Compare Claude Opus 4.8 and DeepSeek V4 Pro for reasoning workloads
Claude Opus 4.8 vs DeepSeek V4 Pro: which should I use?
Choose between Claude Opus 4.8 and DeepSeek V4 Pro by evaluating vision needs (Opus supported, DeepSeek text-only), context depth (500K vs 1M), and token economics where DeepSeek offers extreme value while Opus provides enterprise compliance. Verified 2026-09-07.
Verified 2026-09-07
Where can you find price, speed, and task evidence for Claude Opus 4.8 and DeepSeek V4 Pro?
Which tasks fit Claude Opus 4.8 and DeepSeek V4 Pro?
Best-fit task signals from the published model strengths; this is not a substitute for a controlled benchmark.
| Fact | Claude Opus 4.8 | DeepSeek V4 Pro |
|---|---|---|
| Best fit | Complex, multi-step tasks where Fable 5’s premium isn’t justified. | Rigorous math, proofs, and hard algorithmic problems on a budget. |
| Reasoning mode | Available | Available |
What does a Coding Agent workload cost with Claude Opus 4.8 and DeepSeek V4 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 Opus 4.8 | DeepSeek V4 Pro |
|---|---|---|
| Coding Agent / task | $0.15 (modeled) | $0.03 (modeled) (winner) |
| Input / output rate | $5.00 / $25.00 per M | $1.32 / $3.96 per M |
How fast are Claude Opus 4.8 and DeepSeek V4 Pro?
Only non-estimated benchmark results are shown as measured.
| Fact | Claude Opus 4.8 | DeepSeek V4 Pro |
|---|---|---|
| Measured throughput | 58 tokens/s | 68 tokens/s (winner) |
| Time to first token | 470 ms | 480 ms |
How compatible are Claude Opus 4.8 and DeepSeek V4 Pro with APIs?
Provider-level wire-format and SDK facts; model-specific parameter differences may still apply.
| Fact | Claude Opus 4.8 | DeepSeek V4 Pro |
|---|---|---|
| OpenAI SDK | Not drop-in | Usable |
| Request shape | Messages API — system prompt is a top-level field, not a message role, and max_tokens is required on every call. | OpenAI-compatible chat/completions; set model to a deepseek-* id and point base_url at api.deepseek.com. |
| Streaming | SSE (Anthropic content-block events) | SSE (OpenAI delta) |
What are the privacy and retention policies for Claude Opus 4.8 and DeepSeek V4 Pro?
Provider policy and residency facts from the verified provider registry. A missing retention policy is not treated as a guarantee.
| Fact | Claude Opus 4.8 | DeepSeek V4 Pro |
|---|---|---|
| Provider says API data trains models | No | Unavailable |
| Published retention period | Unavailable | Unavailable |
| Data residency | Unavailable | Unavailable |
How much effort does it take to migrate between Claude Opus 4.8 and DeepSeek V4 Pro?
Direction is from each displayed model to the other. Effort is derived from provider compatibility and published parameter maps.
| Fact | Claude Opus 4.8 | DeepSeek V4 Pro |
|---|---|---|
| Move Claude Opus 4.8 → DeepSeek V4 Pro | config; 3 breaking parameter differences | Target: DeepSeek V4 Pro |
| Move DeepSeek V4 Pro → Claude Opus 4.8 | Source: DeepSeek V4 Pro | code-change; 3 breaking parameter differences |
| Why | Keep the `openai` SDK; change `baseURL` and the API key. | Messages API — system prompt is a top-level field, not a message role, and max_tokens is required on every call. |
Claude Opus 4.8 vs DeepSeek V4 Pro hard-gate router
Formula: a side is ranked only if every required gate passes: modality, input ≤ contextWindow, output ≤ maxOutput.
| Gate | Claude Opus 4.8 | DeepSeek V4 Pro |
|---|---|---|
| Vision required | Pass | Exclude |
| 500K / 750K / 1M input + 64K output | Eligible / Excluded / Excluded | Eligible / Eligible / Eligible |
| 64K / 128K / 384K output at 100K input | Eligible / Excluded / Excluded | Eligible / Eligible / Eligible |
Verified 2026-06-07. Pricing provenance: Claude Opus 4.8 pricing (2026-06-07); DeepSeek V4 Pro pricing (2026-08-14). Capability: Claude Opus 4.8; DeepSeek V4 Pro. Provider: Anthropic; DeepSeek. Missing evidence is Unavailable, never inferred.
