Compare Claude Haiku 4.5 and Gemini 3.1 Pro: Lightweight Speed vs 2M Multimodal Scale
Claude Haiku 4.5 vs Gemini 3.1 Pro: which should I use?
Claude Haiku 4.5 is built for high-throughput, low-latency text tasks ($1.00/M input, $5.00/M output), whereas Gemini 3.1 Pro offers a massive 2M context window and native audio/video understanding. Verified 2026-09-07.
Verified 2026-09-07
Where can you find price, speed, and task evidence for Claude Haiku 4.5 and Gemini 3.1 Pro?
Which tasks fit Claude Haiku 4.5 and Gemini 3.1 Pro?
Best-fit task signals from the published model strengths; this is not a substitute for a controlled benchmark.
| Fact | Claude Haiku 4.5 | Gemini 3.1 Pro |
|---|---|---|
| Best fit | Lightweight, high-volume operations like chat, tagging, and moderation. | Whole-codebase, whole-document, or long-video analysis in a single request. |
| Reasoning mode | Unavailable | Available |
What does a Coding Agent workload cost with Claude Haiku 4.5 and Gemini 3.1 Pro?
Modeled for Coding Agent: 20,000 input + 2,000 output tokens per task, 1 turn. This is a workload model, not a provider quote.
| Fact | Claude Haiku 4.5 | Gemini 3.1 Pro |
|---|---|---|
| Coding Agent / task | $0.03 (modeled) (winner) | $0.06 (modeled) |
| Input / output rate | $1.00 / $5.00 per M | $2.00 / $12.00 per M |
How fast are Claude Haiku 4.5 and Gemini 3.1 Pro?
Only non-estimated benchmark results are shown as measured.
| Fact | Claude Haiku 4.5 | Gemini 3.1 Pro |
|---|---|---|
| Measured throughput | 148 tokens/s (winner) | 55 tokens/s |
| Time to first token | 260 ms | 420 ms |
How compatible are Claude Haiku 4.5 and Gemini 3.1 Pro with APIs?
Provider-level wire-format and SDK facts; model-specific parameter differences may still apply.
| Fact | Claude Haiku 4.5 | Gemini 3.1 Pro |
|---|---|---|
| OpenAI SDK | Not drop-in | Not drop-in |
| Request shape | Messages API — system prompt is a top-level field, not a message role, and max_tokens is required on every call. | contents/parts structure instead of messages; an OpenAI-compatible endpoint exists but only covers a subset of parameters. |
| Streaming | SSE (Anthropic content-block events) | SSE (Gemini streamGenerateContent) |
What are the privacy and retention policies for Claude Haiku 4.5 and Gemini 3.1 Pro?
Provider policy and residency facts from the verified provider registry. A missing retention policy is not treated as a guarantee.
| Fact | Claude Haiku 4.5 | Gemini 3.1 Pro |
|---|---|---|
| Provider says API data trains models | No | No |
| Published retention period | Unavailable | Unavailable |
| Data residency | Unavailable | Global by default; Vertex AI offers selectable regional endpoints |
How much effort does it take to migrate between Claude Haiku 4.5 and Gemini 3.1 Pro?
Direction is from each displayed model to the other. Effort is derived from provider compatibility and published parameter maps.
| Fact | Claude Haiku 4.5 | Gemini 3.1 Pro |
|---|---|---|
| Move Claude Haiku 4.5 → Gemini 3.1 Pro | code-change; 1 breaking parameter difference | Target: Gemini 3.1 Pro |
| Move Gemini 3.1 Pro → Claude Haiku 4.5 | Source: Gemini 3.1 Pro | code-change; 7 breaking parameter differences |
| Why | contents/parts structure instead of messages; an OpenAI-compatible endpoint exists but only covers a subset of parameters. | Messages API — system prompt is a top-level field, not a message role, and max_tokens is required on every call. |
Batch 56 · exact-pair decision contributions. Surface verification: 2026-09-02. Exactly three boards are server-rendered from frozen scenario fixtures; assumptions and unavailable joins are not observations.
Exact pair boundary: Anthropic / Google; intake artifact, observable stratum fields, schema/context reserve, exact endpoint, and review frame must join. Requested models are claude-haiku-4-5 and gemini-3.1-pro. Provider, rate, pricing, and task pages remain fact owners.
