BenchLeader

Claude Opus 5 vs DeepSeek V4 Pro

Full profiles: Claude Opus 5 (Anthropic) and DeepSeek V4 Pro (DeepSeek): every benchmark, price and rank.

Updated · Data from 12 sources

As of 26 Oct 2026, Claude Opus 5 (max) leads on quality (68.8 vs 60.8 on the BenchLeader Index), but DeepSeek V4 Pro (max) costs 5.1× less, so it is the better buy unless you need the extra quality. Claude Opus 5 leads in every category we measure both in.

Which to pick for…

The pick's numbers come first. Category scores on the BenchLeader scale (50 is the average model, 15 points one standard deviation). High confidence means a lead of half a standard deviation or more; under one point is called either.

Use casePickWhyConfidence
CodingClaude Opus 570 vs 58 category score; SciCode 56.4% vs 51.0%High
Agents & tool useClaude Opus 564 vs 60 category score; τ³-Banking (AA) 42.1% vs 39.6%Medium
MathsClaude Opus 571 vs 56 category score; FrontierMath Tiers 1–3 85.6% vs 64.6%High
ReasoningClaude Opus 574 vs 65 category score; GPQA Diamond 93.9% vs 91.7%High
KnowledgeClaude Opus 572 vs 60 category score; SimpleQA Verified 59.9% vs 52.9%High
Long documentsEither65 vs 65 category score; AA-LCR 79.3% vs 80.3%Either
Chat quality (human preference)–Only Claude Opus 5 has an Arena rating (69 category score)Not comparable
Lowest costDeepSeek V4 Pro$1.98 vs $10.00 per 1M blended; agentic coding session $0.095 vs $0.400–
Fastest first answerDeepSeek V4 Pro21.7 s (DeepSeek V4 Pro (max)) vs 68.7 s (Claude Opus 5 (max)) to the first answer token–
High volume on a budgetNeither flagshipA smaller model is usually the better fit: Cheapest good LLMs, Fastest LLMs–

Key differences

  • Claude Opus 5 (max) leads on quality: 68.8 vs 60.8.
  • Claude Opus 5 (max) is stronger in agents & tools, coding, composite, human preference, knowledge, maths, multimodal, reasoning.
  • DeepSeek V4 Pro (max) is stronger in long context.
  • DeepSeek V4 Pro (max) is 5.1× cheaper ($1.98 vs $10.00 per 1M blended).
  • DeepSeek V4 Pro (max) streams 2.0× faster (100 vs 51 tokens per second).

At a glance

SpecClaude Opus 5DeepSeek V4 Pro
DeveloperAnthropicDeepSeek
Released24 Jul 202613 Aug 2026
Context window (tokens)1,000,0001,048,576
Compared atClaude Opus 5 (max)DeepSeek V4 Pro (max)
Open weightsNoYes
Price in / out / cached input per 1M$5.00 / $25.00 / $0.500$1.32 / $3.96 / $0.022

Category by category

Category scores on the BenchLeader scale: 50 is the average evaluated model, 15 points is one standard deviation. A gap under one point is called level.

CategoryClaude Opus 5 (max)DeepSeek V4 Pro (max)Leader
Reasoning74.165.1Claude Opus 5
Coding70.258.3Claude Opus 5
Agents & tools64.360.2Claude Opus 5
Maths70.656.1Claude Opus 5
Knowledge71.659.6Claude Opus 5
Human preference68.5–not comparable
Multimodal67.9–not comparable
Long context64.765.2level
Composite86.369.8Claude Opus 5

Where sources disagree

Across the 29 benchmarks both have, Claude Opus 5 leads 25, DeepSeek V4 Pro leads 4. Every overall index that rates both puts Claude Opus 5 ahead.