Claude Opus 4.8 vs DeepSeek V4 Pro evidence-compatibility audit
Join key: exact modelId + exact suite slug. Premium and cheap suites are separate samples; no cross-suite score is calculated.
| Evidence | Claude Opus 4.8 | DeepSeek V4 Pro |
|---|---|---|
| Premium constraint puzzle | 100/100; 246 in / 985 out; 10119 ms; $0.025855; run 2026-06-21T00:00:00.000Z | Unavailable |
| Cheap code test | Unavailable | 82/100; 64 in / 207 out; 2336 ms; $0.000208; run 2026-06-16T20:31:30.728Z |
| Run source / date | PREMIUM_TEST_SUITE (2026-06-21T00:00:00.000Z) | SEO_TEST_SUITE (2026-06-16T20:31:30.728Z) |
| Cross-suite accuracy | Unavailable | Unavailable |
| Required retest | Same prompt + grader + date | Same prompt + grader + date |
Verified 2026-06-07. Pricing provenance: Claude Opus 4.8 pricing (2026-06-07); DeepSeek V4 Pro pricing (2026-08-14). Capability: Claude Opus 4.8; DeepSeek V4 Pro. Provider: Anthropic; DeepSeek. Missing evidence is Unavailable, never inferred.
Claude Opus 4.8 vs DeepSeek V4 Pro reasoning-governance crossover
Formula: accepted-result cost = base token bill ÷ (1 − measured retry rate); visible reasoning, retention, and SLA gates fail closed until explicitly documented.
| Field | Claude Opus 4.8 | DeepSeek V4 Pro |
|---|---|---|
| Reasoning control | Provider control required | Provider control required |
| Visible chain-of-thought handling | Provider-controlled reasoning; expose only final answer/tool trace | Visible chain-of-thought: governance policy required; do not retain or expose raw reasoning by default; redact before logs |
| Token bill: 50K in / 8K out | $0.450000 | $0.097680 |
| Retry rate / acceptance | Measured retry rate required; fail closed if missing | Measured retry rate required; fail closed if missing |
| Retention / SLA | Unavailable / Published | Unavailable / Unavailable |
| Retention/SLA gate | Fail retention/SLA: required evidence missing | |
| Crossover formula | base ÷ (1 − retry); Δbill ÷ measured uplift | base ÷ (1 − retry); Δbill ÷ measured uplift |
Verified 2026-06-07. Pricing provenance: Claude Opus 4.8 pricing (2026-06-07); DeepSeek V4 Pro pricing (2026-08-14). Capability: Claude Opus 4.8; DeepSeek V4 Pro. Provider: Anthropic; DeepSeek. Missing evidence is Unavailable, never inferred.
Batch 60 · exact-pair decision contributions · verified 2026-09-07
Exact pair boundary: Anthropic / DeepSeek; model endpoint, vision requirement, context fit (500K vs 1M), off-peak rates, and visible CoT must join. Requested models are claude-opus-4-8 and deepseek-v4-pro. Provider, rate, pricing, and task pages remain fact owners.
Hard-gate capability and modality router
Frozen Batch 60 scenario board. Formula / deterministic rule: route = vision_required ? Opus : (context > 500K ? DeepSeek : PriceEvaluated); text-only excluded from vision Boundary: Owns modality and context hard-gating before cost ranking.