Heterogeneous-intake stratum compiler
Frozen Batch 56 scenario board. Formula / deterministic rule: eligible = observable size/layout/language/media fields + exact ID + schema/context reserve; unseen difficulty is not evidence Boundary: Owns exact-pair intake strata and admission, not generic extraction or multimodal recommendations.
| Frozen scenario / field ID | Pair, identity, host, surface, and evidence fields | Result | State |
|---|---|---|---|
batch56-claude-haiku-4-5-vs-gemini-3-1-pro-m1-r1short text | pair=claude-haiku-4-5 vs gemini-3.1-pro; provider=Anthropic / Google; hostA=api.anthropic.com; hostB=generativelanguage.googleapis.com; surfaceA=Messages API; surfaceB=Gemini API; requested/effective IDs=claude-haiku-4-5,gemini-3.1-pro; scenario=short text; artifact/hash; observable fields; exact model/host; schema/context reserve; eligible/conditional/blocked state per side; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-02; measurement versus assumption=explicit | Unavailable — short text is a frozen fixture pending exact identity, configuration, and denominator joins. | UNTESTED — assumption cannot establish a verdict |
batch56-claude-haiku-4-5-vs-gemini-3-1-pro-m1-r2dense table | pair=claude-haiku-4-5 vs gemini-3.1-pro; provider=Anthropic / Google; hostA=api.anthropic.com; hostB=generativelanguage.googleapis.com; surfaceA=Messages API; surfaceB=Gemini API; requested/effective IDs=claude-haiku-4-5,gemini-3.1-pro; scenario=dense table; artifact/hash; observable fields; exact model/host; schema/context reserve; eligible/conditional/blocked state per side; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-02; measurement versus assumption=explicit | Unavailable — dense table is a frozen fixture pending exact identity, configuration, and denominator joins. | UNTESTED — assumption cannot establish a verdict |
batch56-claude-haiku-4-5-vs-gemini-3-1-pro-m1-r3photographed form | pair=claude-haiku-4-5 vs gemini-3.1-pro; provider=Anthropic / Google; hostA=api.anthropic.com; hostB=generativelanguage.googleapis.com; surfaceA=Messages API; surfaceB=Gemini API; requested/effective IDs=claude-haiku-4-5,gemini-3.1-pro; scenario=photographed form; artifact/hash; observable fields; exact model/host; schema/context reserve; eligible/conditional/blocked state per side; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-02; measurement versus assumption=explicit | Unavailable — photographed form is a frozen fixture pending exact identity, configuration, and denominator joins. | UNTESTED — assumption cannot establish a verdict |
batch56-claude-haiku-4-5-vs-gemini-3-1-pro-m1-r4long PDF | pair=claude-haiku-4-5 vs gemini-3.1-pro; provider=Anthropic / Google; hostA=api.anthropic.com; hostB=generativelanguage.googleapis.com; surfaceA=Messages API; surfaceB=Gemini API; requested/effective IDs=claude-haiku-4-5,gemini-3.1-pro; scenario=long PDF; artifact/hash; observable fields; exact model/host; schema/context reserve; eligible/conditional/blocked state per side; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-02; measurement versus assumption=explicit | Unavailable — long PDF is a frozen fixture pending exact identity, configuration, and denominator joins. | UNTESTED — assumption cannot establish a verdict |
batch56-claude-haiku-4-5-vs-gemini-3-1-pro-m1-r5mixed-language record | pair=claude-haiku-4-5 vs gemini-3.1-pro; provider=Anthropic / Google; hostA=api.anthropic.com; hostB=generativelanguage.googleapis.com; surfaceA=Messages API; surfaceB=Gemini API; requested/effective IDs=claude-haiku-4-5,gemini-3.1-pro; scenario=mixed-language record; artifact/hash; observable fields; exact model/host; schema/context reserve; eligible/conditional/blocked state per side; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-02; measurement versus assumption=explicit | Unavailable — mixed-language record is a frozen fixture pending exact identity, configuration, and denominator joins. | UNTESTED — assumption cannot establish a verdict |
batch56-claude-haiku-4-5-vs-gemini-3-1-pro-m1-r6unsupported media | pair=claude-haiku-4-5 vs gemini-3.1-pro; provider=Anthropic / Google; hostA=api.anthropic.com; hostB=generativelanguage.googleapis.com; surfaceA=Messages API; surfaceB=Gemini API; requested/effective IDs=claude-haiku-4-5,gemini-3.1-pro; scenario=unsupported media; artifact/hash; observable fields; exact model/host; schema/context reserve; eligible/conditional/blocked state per side; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-02; measurement versus assumption=explicit | Unavailable — unsupported media has no matched, dated bilateral observation. | FAIL CLOSED — manual, probe, or source evidence required |
First-party provenance: Anthropic Messages API; verification date 2026-09-02. Missing or conflicting joins fail closed.