Overall indexClaude Opus 5 (max)DeepSeek V4 Pro (max)Leader
BenchLeader Index68.860.8Claude Opus 5
AA Intelligence Index v4.3.250.836Claude Opus 5
Arena Text14911465†Claude Opus 5

Each publisher runs its own tasks, harnesses and effort settings, so their overall verdicts can differ; BenchLeader reconciles them on one scale. † measured at another effort setting of the same model (the publisher did not test the one compared here).

Price, speed and latency

List prices blended at three input tokens per output token. Per-task prices use the token counts on the methodology page; suite cost is what Artificial Analysis paid to run its whole Intelligence Index.

MeasureClaude Opus 5 (max)DeepSeek V4 Pro (max)
Blended price per 1M tokens$10.00$1.98
Input / output per 1M$5.00 / $25.00$1.32 / $3.96
Cached input per 1M$0.500$0.022
Price per task: chat reply$0.0095$0.0017
Price per task: summarize a 30-page report$0.075$0.018
Price per task: code edit$0.068$0.014
Price per task: agentic coding session$0.400$0.095
Price per task: structured extraction$0.015$0.0034
Cost to run a full benchmark suite$5.86$0.674
Output speed51 tok/s100 tok/s
Time to first answer68.7 s21.7 s
Time to a complete answer78.4 s26.7 s

Per token is not per task: on Artificial Analysis' full suite Claude Opus 5 (max) cost $5.86 and DeepSeek V4 Pro (max) $0.674, because Claude Opus 5 (max) used about 1.7× as many tokens for the same work, which a per-token price hides.

Each model is compared at its best-ranked reasoning-effort setting. Claude Opus 5 (max) scores 68.8 and takes 69 s to its first answer token; Claude Opus 5 (high) scores 67.9 in 17 s, Claude Opus 5 (xhigh) scores 67.4 in 31 s. DeepSeek V4 Pro (max) scores 60.8 and takes 22 s to its first answer token; DeepSeek V4 Pro (high) scores 57.5 in 1 s, DeepSeek V4 Pro scores 53.4 in 1 s. Higher effort means more thinking before the answer: better scores, longer waits and more tokens billed. How reasoning effort changes scores and cost.

Every benchmark

141 benchmarks, grouped by category; each name links to the board and its leaders. † measured at another effort setting of the same model, shown for reference and not counted as a win.