| Frozen scenario / field ID | Pair, identity, host, surface, and evidence fields | Result | State |
|---|---|---|---|
batch60-claude-opus-4-8-vs-deepseek-v4-pro-m1-r1vision document analysis | pair=claude-opus-4-8 vs deepseek-v4-pro; provider=Anthropic / DeepSeek; hostA=api.anthropic.com; hostB=api.deepseek.com; surfaceA=Messages API; surfaceB=DeepSeek API; requested/effective IDs=claude-opus-4-8,deepseek-v4-pro; scenario=vision document analysis; workload requirements; vision needed; token length; Opus eligibility; DeepSeek eligibility; hard gate decision; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-07; measurement versus assumption=explicit | Unavailable — vision document analysis is a frozen fixture pending exact identity, configuration, and denominator joins. | UNTESTED — assumption cannot establish a verdict |
batch60-claude-opus-4-8-vs-deepseek-v4-pro-m1-r2multimodal chart QA | pair=claude-opus-4-8 vs deepseek-v4-pro; provider=Anthropic / DeepSeek; hostA=api.anthropic.com; hostB=api.deepseek.com; surfaceA=Messages API; surfaceB=DeepSeek API; requested/effective IDs=claude-opus-4-8,deepseek-v4-pro; scenario=multimodal chart QA; workload requirements; vision needed; token length; Opus eligibility; DeepSeek eligibility; hard gate decision; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-07; measurement versus assumption=explicit | Unavailable — multimodal chart QA is a frozen fixture pending exact identity, configuration, and denominator joins. | UNTESTED — assumption cannot establish a verdict |
batch60-claude-opus-4-8-vs-deepseek-v4-pro-m1-r3300K text reasoning | pair=claude-opus-4-8 vs deepseek-v4-pro; provider=Anthropic / DeepSeek; hostA=api.anthropic.com; hostB=api.deepseek.com; surfaceA=Messages API; surfaceB=DeepSeek API; requested/effective IDs=claude-opus-4-8,deepseek-v4-pro; scenario=300K text reasoning; workload requirements; vision needed; token length; Opus eligibility; DeepSeek eligibility; hard gate decision; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-07; measurement versus assumption=explicit | Unavailable — 300K text reasoning is a frozen fixture pending exact identity, configuration, and denominator joins. | UNTESTED — assumption cannot establish a verdict |
batch60-claude-opus-4-8-vs-deepseek-v4-pro-m1-r4750K long document | pair=claude-opus-4-8 vs deepseek-v4-pro; provider=Anthropic / DeepSeek; hostA=api.anthropic.com; hostB=api.deepseek.com; surfaceA=Messages API; surfaceB=DeepSeek API; requested/effective IDs=claude-opus-4-8,deepseek-v4-pro; scenario=750K long document; workload requirements; vision needed; token length; Opus eligibility; DeepSeek eligibility; hard gate decision; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-07; measurement versus assumption=explicit | Unavailable — 750K long document is a frozen fixture pending exact identity, configuration, and denominator joins. | UNTESTED — assumption cannot establish a verdict |
batch60-claude-opus-4-8-vs-deepseek-v4-pro-m1-r51M maximum context | pair=claude-opus-4-8 vs deepseek-v4-pro; provider=Anthropic / DeepSeek; hostA=api.anthropic.com; hostB=api.deepseek.com; surfaceA=Messages API; surfaceB=DeepSeek API; requested/effective IDs=claude-opus-4-8,deepseek-v4-pro; scenario=1M maximum context; workload requirements; vision needed; token length; Opus eligibility; DeepSeek eligibility; hard gate decision; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-07; measurement versus assumption=explicit | Unavailable — 1M maximum context is a frozen fixture pending exact identity, configuration, and denominator joins. | UNTESTED — assumption cannot establish a verdict |
batch60-claude-opus-4-8-vs-deepseek-v4-pro-m1-r6unsupported modality | pair=claude-opus-4-8 vs deepseek-v4-pro; provider=Anthropic / DeepSeek; hostA=api.anthropic.com; hostB=api.deepseek.com; surfaceA=Messages API; surfaceB=DeepSeek API; requested/effective IDs=claude-opus-4-8,deepseek-v4-pro; scenario=unsupported modality; workload requirements; vision needed; token length; Opus eligibility; DeepSeek eligibility; hard gate decision; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-07; measurement versus assumption=explicit | Unavailable — unsupported modality has no matched, dated bilateral observation. | FAIL CLOSED — manual, probe, or source evidence required |
First-party provenance: Anthropic Claude model documentation; verification date 2026-09-07. Missing or conflicting joins fail closed.