Stratified deep-review evidence receipt
Frozen Batch 56 scenario board. Formula / deterministic rule: weighted_error = Σ(stratum error × frame weight); unmeasured stratum => Unavailable, never pooled away Boundary: Owns preserved sampling-frame and deep-review evidence for Haiku versus Gemini Pro only.
| Frozen scenario / field ID | Pair, identity, host, surface, and evidence fields | Result | State |
|---|---|---|---|
batch56-claude-haiku-4-5-vs-gemini-3-1-pro-m2-r1simple-majority | pair=claude-haiku-4-5 vs gemini-3.1-pro; provider=Anthropic / Google; hostA=api.anthropic.com; hostB=generativelanguage.googleapis.com; surfaceA=Messages API; surfaceB=Gemini API; requested/effective IDs=claude-haiku-4-5,gemini-3.1-pro; scenario=simple-majority; sampling frame/version; prompt/schema/output hashes; exact IDs/settings; model/human disposition; validator and denominator; weighted error or Untested; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-02; measurement versus assumption=explicit | Unavailable — simple-majority is a frozen fixture pending exact identity, configuration, and denominator joins. | UNTESTED — assumption cannot establish a verdict |
batch56-claude-haiku-4-5-vs-gemini-3-1-pro-m2-r2rare-layout | pair=claude-haiku-4-5 vs gemini-3.1-pro; provider=Anthropic / Google; hostA=api.anthropic.com; hostB=generativelanguage.googleapis.com; surfaceA=Messages API; surfaceB=Gemini API; requested/effective IDs=claude-haiku-4-5,gemini-3.1-pro; scenario=rare-layout; sampling frame/version; prompt/schema/output hashes; exact IDs/settings; model/human disposition; validator and denominator; weighted error or Untested; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-02; measurement versus assumption=explicit | Unavailable — rare-layout is a frozen fixture pending exact identity, configuration, and denominator joins. | UNTESTED — assumption cannot establish a verdict |
batch56-claude-haiku-4-5-vs-gemini-3-1-pro-m2-r3low-confidence | pair=claude-haiku-4-5 vs gemini-3.1-pro; provider=Anthropic / Google; hostA=api.anthropic.com; hostB=generativelanguage.googleapis.com; surfaceA=Messages API; surfaceB=Gemini API; requested/effective IDs=claude-haiku-4-5,gemini-3.1-pro; scenario=low-confidence; sampling frame/version; prompt/schema/output hashes; exact IDs/settings; model/human disposition; validator and denominator; weighted error or Untested; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-02; measurement versus assumption=explicit | Unavailable — low-confidence is a frozen fixture pending exact identity, configuration, and denominator joins. | UNTESTED — assumption cannot establish a verdict |
batch56-claude-haiku-4-5-vs-gemini-3-1-pro-m2-r4policy-sensitive | pair=claude-haiku-4-5 vs gemini-3.1-pro; provider=Anthropic / Google; hostA=api.anthropic.com; hostB=generativelanguage.googleapis.com; surfaceA=Messages API; surfaceB=Gemini API; requested/effective IDs=claude-haiku-4-5,gemini-3.1-pro; scenario=policy-sensitive; sampling frame/version; prompt/schema/output hashes; exact IDs/settings; model/human disposition; validator and denominator; weighted error or Untested; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-02; measurement versus assumption=explicit | Unavailable — policy-sensitive is a frozen fixture pending exact identity, configuration, and denominator joins. | UNTESTED — assumption cannot establish a verdict |
batch56-claude-haiku-4-5-vs-gemini-3-1-pro-m2-r5random-audit | pair=claude-haiku-4-5 vs gemini-3.1-pro; provider=Anthropic / Google; hostA=api.anthropic.com; hostB=generativelanguage.googleapis.com; surfaceA=Messages API; surfaceB=Gemini API; requested/effective IDs=claude-haiku-4-5,gemini-3.1-pro; scenario=random-audit; sampling frame/version; prompt/schema/output hashes; exact IDs/settings; model/human disposition; validator and denominator; weighted error or Untested; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-02; measurement versus assumption=explicit | Unavailable — random-audit is a frozen fixture pending exact identity, configuration, and denominator joins. | UNTESTED — assumption cannot establish a verdict |
batch56-claude-haiku-4-5-vs-gemini-3-1-pro-m2-r6missing stratum | pair=claude-haiku-4-5 vs gemini-3.1-pro; provider=Anthropic / Google; hostA=api.anthropic.com; hostB=generativelanguage.googleapis.com; surfaceA=Messages API; surfaceB=Gemini API; requested/effective IDs=claude-haiku-4-5,gemini-3.1-pro; scenario=missing stratum; sampling frame/version; prompt/schema/output hashes; exact IDs/settings; model/human disposition; validator and denominator; weighted error or Untested; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-02; measurement versus assumption=explicit | Unavailable — missing stratum has no matched, dated bilateral observation. | FAIL CLOSED — manual, probe, or source evidence required |
First-party provenance: Google Gemini API model documentation; verification date 2026-09-02. Missing or conflicting joins fail closed.