MetricPublisherClaude Opus 5 (max)DeepSeek V4 Pro (max)
BenchLeader IndexBenchLeader68.860.8
Agents & tools scoreBenchLeader64.360.2
Coding scoreBenchLeader70.258.3
Composite scoreBenchLeader86.369.8
Human preference scoreBenchLeader68.5–
Knowledge scoreBenchLeader71.659.6
Long context scoreBenchLeader64.765.2
Maths scoreBenchLeader70.656.1
Multimodal scoreBenchLeader67.9–
Reasoning scoreBenchLeader74.165.1
Blended price $/MBenchLeader$10.00$1.98
Output speedBenchLeader51 tok/s100 tok/s
Time to first answerBenchLeader68.7 s21.7 s
Context windowBenchLeader1,000,000 tokens1,048,576 tokens
Reasoning
GPQA DiamondEpoch AI Benchmarking Hub93.9%91.7%
SimpleBenchSimpleBench80.6%†–
Arena Hard PromptsArena (LMArena)15151480†
LiveBench 1.0 ReasoningLiveBench91.2%85.8%†
GPQA Diamond (AA)Artificial Analysis93.2%92.8%
Humanity's Last Exam (AA)Artificial Analysis54.9%41.0%
GPQA Diamond (Vals)Vals AI93.4%†92.4%
Kagi LLM BenchmarkKagi LLM Benchmark–53.5%†
ARC-AGI-1ARC Prize97.5%90.0%
ARC-AGI-2ARC Prize90.4%61.3%
ARC-AGI-3ARC Prize30.2%†–
CritPtArtificial Analysis29.1%18.0%
MysteryMechanismVals AI37.4%†–
Chess PuzzlesEpoch AI Benchmarking Hub43.0%46.0%
Mystery Game PuzzlesEpoch AI Benchmarking Hub59.0%43.0%
CL-bench LifeEpoch AI Benchmarking Hub–13.5%†
LMCAEpoch AI Benchmarking Hub63.3%41.2%
DTBenchEpoch AI Benchmarking Hub97.6%90.7%
ForecastBenchForecastBench66.5%60.9%†
BTF-3Epoch AI Benchmarking Hub12.0%†–
Coding
SWE-bench Verified (Epoch)Epoch AI Benchmarking Hub–77.6%
SciCodeSciCode56.4%51.0%
WeirdMLWeirdML91.8%66.2%
FrontierCodeCognition53.4%28.6%†
Arena CodingArena (LMArena)15281501†
Show all 141 benchmarks
MetricPublisherClaude Opus 5 (max)DeepSeek V4 Pro (max)
Coding
Arena WebDevArena (LMArena)16911447†
LiveBench 1.0 CodingLiveBench81.5%77.2%†
LiveCodeBenchVals AI89.0%†87.5%
IOIVals AI84.3%†51.6%
SWE-bench (Vals)Vals AI97.0%†96.4%
Code MigrationVals AI57.5%†41.5%
Code Migration v1.1Vals AI–52.0%
ProgramBenchVals AI3.0%†0.0%
Vibe Code Bench 1-100Vals AI28.5%†17.5%
Vibe Code Bench v1.1Vals AI88.4%†82.3%
SWE Atlas: Codebase QnAScale AI SEAL63.2%†27.1%†
SWE Atlas: Test WritingScale AI SEAL62.2%†27.1%†
Surface Evolver BenchEpoch AI Benchmarking Hub–40.0%†
DeepSWE v1.1Epoch AI Benchmarking Hub73.7%–
CursorBenchCursor46.6%–
ALE-BenchEpoch AI Benchmarking Hub2164.6†1403.2
FrontierSWEEpoch AI Benchmarking Hub52.0%–
Terminal-Bench 4.0 (AA)Artificial Analysis49.0%14.1%
Terminal-Bench 2.1 (AA)Artificial Analysis89.1%78.7%
Startrise FrontendStartrise82.3%†62.7%†
FrontierCode 1.1 (AA)Artificial Analysis–38.8%
Agents & tools
Terminal-BenchTerminal-Bench51.8%–
OSWorld-Verified 2.0OSWorld31.4%–
APEX-AgentsMercor65.8%47.3%†
Arena AgentArena (LMArena)8.2-0.3†
LiveBench Agentic CodingLiveBench65.2%55.0%†
Terminal-Bench 2.1 (Vals)Vals AI84.6%†54.7%
MCP AtlasScale AI SEAL85.8%†–
HiL-BenchScale AI SEAL57.0%†38.5%†
τ³-bench Bankingτ²-bench48.7%–
GDPval-AA v2.1Artificial Analysis–47.5%
τ³-Banking (AA)Artificial Analysis42.1%39.6%
Analyst Agent (AA)Artificial Analysis53.8%–
CUA-benchVals AI9.0%–
CyberBenchVals AI65.4%†72.9%
Finance Agent v2Vals AI58.6%†50.4%
Finance Agent v2.1Vals AI–57.1%