Test-suite evidence compatibility audit
Frozen Batch 60 scenario board. Formula / deterministic rule: comparable = matched_prompt && identical_evaluator && verified_timestamp; cross-suite score comparison => Untested Boundary: Owns evidence discipline separating cheap-test from premium-test runs.
| Frozen scenario / field ID | Pair, identity, host, surface, and evidence fields | Result | State |
|---|---|---|---|
batch60-claude-opus-4-8-vs-deepseek-v4-pro-m2-r1Fibonacci coding benchmark | pair=claude-opus-4-8 vs deepseek-v4-pro; provider=Anthropic / DeepSeek; hostA=api.anthropic.com; hostB=api.deepseek.com; surfaceA=Messages API; surfaceB=DeepSeek API; requested/effective IDs=claude-opus-4-8,deepseek-v4-pro; scenario=Fibonacci coding benchmark; test prompt; evaluator type; Opus result; DeepSeek result; comparability status; synthesis caveat; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-07; measurement versus assumption=explicit | Unavailable — Fibonacci coding benchmark is a frozen fixture pending exact identity, configuration, and denominator joins. | UNTESTED — assumption cannot establish a verdict |
batch60-claude-opus-4-8-vs-deepseek-v4-pro-m2-r2API explainer test | pair=claude-opus-4-8 vs deepseek-v4-pro; provider=Anthropic / DeepSeek; hostA=api.anthropic.com; hostB=api.deepseek.com; surfaceA=Messages API; surfaceB=DeepSeek API; requested/effective IDs=claude-opus-4-8,deepseek-v4-pro; scenario=API explainer test; test prompt; evaluator type; Opus result; DeepSeek result; comparability status; synthesis caveat; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-07; measurement versus assumption=explicit | Unavailable — API explainer test is a frozen fixture pending exact identity, configuration, and denominator joins. | UNTESTED — assumption cannot establish a verdict |
batch60-claude-opus-4-8-vs-deepseek-v4-pro-m2-r3structured extraction test | pair=claude-opus-4-8 vs deepseek-v4-pro; provider=Anthropic / DeepSeek; hostA=api.anthropic.com; hostB=api.deepseek.com; surfaceA=Messages API; surfaceB=DeepSeek API; requested/effective IDs=claude-opus-4-8,deepseek-v4-pro; scenario=structured extraction test; test prompt; evaluator type; Opus result; DeepSeek result; comparability status; synthesis caveat; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-07; measurement versus assumption=explicit | Unavailable — structured extraction test is a frozen fixture pending exact identity, configuration, and denominator joins. | UNTESTED — assumption cannot establish a verdict |
batch60-claude-opus-4-8-vs-deepseek-v4-pro-m2-r4constraint logic puzzle | pair=claude-opus-4-8 vs deepseek-v4-pro; provider=Anthropic / DeepSeek; hostA=api.anthropic.com; hostB=api.deepseek.com; surfaceA=Messages API; surfaceB=DeepSeek API; requested/effective IDs=claude-opus-4-8,deepseek-v4-pro; scenario=constraint logic puzzle; test prompt; evaluator type; Opus result; DeepSeek result; comparability status; synthesis caveat; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-07; measurement versus assumption=explicit | Unavailable — constraint logic puzzle is a frozen fixture pending exact identity, configuration, and denominator joins. | UNTESTED — assumption cannot establish a verdict |
batch60-claude-opus-4-8-vs-deepseek-v4-pro-m2-r5median sorted arrays | pair=claude-opus-4-8 vs deepseek-v4-pro; provider=Anthropic / DeepSeek; hostA=api.anthropic.com; hostB=api.deepseek.com; surfaceA=Messages API; surfaceB=DeepSeek API; requested/effective IDs=claude-opus-4-8,deepseek-v4-pro; scenario=median sorted arrays; test prompt; evaluator type; Opus result; DeepSeek result; comparability status; synthesis caveat; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-07; measurement versus assumption=explicit | Unavailable — median sorted arrays is a frozen fixture pending exact identity, configuration, and denominator joins. | UNTESTED — assumption cannot establish a verdict |
batch60-claude-opus-4-8-vs-deepseek-v4-pro-m2-r6unmatched benchmark prompt | pair=claude-opus-4-8 vs deepseek-v4-pro; provider=Anthropic / DeepSeek; hostA=api.anthropic.com; hostB=api.deepseek.com; surfaceA=Messages API; surfaceB=DeepSeek API; requested/effective IDs=claude-opus-4-8,deepseek-v4-pro; scenario=unmatched benchmark prompt; test prompt; evaluator type; Opus result; DeepSeek result; comparability status; synthesis caveat; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-07; measurement versus assumption=explicit | Unavailable — unmatched benchmark prompt is a frozen fixture pending exact identity, configuration, and denominator joins. | UNTESTED — assumption cannot establish a verdict |
First-party provenance: DeepSeek API documentation; verification date 2026-09-07. Missing or conflicting joins fail closed.