Review-capacity and backlog control board
Frozen Batch 56 scenario board. Formula / deterministic rule: route = risk priority + sample floor + reviewer capacity + evidence freshness; high-risk review cannot be dropped for spend Boundary: Owns operational review capacity for this pair; it does not rank throughput or quality globally.
| Frozen scenario / field ID | Pair, identity, host, surface, and evidence fields | Result | State |
|---|---|---|---|
batch56-claude-haiku-4-5-vs-gemini-3-1-pro-m3-r1steady intake | pair=claude-haiku-4-5 vs gemini-3.1-pro; provider=Anthropic / Google; hostA=api.anthropic.com; hostB=generativelanguage.googleapis.com; surfaceA=Messages API; surfaceB=Gemini API; requested/effective IDs=claude-haiku-4-5,gemini-3.1-pro; scenario=steady intake; arrivals; sample floor; queue age; capacity assumption; priority rule; Haiku-only/Gemini-review/hold/manual outcome; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-02; measurement versus assumption=explicit | Unavailable — steady intake is a frozen fixture pending exact identity, configuration, and denominator joins. | UNTESTED — assumption cannot establish a verdict |
batch56-claude-haiku-4-5-vs-gemini-3-1-pro-m3-r2rare-stratum spike | pair=claude-haiku-4-5 vs gemini-3.1-pro; provider=Anthropic / Google; hostA=api.anthropic.com; hostB=generativelanguage.googleapis.com; surfaceA=Messages API; surfaceB=Gemini API; requested/effective IDs=claude-haiku-4-5,gemini-3.1-pro; scenario=rare-stratum spike; arrivals; sample floor; queue age; capacity assumption; priority rule; Haiku-only/Gemini-review/hold/manual outcome; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-02; measurement versus assumption=explicit | Unavailable — rare-stratum spike is a frozen fixture pending exact identity, configuration, and denominator joins. | UNTESTED — assumption cannot establish a verdict |
batch56-claude-haiku-4-5-vs-gemini-3-1-pro-m3-r3low-confidence spike | pair=claude-haiku-4-5 vs gemini-3.1-pro; provider=Anthropic / Google; hostA=api.anthropic.com; hostB=generativelanguage.googleapis.com; surfaceA=Messages API; surfaceB=Gemini API; requested/effective IDs=claude-haiku-4-5,gemini-3.1-pro; scenario=low-confidence spike; arrivals; sample floor; queue age; capacity assumption; priority rule; Haiku-only/Gemini-review/hold/manual outcome; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-02; measurement versus assumption=explicit | Unavailable — low-confidence spike is a frozen fixture pending exact identity, configuration, and denominator joins. | UNTESTED — assumption cannot establish a verdict |
batch56-claude-haiku-4-5-vs-gemini-3-1-pro-m3-r4reviewer saturation | pair=claude-haiku-4-5 vs gemini-3.1-pro; provider=Anthropic / Google; hostA=api.anthropic.com; hostB=generativelanguage.googleapis.com; surfaceA=Messages API; surfaceB=Gemini API; requested/effective IDs=claude-haiku-4-5,gemini-3.1-pro; scenario=reviewer saturation; arrivals; sample floor; queue age; capacity assumption; priority rule; Haiku-only/Gemini-review/hold/manual outcome; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-02; measurement versus assumption=explicit | Unavailable — reviewer saturation is a frozen fixture pending exact identity, configuration, and denominator joins. | UNTESTED — assumption cannot establish a verdict |
batch56-claude-haiku-4-5-vs-gemini-3-1-pro-m3-r5Gemini unavailable | pair=claude-haiku-4-5 vs gemini-3.1-pro; provider=Anthropic / Google; hostA=api.anthropic.com; hostB=generativelanguage.googleapis.com; surfaceA=Messages API; surfaceB=Gemini API; requested/effective IDs=claude-haiku-4-5,gemini-3.1-pro; scenario=Gemini unavailable; arrivals; sample floor; queue age; capacity assumption; priority rule; Haiku-only/Gemini-review/hold/manual outcome; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-02; measurement versus assumption=explicit | Unavailable — Gemini unavailable is a frozen fixture pending exact identity, configuration, and denominator joins. | UNTESTED — assumption cannot establish a verdict |
batch56-claude-haiku-4-5-vs-gemini-3-1-pro-m3-r6evidence expired | pair=claude-haiku-4-5 vs gemini-3.1-pro; provider=Anthropic / Google; hostA=api.anthropic.com; hostB=generativelanguage.googleapis.com; surfaceA=Messages API; surfaceB=Gemini API; requested/effective IDs=claude-haiku-4-5,gemini-3.1-pro; scenario=evidence expired; arrivals; sample floor; queue age; capacity assumption; priority rule; Haiku-only/Gemini-review/hold/manual outcome; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-02; measurement versus assumption=explicit | Unavailable — evidence expired has no matched, dated bilateral observation. | FAIL CLOSED — manual, probe, or source evidence required |
First-party provenance: Google Gemini API rate limits; verification date 2026-09-02. Missing or conflicting joins fail closed.
Method and limitations: formulas are deterministic; observed and assumed inputs are labeled; no missing provider, host, account, region, realm, alias, snapshot, revision, weight, artifact, control, tool, modality, workload, rate-period, timestamp, or result is transferred. Run the claude-haiku-4-5-vs-gemini-3-1-pro Batch 56 scenario →
Batch 63 · exact-pair decision contributions · verified 2026-09-07
Exact pair boundary: Anthropic / Google; model endpoint, 200K vs 2M context, ultra-fast text vs deep multimodal analysis, and token pricing must join. Requested models are claude-haiku-4-5 and gemini-3.1-pro. Provider, rate, pricing, and task pages remain fact owners.
