Compare Claude Sonnet 5 and Gemini 3.1 Pro on pricing ratios
Claude Sonnet 5 vs Gemini 3.1 Pro: which should I use?
Compare Claude Sonnet 5 and Gemini 3.1 Pro by evaluating token ratio crossovers (input-heavy vs output-heavy), context requirements (500K vs 2M), and audio/video input eligibility. Verified 2026-09-07; unmeasured Sonnet benchmark runs fail closed.
Verified 2026-09-07
Where can you find price, speed, and task evidence for Claude Sonnet 5 and Gemini 3.1 Pro?
Which tasks fit Claude Sonnet 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 Sonnet 5 | Gemini 3.1 Pro |
|---|---|---|
| Best fit | Production workloads that need near-Opus quality with better speed and cost. | Whole-codebase, whole-document, or long-video analysis in a single request. |
| Reasoning mode | Available | Available |
What does a Coding Agent workload cost with Claude Sonnet 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 Sonnet 5 | Gemini 3.1 Pro |
|---|---|---|
| Coding Agent / task | $0.06 (modeled) (winner) | $0.06 (modeled) |
| Input / output rate | $2.00 / $10.00 per M | $2.00 / $12.00 per M |
How fast are Claude Sonnet 5 and Gemini 3.1 Pro?
Only non-estimated benchmark results are shown as measured.
| Fact | Claude Sonnet 5 | Gemini 3.1 Pro |
|---|---|---|
| Measured throughput | Unavailable | 55 tokens/s |
| Time to first token | Unavailable | 420 ms |
How compatible are Claude Sonnet 5 and Gemini 3.1 Pro with APIs?
Provider-level wire-format and SDK facts; model-specific parameter differences may still apply.
| Fact | Claude Sonnet 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 Sonnet 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 Sonnet 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 Sonnet 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 Sonnet 5 | Gemini 3.1 Pro |
|---|---|---|
| Move Claude Sonnet 5 → Gemini 3.1 Pro | code-change; 1 breaking parameter difference | Target: Gemini 3.1 Pro |
| Move Gemini 3.1 Pro → Claude Sonnet 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. |
Claude Sonnet 5 vs Gemini 3.1 Pro input/output-ratio crossover
Formula: monthly cost = 20,000 × [(input tokens × input $/M + output tokens × output $/M) / 1,000,000]; outputs are multiplied into the 20K-call volume.
| Ratio | Per-call shape | Claude Sonnet 5 / 20K calls | Gemini 3.1 Pro / 20K calls |
|---|---|---|---|
| 1:4 | 10,000 in / 40,000 out | $8400.000000 | $10000.000000 |
| 1:1 | 10,000 in / 10,000 out | $2400.000000 | $2800.000000 |
| 4:1 | 40,000 in / 10,000 out | $3600.000000 | $4000.000000 |
| 20:1 | 200,000 in / 10,000 out | $10000.000000 | $10400.000000 |
Verified 2026-04-06. Pricing provenance: Claude Sonnet 5 pricing (2026-08-14); Gemini 3.1 Pro pricing (2026-04-06). Capability: Claude Sonnet 5; Gemini 3.1 Pro. Provider: Anthropic; Google. Missing evidence is Unavailable, never inferred.
Claude Sonnet 5 vs Gemini 3.1 Pro context and modality eligibility router
Formula: over-window sides are excluded before price; native model modalities and gateway-supported inputs are separate joined fields.
| Requirement | Claude Sonnet 5 | Gemini 3.1 Pro |
|---|---|---|
| 500K text | Eligible | Eligible |
| 1M text | Excluded | Eligible |
| 2M text | Excluded | Eligible |
| Image | Native; gateway: text, image | Native; gateway: text, image |
| Audio | Unavailable; gateway: text, image | Native; gateway: text, image |
Verified 2026-04-06. Pricing provenance: Claude Sonnet 5 pricing (2026-08-14); Gemini 3.1 Pro pricing (2026-04-06). Capability: Claude Sonnet 5; Gemini 3.1 Pro. Provider: Anthropic; Google. Missing evidence is Unavailable, never inferred.
Claude Sonnet 5 vs Gemini 3.1 Pro evidence-before-deployment plan
Formula: matched evidence coverage = exact result count / required prompt count; concrete matched-prompt counts are visible and no provisional quality ranking is emitted when either side is missing.
| Requirement | Claude Sonnet 5 | Gemini 3.1 Pro |
|---|---|---|
| Premium constraint test | Unavailable | 98/100; 180 in / 518 out; 22828 ms; $0.006576; run 2026-06-21T00:00:00.000Z |
| Measured speed + TTFT | Unavailable | 55 tokens/s; TTFT 420 ms; p95 50.6 tokens/s; n=5 |
| Matched prompt count | 0 exact prompts | 2 exact prompts |
| Required matched count | 5+ prompts, same grader and acceptance floor | 5+ prompts, same grader and acceptance floor |
| Provisional quality ranking | Unavailable | Unavailable |
Verified 2026-04-06. Pricing provenance: Claude Sonnet 5 pricing (2026-08-14); Gemini 3.1 Pro pricing (2026-04-06). Capability: Claude Sonnet 5; Gemini 3.1 Pro. Provider: Anthropic; Google. Missing evidence is Unavailable, never inferred.