Reasoning governance and retry crossover board
Frozen Batch 60 scenario board. Formula / deterministic rule: crossover = opus_accuracy - deepseek_accuracy > break_even_delta; visible CoT handling required Boundary: Owns economic modeling of reasoning accuracy vs retry overhead.
| Frozen scenario / field ID | Pair, identity, host, surface, and evidence fields | Result | State |
|---|---|---|---|
batch60-claude-opus-4-8-vs-deepseek-v4-pro-m3-r1zero-retry perfect run | pair=claude-opus-4-8 vs deepseek-v4-pro; provider=Anthropic / DeepSeek; hostA=api.anthropic.com; hostB=api.deepseek.com; surfaceA=Messages API; surfaceB=DeepSeek API; requested/effective IDs=claude-opus-4-8,deepseek-v4-pro; scenario=zero-retry perfect run; retry frequency; standard rate spend; off-peak rate spend; Opus spend; break-even requirement; governance rule; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-07; measurement versus assumption=explicit | Unavailable — zero-retry perfect run is a frozen fixture pending exact identity, configuration, and denominator joins. | UNTESTED — assumption cannot establish a verdict |
batch60-claude-opus-4-8-vs-deepseek-v4-pro-m3-r210% retry rate | pair=claude-opus-4-8 vs deepseek-v4-pro; provider=Anthropic / DeepSeek; hostA=api.anthropic.com; hostB=api.deepseek.com; surfaceA=Messages API; surfaceB=DeepSeek API; requested/effective IDs=claude-opus-4-8,deepseek-v4-pro; scenario=10% retry rate; retry frequency; standard rate spend; off-peak rate spend; Opus spend; break-even requirement; governance rule; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-07; measurement versus assumption=explicit | Unavailable — 10% retry rate is a frozen fixture pending exact identity, configuration, and denominator joins. | UNTESTED — assumption cannot establish a verdict |
batch60-claude-opus-4-8-vs-deepseek-v4-pro-m3-r325% retry rate | pair=claude-opus-4-8 vs deepseek-v4-pro; provider=Anthropic / DeepSeek; hostA=api.anthropic.com; hostB=api.deepseek.com; surfaceA=Messages API; surfaceB=DeepSeek API; requested/effective IDs=claude-opus-4-8,deepseek-v4-pro; scenario=25% retry rate; retry frequency; standard rate spend; off-peak rate spend; Opus spend; break-even requirement; governance rule; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-07; measurement versus assumption=explicit | Unavailable — 25% retry rate is a frozen fixture pending exact identity, configuration, and denominator joins. | UNTESTED — assumption cannot establish a verdict |
batch60-claude-opus-4-8-vs-deepseek-v4-pro-m3-r450% complex debugging retry | pair=claude-opus-4-8 vs deepseek-v4-pro; provider=Anthropic / DeepSeek; hostA=api.anthropic.com; hostB=api.deepseek.com; surfaceA=Messages API; surfaceB=DeepSeek API; requested/effective IDs=claude-opus-4-8,deepseek-v4-pro; scenario=50% complex debugging retry; retry frequency; standard rate spend; off-peak rate spend; Opus spend; break-even requirement; governance rule; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-07; measurement versus assumption=explicit | Unavailable — 50% complex debugging retry is a frozen fixture pending exact identity, configuration, and denominator joins. | UNTESTED — assumption cannot establish a verdict |
batch60-claude-opus-4-8-vs-deepseek-v4-pro-m3-r5visible CoT compliance check | pair=claude-opus-4-8 vs deepseek-v4-pro; provider=Anthropic / DeepSeek; hostA=api.anthropic.com; hostB=api.deepseek.com; surfaceA=Messages API; surfaceB=DeepSeek API; requested/effective IDs=claude-opus-4-8,deepseek-v4-pro; scenario=visible CoT compliance check; retry frequency; standard rate spend; off-peak rate spend; Opus spend; break-even requirement; governance rule; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-07; measurement versus assumption=explicit | Unavailable — visible CoT compliance check is a frozen fixture pending exact identity, configuration, and denominator joins. | UNTESTED — assumption cannot establish a verdict |
batch60-claude-opus-4-8-vs-deepseek-v4-pro-m3-r6unsupported retention policy | pair=claude-opus-4-8 vs deepseek-v4-pro; provider=Anthropic / DeepSeek; hostA=api.anthropic.com; hostB=api.deepseek.com; surfaceA=Messages API; surfaceB=DeepSeek API; requested/effective IDs=claude-opus-4-8,deepseek-v4-pro; scenario=unsupported retention policy; retry frequency; standard rate spend; off-peak rate spend; Opus spend; break-even requirement; governance rule; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-07; measurement versus assumption=explicit | Unavailable — unsupported retention policy has no matched, dated bilateral observation. | FAIL CLOSED — manual, probe, or source evidence required |
First-party provenance: DeepSeek API pricing; 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-opus-4-8-vs-deepseek-v4-pro Batch 60 scenario →
How do Claude Opus 4.8 and DeepSeek V4 Pro compare on specs?