Context window (200K vs 2M) and modality gating matrix
Frozen Batch 63 scenario board. Formula / deterministic rule: admissible = (audio_or_video ? Gemini : Both) && (context <= 200K ? Both : (context <= 2M ? Gemini : Excluded)) Boundary: Owns context and modality capability gating between Haiku 4.5 and Gemini 3.1 Pro.
| Frozen scenario / field ID | Pair, identity, host, surface, and evidence fields | Result | State |
|---|---|---|---|
batch63-claude-haiku-4-5-vs-gemini-3-1-pro-m1-r1short text customer query (2K tokens) | pair=claude-haiku-4-5 vs gemini-3.1-pro; provider=Anthropic / Google; hostA=api.anthropic.com; hostB=generativelanguage.googleapis.com; surfaceA=Anthropic Messages API; surfaceB=Google AI Studio / Vertex AI; requested/effective IDs=claude-haiku-4-5,gemini-3.1-pro; scenario=short text customer query (2K tokens); task modality; context tokens; audio/video needed; Haiku eligible; Gemini eligible; gating recommendation; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-07; measurement versus assumption=explicit | Unavailable — short text customer query (2K tokens) is a frozen fixture pending exact identity, configuration, and denominator joins. | UNTESTED — assumption cannot establish a verdict |
batch63-claude-haiku-4-5-vs-gemini-3-1-pro-m1-r2medium document extraction (50K tokens) | pair=claude-haiku-4-5 vs gemini-3.1-pro; provider=Anthropic / Google; hostA=api.anthropic.com; hostB=generativelanguage.googleapis.com; surfaceA=Anthropic Messages API; surfaceB=Google AI Studio / Vertex AI; requested/effective IDs=claude-haiku-4-5,gemini-3.1-pro; scenario=medium document extraction (50K tokens); task modality; context tokens; audio/video needed; Haiku eligible; Gemini eligible; gating recommendation; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-07; measurement versus assumption=explicit | Unavailable — medium document extraction (50K tokens) is a frozen fixture pending exact identity, configuration, and denominator joins. | UNTESTED — assumption cannot establish a verdict |
batch63-claude-haiku-4-5-vs-gemini-3-1-pro-m1-r3large document analysis (200K context boundary) | pair=claude-haiku-4-5 vs gemini-3.1-pro; provider=Anthropic / Google; hostA=api.anthropic.com; hostB=generativelanguage.googleapis.com; surfaceA=Anthropic Messages API; surfaceB=Google AI Studio / Vertex AI; requested/effective IDs=claude-haiku-4-5,gemini-3.1-pro; scenario=large document analysis (200K context boundary); task modality; context tokens; audio/video needed; Haiku eligible; Gemini eligible; gating recommendation; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-07; measurement versus assumption=explicit | Unavailable — large document analysis (200K context boundary) is a frozen fixture pending exact identity, configuration, and denominator joins. | UNTESTED — assumption cannot establish a verdict |
batch63-claude-haiku-4-5-vs-gemini-3-1-pro-m1-r4massive document repository (1M tokens) | pair=claude-haiku-4-5 vs gemini-3.1-pro; provider=Anthropic / Google; hostA=api.anthropic.com; hostB=generativelanguage.googleapis.com; surfaceA=Anthropic Messages API; surfaceB=Google AI Studio / Vertex AI; requested/effective IDs=claude-haiku-4-5,gemini-3.1-pro; scenario=massive document repository (1M tokens); task modality; context tokens; audio/video needed; Haiku eligible; Gemini eligible; gating recommendation; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-07; measurement versus assumption=explicit | Unavailable — massive document repository (1M tokens) is a frozen fixture pending exact identity, configuration, and denominator joins. | UNTESTED — assumption cannot establish a verdict |
batch63-claude-haiku-4-5-vs-gemini-3-1-pro-m1-r5video recording inspection (250K tokens) | pair=claude-haiku-4-5 vs gemini-3.1-pro; provider=Anthropic / Google; hostA=api.anthropic.com; hostB=generativelanguage.googleapis.com; surfaceA=Anthropic Messages API; surfaceB=Google AI Studio / Vertex AI; requested/effective IDs=claude-haiku-4-5,gemini-3.1-pro; scenario=video recording inspection (250K tokens); task modality; context tokens; audio/video needed; Haiku eligible; Gemini eligible; gating recommendation; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-07; measurement versus assumption=explicit | Unavailable — video recording inspection (250K tokens) is a frozen fixture pending exact identity, configuration, and denominator joins. | UNTESTED — assumption cannot establish a verdict |
batch63-claude-haiku-4-5-vs-gemini-3-1-pro-m1-r6unsupported media payload format | pair=claude-haiku-4-5 vs gemini-3.1-pro; provider=Anthropic / Google; hostA=api.anthropic.com; hostB=generativelanguage.googleapis.com; surfaceA=Anthropic Messages API; surfaceB=Google AI Studio / Vertex AI; requested/effective IDs=claude-haiku-4-5,gemini-3.1-pro; scenario=unsupported media payload format; task modality; context tokens; audio/video needed; Haiku eligible; Gemini eligible; gating recommendation; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-07; measurement versus assumption=explicit | Unavailable — unsupported media payload format has no matched, dated bilateral observation. | FAIL CLOSED — manual, probe, or source evidence required |
First-party provenance: Google Gemini API model documentation; verification date 2026-09-07. Missing or conflicting joins fail closed.