Batch 60 · exact-pair decision contributions · verified 2026-09-07
Exact pair boundary: Anthropic / Google; model endpoint, input/output token ratio, context tier, audio/video support, and speed metrics must join. Requested models are claude-sonnet-5 and gemini-3.1-pro. Provider, rate, pricing, and task pages remain fact owners.
Input-to-output ratio economic crossover
Frozen Batch 60 scenario board. Formula / deterministic rule: cost = (tokens_in * rate_in + tokens_out * rate_out) / 1M; crossover points depend on output tariff differential Boundary: Owns token shape sensitivity analysis.
| Frozen scenario / field ID | Pair, identity, host, surface, and evidence fields | Result | State |
|---|---|---|---|
batch60-claude-sonnet-5-vs-gemini-3-1-pro-m1-r1input-heavy RAG (20:1 ratio) | pair=claude-sonnet-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-sonnet-5,gemini-3.1-pro; scenario=input-heavy RAG (20:1 ratio); token ratio; monthly input volume; monthly output volume; Sonnet monthly spend; Gemini monthly spend; price winner; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-07; measurement versus assumption=explicit | Unavailable — input-heavy RAG (20:1 ratio) is a frozen fixture pending exact identity, configuration, and denominator joins. | UNTESTED — assumption cannot establish a verdict |
batch60-claude-sonnet-5-vs-gemini-3-1-pro-m1-r2standard chat balance (4:1 ratio) | pair=claude-sonnet-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-sonnet-5,gemini-3.1-pro; scenario=standard chat balance (4:1 ratio); token ratio; monthly input volume; monthly output volume; Sonnet monthly spend; Gemini monthly spend; price winner; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-07; measurement versus assumption=explicit | Unavailable — standard chat balance (4:1 ratio) is a frozen fixture pending exact identity, configuration, and denominator joins. | UNTESTED — assumption cannot establish a verdict |
batch60-claude-sonnet-5-vs-gemini-3-1-pro-m1-r3balanced task (1:1 ratio) | pair=claude-sonnet-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-sonnet-5,gemini-3.1-pro; scenario=balanced task (1:1 ratio); token ratio; monthly input volume; monthly output volume; Sonnet monthly spend; Gemini monthly spend; price winner; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-07; measurement versus assumption=explicit | Unavailable — balanced task (1:1 ratio) is a frozen fixture pending exact identity, configuration, and denominator joins. | UNTESTED — assumption cannot establish a verdict |
batch60-claude-sonnet-5-vs-gemini-3-1-pro-m1-r4output-heavy generation (1:4 ratio) | pair=claude-sonnet-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-sonnet-5,gemini-3.1-pro; scenario=output-heavy generation (1:4 ratio); token ratio; monthly input volume; monthly output volume; Sonnet monthly spend; Gemini monthly spend; price winner; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-07; measurement versus assumption=explicit | Unavailable — output-heavy generation (1:4 ratio) is a frozen fixture pending exact identity, configuration, and denominator joins. | UNTESTED — assumption cannot establish a verdict |
batch60-claude-sonnet-5-vs-gemini-3-1-pro-m1-r5extreme coding generation (1:10 ratio) | pair=claude-sonnet-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-sonnet-5,gemini-3.1-pro; scenario=extreme coding generation (1:10 ratio); token ratio; monthly input volume; monthly output volume; Sonnet monthly spend; Gemini monthly spend; price winner; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-07; measurement versus assumption=explicit | Unavailable — extreme coding generation (1:10 ratio) is a frozen fixture pending exact identity, configuration, and denominator joins. | UNTESTED — assumption cannot establish a verdict |
batch60-claude-sonnet-5-vs-gemini-3-1-pro-m1-r6unresolved token distribution | pair=claude-sonnet-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-sonnet-5,gemini-3.1-pro; scenario=unresolved token distribution; token ratio; monthly input volume; monthly output volume; Sonnet monthly spend; Gemini monthly spend; price winner; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-07; measurement versus assumption=explicit | Unavailable — unresolved token distribution has no matched, dated bilateral observation. | FAIL CLOSED — manual, probe, or source evidence required |
First-party provenance: Google Gemini API pricing; verification date 2026-09-07. Missing or conflicting joins fail closed.