Harvey's Legal Agent Benchmark v1.1Vals AI–10.8%
Harvey's Legal Agent Benchmark v1Vals AI6.7%†7.5%
Legal Research BenchVals AI55.3%†40.9%
SkillsBenchVals AI60.4%†53.8%
SREBenchVals AI12.2%†1.9%
Tax Agent BenchVals AI45.5%†26.8%
Terminal-Bench 2.0 (Vals)Vals AI–56.2%†
Terminal-Bench 4.0 (Vals)Vals AI53.5%†14.1%
Terminal-Bench ScienceVals AI27.1%†4.3%
Time Horizon Index: KSPVals AI18.8%†–
Arena SearchArena (LMArena)1214†–
BALROGBALROG63.4%–
PostTrainBenchEpoch AI Benchmarking Hub35.0%†–
GBAEvalEpoch AI Benchmarking Hub79.6%†–
Vending-Bench 2Andon Labs11181.9†3284.5†
AutomationBenchArtificial Analysis56.6%56.7%
GDP.pdf (AA)Artificial Analysis21.6%11.4%
EnterpriseOps-GymArtificial Analysis47.5%49.6%
AA-Briefcase v1.1Artificial Analysis16571256
Terminal-Bench-Science 0.1 (AA)Artificial Analysis28.6%5.7%
DeepSec-Bench (AA)Artificial Analysis25.9%–
FACTS SearchGoogle85.3%†–
Maths
FrontierMath Tiers 1–3Epoch AI Benchmarking Hub85.6%64.6%
FrontierMath Tier 4Epoch AI Benchmarking Hub73.2%26.8%
OTIS Mock AIMEEpoch AI Benchmarking Hub98.9%98.6%
ProofBenchVals AI99.0%16.0%
LiveBench MathematicsLiveBench95.7%95.1%†
AIME 2026MathArena–96.7%
HMMT February 2026MathArena–93.9%
USAMO 2026MathArena–60.7%
MathArena ApexMathArena–28.1%
Arena MathsArena (LMArena)15171444†
Knowledge
SimpleQA VerifiedEpoch AI Benchmarking Hub59.9%52.9%
LiveBench 1.0 Data AnalysisLiveBench74.5%79.2%†
AA-OmniscienceArtificial Analysis37.10.8
MMLU-ProVals AI91.6%†87.3%
LegalBenchVals AI87.0%†82.4%
CorpFinVals AI73.2%†65.4%
TaxEvalVals AI75.1%†73.1%
BioMysteryBenchVals AI79.3%†–
CaseLaw v2Vals AI–59.4%
Excel Modeling BenchmarkVals AI73.6%†52.8%
Excel Modeling Benchmark v1.1Vals AI–65.1%
MedCodeVals AI63.6%†42.5%
MedScribeVals AI91.0%†80.2%
Public Benefits Bench v1.1Vals AI76.9%†62.9%
DrugDiscoveryBenchScale AI SEAL53.7%31.7%†
EBR-benchEpoch AI Benchmarking Hub45.7%–
GDP.pdfEpoch AI Benchmarking Hub24.0%–
AA-Omniscience: accuracyArtificial Analysis60.9%49.1%
AA-Omniscience: non-hallucinationArtificial Analysis39.2%5.2%
Instruction following
LiveBench LanguageLiveBench88.7%82.1%†
LiveBench Instruction FollowingLiveBench63.8%67.7%†
Arena Instruction FollowingArena (LMArena)14951453†
Human preference
Arena TextArena (LMArena)14911458†
EQ-Bench 4EQ-Bench1360†1160†
Arena Creative WritingArena (LMArena)14741446†
Arena Multi-turnArena (LMArena)14871475†
Arena Longer QueriesArena (LMArena)15031472†
Multimodal
Arena VisionArena (LMArena)1320†–
MMMU-ProArtificial Analysis84.7%–
MMMU-Pro (Vals)Vals AI89.9%†–
MortgageTaxVals AI72.1%†–
SAGEVals AI49.4%†–
Blueprint-Bench 2Epoch AI Benchmarking Hub30.4%†–
Long context
AA-LCRArtificial Analysis79.3%80.3%
Arena DocumentArena (LMArena)1490†–
MLCRArtificial Analysis11.1%–
Composite
Epoch Capabilities IndexEpoch AI Benchmarking Hub163.9†155.6†
LiveBench 1.0LiveBench80.1%77.4%†
AA Intelligence Index v4.3.2Artificial Analysis50.836
Vals IndexVals AI–53.0
Vals Finance IndexVals AI–52.9%
Vals RSI IndexVals AI33.0%–
Vals Science IndexVals AI47.9%†–
Vals Multimodal IndexVals AI73.9%†–
Vals Router IndexVals AI–53.0%†
Safety & honesty
FORTRESSScale AI SEAL16.8%†–
Metadata
AA Openness IndexArtificial Analysis–44.4