Token pricing and high-volume classification spend board
Frozen Batch 63 scenario board. Formula / deterministic rule: monthly_spend = calls * ((in_tokens * rate_in + out_tokens * rate_out) / 1M) Boundary: Owns base tariff comparisons and workload budgeting.
| Frozen scenario / field ID | Pair, identity, host, surface, and evidence fields | Result | State |
|---|---|---|---|
batch63-claude-haiku-4-5-vs-gemini-3-1-pro-m2-r110K customer classification calls | pair=claude-haiku-4-5 vs gemini-3.1-pro; provider=Anthropic / Google; hostA=api.anthropic.com; hostB=generativelanguage.googleapis.com; surfaceA=Anthropic Messages API; surfaceB=Google AI Studio / Vertex AI; requested/effective IDs=claude-haiku-4-5,gemini-3.1-pro; scenario=10K customer classification calls; query volume; input tokens; output tokens; Haiku spend; Gemini spend; cost variance; price champion; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-07; measurement versus assumption=explicit | Unavailable — 10K customer classification calls is a frozen fixture pending exact identity, configuration, and denominator joins. | UNTESTED — assumption cannot establish a verdict |
batch63-claude-haiku-4-5-vs-gemini-3-1-pro-m2-r2100K automated email triage requests | pair=claude-haiku-4-5 vs gemini-3.1-pro; provider=Anthropic / Google; hostA=api.anthropic.com; hostB=generativelanguage.googleapis.com; surfaceA=Anthropic Messages API; surfaceB=Google AI Studio / Vertex AI; requested/effective IDs=claude-haiku-4-5,gemini-3.1-pro; scenario=100K automated email triage requests; query volume; input tokens; output tokens; Haiku spend; Gemini spend; cost variance; price champion; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-07; measurement versus assumption=explicit | Unavailable — 100K automated email triage requests is a frozen fixture pending exact identity, configuration, and denominator joins. | UNTESTED — assumption cannot establish a verdict |
batch63-claude-haiku-4-5-vs-gemini-3-1-pro-m2-r3500K real-time log analysis events | pair=claude-haiku-4-5 vs gemini-3.1-pro; provider=Anthropic / Google; hostA=api.anthropic.com; hostB=generativelanguage.googleapis.com; surfaceA=Anthropic Messages API; surfaceB=Google AI Studio / Vertex AI; requested/effective IDs=claude-haiku-4-5,gemini-3.1-pro; scenario=500K real-time log analysis events; query volume; input tokens; output tokens; Haiku spend; Gemini spend; cost variance; price champion; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-07; measurement versus assumption=explicit | Unavailable — 500K real-time log analysis events is a frozen fixture pending exact identity, configuration, and denominator joins. | UNTESTED — assumption cannot establish a verdict |
batch63-claude-haiku-4-5-vs-gemini-3-1-pro-m2-r41M high-volume moderation queries | pair=claude-haiku-4-5 vs gemini-3.1-pro; provider=Anthropic / Google; hostA=api.anthropic.com; hostB=generativelanguage.googleapis.com; surfaceA=Anthropic Messages API; surfaceB=Google AI Studio / Vertex AI; requested/effective IDs=claude-haiku-4-5,gemini-3.1-pro; scenario=1M high-volume moderation queries; query volume; input tokens; output tokens; Haiku spend; Gemini spend; cost variance; price champion; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-07; measurement versus assumption=explicit | Unavailable — 1M high-volume moderation queries is a frozen fixture pending exact identity, configuration, and denominator joins. | UNTESTED — assumption cannot establish a verdict |
batch63-claude-haiku-4-5-vs-gemini-3-1-pro-m2-r5prompt caching active workload | pair=claude-haiku-4-5 vs gemini-3.1-pro; provider=Anthropic / Google; hostA=api.anthropic.com; hostB=generativelanguage.googleapis.com; surfaceA=Anthropic Messages API; surfaceB=Google AI Studio / Vertex AI; requested/effective IDs=claude-haiku-4-5,gemini-3.1-pro; scenario=prompt caching active workload; query volume; input tokens; output tokens; Haiku spend; Gemini spend; cost variance; price champion; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-07; measurement versus assumption=explicit | Unavailable — prompt caching active workload is a frozen fixture pending exact identity, configuration, and denominator joins. | UNTESTED — assumption cannot establish a verdict |
batch63-claude-haiku-4-5-vs-gemini-3-1-pro-m2-r6unresolved billing currency | pair=claude-haiku-4-5 vs gemini-3.1-pro; provider=Anthropic / Google; hostA=api.anthropic.com; hostB=generativelanguage.googleapis.com; surfaceA=Anthropic Messages API; surfaceB=Google AI Studio / Vertex AI; requested/effective IDs=claude-haiku-4-5,gemini-3.1-pro; scenario=unresolved billing currency; query volume; input tokens; output tokens; Haiku spend; Gemini spend; cost variance; price champion; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-07; measurement versus assumption=explicit | Unavailable — unresolved billing currency has no matched, dated bilateral observation. | FAIL CLOSED — manual, probe, or source evidence required |
First-party provenance: Anthropic API pricing; verification date 2026-09-07. Missing or conflicting joins fail closed.