Context tier and native modality router
Frozen Batch 60 scenario board. Formula / deterministic rule: route = (audio || video) ? Gemini : (context > 500K ? Gemini : EvaluatedOnQuality) Boundary: Owns multimodal input and context tier gating.
| Frozen scenario / field ID | Pair, identity, host, surface, and evidence fields | Result | State |
|---|---|---|---|
batch60-claude-sonnet-5-vs-gemini-3-1-pro-m2-r1image + text PDF review (100K) | pair=claude-sonnet-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-sonnet-5,gemini-3.1-pro; scenario=image + text PDF review (100K); input modality; token scale; Sonnet compatibility; Gemini compatibility; gateway support; routing result; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-07; measurement versus assumption=explicit | Unavailable — image + text PDF review (100K) is a frozen fixture pending exact identity, configuration, and denominator joins. | UNTESTED — assumption cannot establish a verdict |
batch60-claude-sonnet-5-vs-gemini-3-1-pro-m2-r2expanded document analysis (450K) | pair=claude-sonnet-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-sonnet-5,gemini-3.1-pro; scenario=expanded document analysis (450K); input modality; token scale; Sonnet compatibility; Gemini compatibility; gateway support; routing result; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-07; measurement versus assumption=explicit | Unavailable — expanded document analysis (450K) is a frozen fixture pending exact identity, configuration, and denominator joins. | UNTESTED — assumption cannot establish a verdict |
batch60-claude-sonnet-5-vs-gemini-3-1-pro-m2-r3massive context boundary (1M) | pair=claude-sonnet-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-sonnet-5,gemini-3.1-pro; scenario=massive context boundary (1M); input modality; token scale; Sonnet compatibility; Gemini compatibility; gateway support; routing result; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-07; measurement versus assumption=explicit | Unavailable — massive context boundary (1M) is a frozen fixture pending exact identity, configuration, and denominator joins. | UNTESTED — assumption cannot establish a verdict |
batch60-claude-sonnet-5-vs-gemini-3-1-pro-m2-r4extreme context corpus (2M) | pair=claude-sonnet-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-sonnet-5,gemini-3.1-pro; scenario=extreme context corpus (2M); input modality; token scale; Sonnet compatibility; Gemini compatibility; gateway support; routing result; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-07; measurement versus assumption=explicit | Unavailable — extreme context corpus (2M) is a frozen fixture pending exact identity, configuration, and denominator joins. | UNTESTED — assumption cannot establish a verdict |
batch60-claude-sonnet-5-vs-gemini-3-1-pro-m2-r5native video understanding | pair=claude-sonnet-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-sonnet-5,gemini-3.1-pro; scenario=native video understanding; input modality; token scale; Sonnet compatibility; Gemini compatibility; gateway support; routing result; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-07; measurement versus assumption=explicit | Unavailable — native video understanding is a frozen fixture pending exact identity, configuration, and denominator joins. | UNTESTED — assumption cannot establish a verdict |
batch60-claude-sonnet-5-vs-gemini-3-1-pro-m2-r6unsupported media format | pair=claude-sonnet-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-sonnet-5,gemini-3.1-pro; scenario=unsupported media format; input modality; token scale; Sonnet compatibility; Gemini compatibility; gateway support; routing result; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-07; measurement versus assumption=explicit | Unavailable — unsupported media 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.
Empirical evidence and deployment audit plan
Frozen Batch 60 scenario board. Formula / deterministic rule: deploy_approved = benchmark_pass && ttft_acceptable && error_rate <= threshold; unmeasured runs => Untested Boundary: Owns deployment acceptance criteria before switching production traffic.