| Claude Opus 4.8 | DeepSeek V4 Pro | |
|---|---|---|
| Price (input) | $5.00/M | $1.32/M ✓ |
| Price (output) | $25.00/M | $3.96/M ✓ |
| Blended price | $10.00/M | $1.98/M ✓ |
| Context window | 500,000 tokens | 1,000,000 tokens ✓ |
| Max output | 64,000 tokens | 384,000 tokens ✓ |
| Modalities | text, vision | text |
| Reasoning mode | Yes | Yes |
| Released | 2026-04 | 2026-05 |
| Speed | 58 t/s | 68 t/s ✓ |
How much do Claude Opus 4.8 and DeepSeek V4 Pro cost at scale?
| Tokens / month | Claude Opus 4.8 | DeepSeek V4 Pro | Delta |
|---|---|---|---|
| 1,000,000 | $10.00 | $1.98 | $8.02 (5.1×) |
| 10,000,000 | $100.00 | $19.80 | $80.20 (5.1×) |
| 100,000,000 | $1000.00 | $198.00 | $802.00 (5.1×) |
Choose Claude Opus 4.8 if…
- ✓Elite coding and multi-step reasoning
- ✓Strong instruction following on ambiguous prompts
- ✓Extended-thinking mode
- ✓Complex, multi-step tasks where Fable 5’s premium isn’t justified.
Choose DeepSeek V4 Pro if…
- ✓Thinking mode with visible chain-of-thought
- ✓Frontier-level math and competition coding
- ✓Still far cheaper than closed frontier models
- ✓Rigorous math, proofs, and hard algorithmic problems on a budget.
Run this exact matchup right now
Send the same prompt to Claude Opus 4.8 and DeepSeek V4 Pro side by side and see the outputs yourself.
Try Claude Opus 4.8 vs DeepSeek V4 Pro FreeWhat are common questions about Claude Opus 4.8 and DeepSeek V4 Pro?
Is Claude Opus 4.8 cheaper than DeepSeek V4 Pro?
DeepSeek V4 Pro is cheaper, at $1.98 per million blended tokens vs $10.00 for Claude Opus 4.8.
Which has the bigger context window, Claude Opus 4.8 or DeepSeek V4 Pro?
DeepSeek V4 Pro has the larger context window: 1,000,000 tokens vs 500,000.
Can Claude Opus 4.8 replace DeepSeek V4 Pro for coding?
Both are viable for coding. Elite coding and multi-step reasoning (Claude Opus 4.8) vs Thinking mode with visible chain-of-thought (DeepSeek V4 Pro) — pick based on which strength matters more for your workload.
Which is faster, Claude Opus 4.8 or DeepSeek V4 Pro?
DeepSeek V4 Pro is faster: 68 t/s vs 58 t/s, measured on our speed benchmarks.
Neither of these? See Claude Opus 4.8 alternatives or DeepSeek V4 Pro alternatives.
What related comparisons help choose between Claude Opus 4.8 and DeepSeek V4 Pro?
Claude Opus 4.8 pricingDeepSeek V4 Pro pricingvs Claude Opus 4vs Gemini 3.1 Provs Gemini 3.7 Flashvs GPT-5.6 SolPremium model tests
Pricing verified 2026-06-07. Specs verified 2026-08-14.