Turnaround latency SLA and user experience audit
Frozen Batch 63 scenario board. Formula / deterministic rule: sla_compliant = turnaround_ms <= max_allowed_latency Boundary: Owns user experience responsiveness and latency benchmarks.
| Frozen scenario / field ID | Pair, identity, host, surface, and evidence fields | Result | State |
|---|---|---|---|
batch63-claude-haiku-4-5-vs-gemini-3-1-pro-m3-r1real-time chat autocomplete (<200ms) | pair=claude-haiku-4-5 vs gemini-3.1-pro; provider=Anthropic / Google; hostA=api.anthropic.com; hostB=generativelanguage.googleapis.com; surfaceA=Anthropic Messages API; surfaceB=Google AI Studio / Vertex AI; requested/effective IDs=claude-haiku-4-5,gemini-3.1-pro; scenario=real-time chat autocomplete (<200ms); use case; latency target; Haiku latency; Gemini latency; compliance status; UX recommendation; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-07; measurement versus assumption=explicit | Unavailable — real-time chat autocomplete (<200ms) is a frozen fixture pending exact identity, configuration, and denominator joins. | UNTESTED — assumption cannot establish a verdict |
batch63-claude-haiku-4-5-vs-gemini-3-1-pro-m3-r2customer support agent reply (<800ms) | pair=claude-haiku-4-5 vs gemini-3.1-pro; provider=Anthropic / Google; hostA=api.anthropic.com; hostB=generativelanguage.googleapis.com; surfaceA=Anthropic Messages API; surfaceB=Google AI Studio / Vertex AI; requested/effective IDs=claude-haiku-4-5,gemini-3.1-pro; scenario=customer support agent reply (<800ms); use case; latency target; Haiku latency; Gemini latency; compliance status; UX recommendation; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-07; measurement versus assumption=explicit | Unavailable — customer support agent reply (<800ms) is a frozen fixture pending exact identity, configuration, and denominator joins. | UNTESTED — assumption cannot establish a verdict |
batch63-claude-haiku-4-5-vs-gemini-3-1-pro-m3-r3offline document synthesis (batch acceptable) | pair=claude-haiku-4-5 vs gemini-3.1-pro; provider=Anthropic / Google; hostA=api.anthropic.com; hostB=generativelanguage.googleapis.com; surfaceA=Anthropic Messages API; surfaceB=Google AI Studio / Vertex AI; requested/effective IDs=claude-haiku-4-5,gemini-3.1-pro; scenario=offline document synthesis (batch acceptable); use case; latency target; Haiku latency; Gemini latency; compliance status; UX recommendation; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-07; measurement versus assumption=explicit | Unavailable — offline document synthesis (batch acceptable) is a frozen fixture pending exact identity, configuration, and denominator joins. | UNTESTED — assumption cannot establish a verdict |
batch63-claude-haiku-4-5-vs-gemini-3-1-pro-m3-r4multimodal video scene search (batch acceptable) | pair=claude-haiku-4-5 vs gemini-3.1-pro; provider=Anthropic / Google; hostA=api.anthropic.com; hostB=generativelanguage.googleapis.com; surfaceA=Anthropic Messages API; surfaceB=Google AI Studio / Vertex AI; requested/effective IDs=claude-haiku-4-5,gemini-3.1-pro; scenario=multimodal video scene search (batch acceptable); use case; latency target; Haiku latency; Gemini latency; compliance status; UX recommendation; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-07; measurement versus assumption=explicit | Unavailable — multimodal video scene search (batch acceptable) is a frozen fixture pending exact identity, configuration, and denominator joins. | UNTESTED — assumption cannot establish a verdict |
batch63-claude-haiku-4-5-vs-gemini-3-1-pro-m3-r5network transport congestion buffer | pair=claude-haiku-4-5 vs gemini-3.1-pro; provider=Anthropic / Google; hostA=api.anthropic.com; hostB=generativelanguage.googleapis.com; surfaceA=Anthropic Messages API; surfaceB=Google AI Studio / Vertex AI; requested/effective IDs=claude-haiku-4-5,gemini-3.1-pro; scenario=network transport congestion buffer; use case; latency target; Haiku latency; Gemini latency; compliance status; UX recommendation; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-07; measurement versus assumption=explicit | Unavailable — network transport congestion buffer is a frozen fixture pending exact identity, configuration, and denominator joins. | UNTESTED — assumption cannot establish a verdict |
batch63-claude-haiku-4-5-vs-gemini-3-1-pro-m3-r6unmeasured speed fixture | pair=claude-haiku-4-5 vs gemini-3.1-pro; provider=Anthropic / Google; hostA=api.anthropic.com; hostB=generativelanguage.googleapis.com; surfaceA=Anthropic Messages API; surfaceB=Google AI Studio / Vertex AI; requested/effective IDs=claude-haiku-4-5,gemini-3.1-pro; scenario=unmeasured speed fixture; use case; latency target; Haiku latency; Gemini latency; compliance status; UX recommendation; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-07; measurement versus assumption=explicit | Unavailable — unmeasured speed fixture is a frozen fixture pending exact identity, configuration, and denominator joins. | UNTESTED — assumption cannot establish a verdict |
First-party provenance: All AI Ask measured speed dataset; verification date 2026-09-07. Missing or conflicting joins fail closed.