| Frozen scenario / field ID | Pair, identity, host, surface, and evidence fields | Result | State |
|---|---|---|---|
batch60-claude-sonnet-5-vs-gemini-3-1-pro-m3-r1first-party speed benchmark | pair=claude-sonnet-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-sonnet-5,gemini-3.1-pro; scenario=first-party speed benchmark; validation requirement; Sonnet status; Gemini status; test source; deployment approval status; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-07; measurement versus assumption=explicit | Unavailable — first-party speed benchmark is a frozen fixture pending exact identity, configuration, and denominator joins. | UNTESTED — assumption cannot establish a verdict |
batch60-claude-sonnet-5-vs-gemini-3-1-pro-m3-r2reasoning puzzle verification | pair=claude-sonnet-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-sonnet-5,gemini-3.1-pro; scenario=reasoning puzzle verification; validation requirement; Sonnet status; Gemini status; test source; deployment approval status; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-07; measurement versus assumption=explicit | Unavailable — reasoning puzzle verification is a frozen fixture pending exact identity, configuration, and denominator joins. | UNTESTED — assumption cannot establish a verdict |
batch60-claude-sonnet-5-vs-gemini-3-1-pro-m3-r3code completion accuracy | pair=claude-sonnet-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-sonnet-5,gemini-3.1-pro; scenario=code completion accuracy; validation requirement; Sonnet status; Gemini status; test source; deployment approval status; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-07; measurement versus assumption=explicit | Unavailable — code completion accuracy is a frozen fixture pending exact identity, configuration, and denominator joins. | UNTESTED — assumption cannot establish a verdict |
batch60-claude-sonnet-5-vs-gemini-3-1-pro-m3-r4prompt caching cache-hit rate | pair=claude-sonnet-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-sonnet-5,gemini-3.1-pro; scenario=prompt caching cache-hit rate; validation requirement; Sonnet status; Gemini status; test source; deployment approval status; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-07; measurement versus assumption=explicit | Unavailable — prompt caching cache-hit rate is a frozen fixture pending exact identity, configuration, and denominator joins. | UNTESTED — assumption cannot establish a verdict |
batch60-claude-sonnet-5-vs-gemini-3-1-pro-m3-r5rate limit quota availability | pair=claude-sonnet-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-sonnet-5,gemini-3.1-pro; scenario=rate limit quota availability; validation requirement; Sonnet status; Gemini status; test source; deployment approval status; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-07; measurement versus assumption=explicit | Unavailable — rate limit quota availability is a frozen fixture pending exact identity, configuration, and denominator joins. | UNTESTED — assumption cannot establish a verdict |
batch60-claude-sonnet-5-vs-gemini-3-1-pro-m3-r6untested baseline model | pair=claude-sonnet-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-sonnet-5,gemini-3.1-pro; scenario=untested baseline model; validation requirement; Sonnet status; Gemini status; test source; deployment approval status; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-07; measurement versus assumption=explicit | Unavailable — untested baseline model is a frozen fixture pending exact identity, configuration, and denominator joins. | UNTESTED — assumption cannot establish a verdict |
First-party provenance: Anthropic Claude model documentation; 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-sonnet-5-vs-gemini-3-1-pro Batch 60 scenario →
How do Claude Sonnet 5 and Gemini 3.1 Pro compare on specs?
| Claude Sonnet 5 | Gemini 3.1 Pro | |
|---|---|---|
| Price (input) | $2.00/M | $2.00/M |
| Price (output) | $10.00/M ✓ | $12.00/M |
| Blended price | $4.00/M ✓ | $4.50/M |
| Context window | 500,000 tokens | 2,000,000 tokens ✓ |
| Max output | 64,000 tokens | 64,000 tokens |
| Modalities | text, vision | text, vision, audio |
| Reasoning mode | Yes | Yes |
| Released | 2026-06 | 2026-02 |
| Speed | Not measured | 55 t/s |
How much do Claude Sonnet 5 and Gemini 3.1 Pro cost at scale?
| Tokens / month | Claude Sonnet 5 | Gemini 3.1 Pro | Delta |
|---|---|---|---|
| 1,000,000 | $4.00 | $4.50 | $0.50 (1.1×) |
| 10,000,000 | $40.00 | $45.00 | $5.00 (1.1×) |
| 100,000,000 | $400.00 | $450.00 | $50.00 (1.1×) |
Choose Claude Sonnet 5 if…
- ✓Frontier intelligence at Sonnet economics
- ✓Fast interactive coding performance
- ✓Reliable structured output and extended thinking
- ✓Production workloads that need near-Opus quality with better speed and cost.
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 Sonnet 5 and Gemini 3.1 Pro side by side and see the outputs yourself.
Try Claude Sonnet 5 vs Gemini 3.1 Pro FreeWhat are common questions about Claude Sonnet 5 and Gemini 3.1 Pro?
Is Claude Sonnet 5 cheaper than Gemini 3.1 Pro?
Claude Sonnet 5 is cheaper, at $4.00 per million blended tokens vs $4.50 for Gemini 3.1 Pro.
Which has the bigger context window, Claude Sonnet 5 or Gemini 3.1 Pro?
Gemini 3.1 Pro has the larger context window: 2,000,000 tokens vs 500,000.
Can Claude Sonnet 5 replace Gemini 3.1 Pro for coding?
Both are viable for coding. Frontier intelligence at Sonnet economics (Claude Sonnet 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.
Neither of these? See Claude Sonnet 5 alternatives or Gemini 3.1 Pro alternatives.
What related comparisons help choose between Claude Sonnet 5 and Gemini 3.1 Pro?
Claude Sonnet 5 pricingGemini 3.1 Pro pricingvs DeepSeek V4 Provs Grok 4.3vs Claude Opus 4.8vs Claude Fable 5Premium model tests
Pricing verified 2026-04-06. Specs verified 2026-08-14.