Data as of 2026-10-26. Best configuration of each model; every score links to its source on the model pages.

What changed

  • Claude Opus 5 (max): 1 new result (Vals RSI Index).
  • DeepSeek V4 Pro (max): 5 new results (Code Migration v1.1, Excel Modeling Benchmark v1.1, Finance Agent v2.1…).
  • DeepSeek V4 Pro (max): BenchLeader Index 62.6 → 60.8.
  • Claude Opus 5 (max): 1 score revision.
  • Claude Opus 5 (max): 1 new result (ForecastBench); 1 score revision.
  • DeepSeek V4 Pro (max): 1 new result (FrontierCode 1.1 (AA)); 2 score revisions.
  • Claude Opus 5 (max): BenchLeader Index 68.3 → 68.9.
  • DeepSeek V4 Pro (max): BenchLeader Index 61.0 → 62.6.
  • Claude Opus 5 (max): 4 new results (GDPval-AA v2.1, AA-Omniscience: accuracy, AA-Omniscience: non-hallucination…).
  • DeepSeek V4 Pro (max): 7 new results (USAMO 2026, IFBench, τ²-Bench Telecom (AA)…); 4 score revisions.

Rankings: Best LLM overall · Best LLM for coding · Best LLM for agents · Best cheap LLMs

Claude Opus 5 vs DeepSeek V4 Pro: questions

Is Claude Opus 5 better than DeepSeek V4 Pro?
Claude Opus 5 (max) leads on quality: 68.8 vs 60.8. The BenchLeader Index combines every independent quality benchmark; Claude Opus 5 (max) is ahead overall as of 2026-10-26, but check the category scores for your use.
Which is cheaper, Claude Opus 5 or DeepSeek V4 Pro, and will that change?
DeepSeek V4 Pro is cheaper today: $1.98 against $10.00 per million tokens, blended at three input tokens per output token. No price change has been announced for either.
Is Claude Opus 5 better than DeepSeek V4 Pro for coding?
Claude Opus 5 scores higher in coding (70 vs 58 on the category index, where 50 is average). On SciCode, the top shared coding benchmark, it is 56.4% for Claude Opus 5 against 51.0% for DeepSeek V4 Pro.
Is Claude Opus 5 better than DeepSeek V4 Pro for agents and tool use?
Claude Opus 5 scores higher in agentic tasks (64 vs 60 on the category index, where 50 is average). On τ³-Banking (AA), the top shared agents & tools benchmark, it is 42.1% for Claude Opus 5 against 39.6% for DeepSeek V4 Pro.
Which is better for long documents?
They are level on long-context benchmarks (65 vs 65). Both take about 1M tokens: Claude Opus 5 1,000,000, DeepSeek V4 Pro 1,048,576.
Which has lower latency?
DeepSeek V4 Pro (max) answers first: 21.7 s against 68.7 s to the first answer token, as Artificial Analysis measures it. Reasoning effort drives most of this: a higher setting thinks longer before it answers.
Which is faster, Claude Opus 5 or DeepSeek V4 Pro?
DeepSeek V4 Pro streams faster: 100 against 51 output tokens per second.
Do independent benchmarks agree on Claude Opus 5 vs DeepSeek V4 Pro?
Across the 29 benchmarks both have, Claude Opus 5 leads 25, DeepSeek V4 Pro leads 4. Every overall index that rates both puts Claude Opus 5 ahead.
When was DeepSeek V4 Pro released?
DeepSeek V4 Pro was released on 13 Aug 2026.