Method and limitations: formulas are deterministic; observed and assumed inputs are labeled; no missing provider, host, account, region, realm, alias, snapshot, revision, weight, artifact, control, tool, modality, workload, rate-period, timestamp, or result is transferred. Run the claude-haiku-4-5-vs-gemini-3-1-pro Batch 63 scenario →
How do Claude Haiku 4.5 and Gemini 3.1 Pro compare on specs?
| Claude Haiku 4.5 | Gemini 3.1 Pro | |
|---|---|---|
| Price (input) | $1.00/M ✓ | $2.00/M |
| Price (output) | $5.00/M ✓ | $12.00/M |
| Blended price | $2.00/M ✓ | $4.50/M |
| Context window | 200,000 tokens | 2,000,000 tokens ✓ |
| Max output | 32,000 tokens | 64,000 tokens ✓ |
| Modalities | text, vision | text, vision, audio |
| Reasoning mode | No | Yes |
| Released | 2025-11 | 2026-02 |
| Speed | 148 t/s ✓ | 55 t/s |
How much do Claude Haiku 4.5 and Gemini 3.1 Pro cost at scale?
| Tokens / month | Claude Haiku 4.5 | Gemini 3.1 Pro | Delta |
|---|---|---|---|
| 1,000,000 | $2.00 | $4.50 | $2.50 (2.3×) |
| 10,000,000 | $20.00 | $45.00 | $25.00 (2.3×) |
| 100,000,000 | $200.00 | $450.00 | $250.00 (2.3×) |
Choose Claude Haiku 4.5 if…
- ✓Fastest Claude model
- ✓Lowest Claude pricing
- ✓Vision input included
- ✓Lightweight, high-volume operations like chat, tagging, and moderation.
Choose Gemini 3.1 Pro if…
- ✓Largest context window of any current model (2M tokens)
- ✓Native audio and video understanding
- ✓Google Search grounding
- ✓Whole-codebase, whole-document, or long-video analysis in a single request.
Run this exact matchup right now
Send the same prompt to Claude Haiku 4.5 and Gemini 3.1 Pro side by side and see the outputs yourself.
Try Claude Haiku 4.5 vs Gemini 3.1 Pro FreeWhat are common questions about Claude Haiku 4.5 and Gemini 3.1 Pro?
Is Claude Haiku 4.5 cheaper than Gemini 3.1 Pro?
Claude Haiku 4.5 is cheaper, at $2.00 per million blended tokens vs $4.50 for Gemini 3.1 Pro.
Which has the bigger context window, Claude Haiku 4.5 or Gemini 3.1 Pro?
Gemini 3.1 Pro has the larger context window: 2,000,000 tokens vs 200,000.
Can Claude Haiku 4.5 replace Gemini 3.1 Pro for coding?
Both are viable for coding. Fastest Claude model (Claude Haiku 4.5) vs Largest context window of any current model (2M tokens) (Gemini 3.1 Pro) — pick based on which strength matters more for your workload.
Which is faster, Claude Haiku 4.5 or Gemini 3.1 Pro?
Claude Haiku 4.5 is faster: 148 t/s vs 55 t/s, measured on our speed benchmarks.
Neither of these? See Gemini 3.1 Pro alternatives.
What related comparisons help choose between Claude Haiku 4.5 and Gemini 3.1 Pro?
Claude Haiku 4.5 pricingGemini 3.1 Pro pricingvs DeepSeek V4 Provs Grok 4.3vs Claude Sonnet 4.6vs Claude Opus 4.8Premium model tests
Pricing verified 2026-04-06. Specs verified 2026-08-14.