Model comparison

Claude Opus 4.8 vs DeepSeek V4 Pro

Claude Opus 4.8 is the stronger model overall, scoring 60.7 to 54.3 on the Noometry Index. DeepSeek V4 Pro costs 10× less per token, which makes it the better buy when Claude Opus 4.8's lead doesn't matter for your workload.

Last verified . 45 shared benchmarks.

Claude Opus 4.8 Anthropic

60.7

Rank #13 Confirmed

DeepSeek V4 Pro DeepSeek

54.3

Rank #31 Confirmed

Summary

  • They share 45 benchmarks with published results for both. Claude Opus 4.8 scores higher in 9 categories and DeepSeek V4 Pro in 0 categories; 7 gaps are clear of the uncertainty.
  • The widest gap is in agentic & tool use, where Claude Opus 4.8 leads 47.6 to 32.8.
  • The biggest single-benchmark swing is Surface Evolver Bench: 87.5% for Claude Opus 4.8 and 40% for DeepSeek V4 Pro.
  • DeepSeek V4 Pro is cheaper at $0.66 / $1.98 per million input/output tokens, against $5 / $25 for Claude Opus 4.8.
  • DeepSeek V4 Pro has downloadable open weights; the other is API-only.

Side by side

Claude Opus 4.8 and DeepSeek V4 Pro specifications
Claude Opus 4.8DeepSeek V4 Pro
ProviderAnthropicDeepSeek
Noometry Index60.754.3
Released2026-05-282026-04-24
WeightsProprietaryOpen
Context window1M1M
Max output128K393K
Input $ / M tokens$5$0.66
Output $ / M tokens$25$1.98
Results tracked6548

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Category by category

Coding Claude Opus 4.8 leads

Claude Opus 4.8: 59.9 (#12), DeepSeek V4 Pro: 52.4 (#34)

Coding benchmarks
BenchmarkClaude Opus 4.8DeepSeek V4 Pro
FrontierCode46.5%28.6%
LMArena WebDev15561582
SciCode53.5%51%
WeirdML82.9%66.2%
LMArena Coding14901470
ALE-Bench1,5641,403
SWE-bench Verified—77.6%
DeepSWE59%—
GSO47.1%—

Agentic & Tool Use Claude Opus 4.8 leads

Claude Opus 4.8: 47.6 (#11), DeepSeek V4 Pro: 32.8 (#58)

Agentic & Tool Use benchmarks
BenchmarkClaude Opus 4.8DeepSeek V4 Pro
APEX-Agents48.9%47.3%
Vending-Bench 25,7873,285
OSWorld 2.020.6%—
Remote Labor Index8.3%—
τ²-bench Banking39.7%—
DeepResearch Bench50.2%—
PostTrainBench33.8%—
GBAEval70.9%—
GDP.pdf24%—
LMArena Search1204—

Reasoning Claude Opus 4.8 leads

Claude Opus 4.8: 64.7 (#16), DeepSeek V4 Pro: 56.5 (#24)

Reasoning benchmarks
BenchmarkClaude Opus 4.8DeepSeek V4 Pro
ARC-AGI-272.1%61.3%
Kagi LLM Benchmark88.8%53.5%
NYT Connections (extended)91.1%91.3%
ARC-AGI-192.5%90.5%
CritPt20.9%18%
Chess Puzzles34%47%
LMArena Hard Prompts14821461
Mystery Game Puzzles36%43%
DTBench94.9%93.9%
LMCA57.5%45.5%
Surface Evolver Bench87.5%40%
Epoch Capabilities Index158.21155.31
ForecastBench59.956.1
SimpleBench64.8%—
EnigmaEval23.5%—
EBR-Bench28.6%—
Bench to the Future 30.14—

Math Claude Opus 4.8 leads

Claude Opus 4.8: 78.4 (#13), DeepSeek V4 Pro: 64.8 (#30)

Math benchmarks
BenchmarkClaude Opus 4.8DeepSeek V4 Pro
FrontierMath (Tiers 1-3)80%64.6%
FrontierMath Tier 456.1%26.8%
MathArena Final-Answer Competitions91.8%76.6%
OTIS Mock AIME 2024-202598.3%98.6%
ProofBench69%50%
LMArena Math14871455
FrontierMath (Feb 2025 set)47.2%—
FrontierMath Tier 4 (v1)31.3%—

Knowledge Claude Opus 4.8 leads

Claude Opus 4.8: 61.3 (#29), DeepSeek V4 Pro: 59.5 (#31)

Knowledge benchmarks
BenchmarkClaude Opus 4.8DeepSeek V4 Pro
GPQA Diamond91%91.7%
SimpleQA Verified53%52.9%
LMArena Expert15021464
Vectara Hallucination Rate—8.6%

Multimodal Not comparable

Claude Opus 4.8: 42.9 (#26), DeepSeek V4 Pro: —

Multimodal benchmarks
BenchmarkClaude Opus 4.8DeepSeek V4 Pro
LMArena Vision1294—
Blueprint-Bench 214.5%—
Furniture Assembly42.5%—
LMArena Document1475—

Multilingual Too close to call

Claude Opus 4.8: 55.2 (#33), DeepSeek V4 Pro: 54.4 (#45)

Multilingual benchmarks
BenchmarkClaude Opus 4.8DeepSeek V4 Pro
LMArena Non-English14501439
LMArena Chinese15071486
LMArena French14811472
LMArena German14721458
LMArena Japanese14401445
LMArena Korean14321447
LMArena Russian14741453
LMArena Spanish14661458

Instruction Following Claude Opus 4.8 leads

Claude Opus 4.8: 77.4 (#24), DeepSeek V4 Pro: 76.1 (#47)

Instruction Following benchmarks
BenchmarkClaude Opus 4.8DeepSeek V4 Pro
LMArena Instruction Following14761448

Long Context Too close to call

Claude Opus 4.8: 45.4 (#35), DeepSeek V4 Pro: 45.0 (#51)

Long Context benchmarks
BenchmarkClaude Opus 4.8DeepSeek V4 Pro
LMArena Longer Query14831458
CL-bench Life—13.5%

Writing & Preference Claude Opus 4.8 leads

Claude Opus 4.8: 72.0 (#16), DeepSeek V4 Pro: 65.5 (#46)

Writing & Preference benchmarks
BenchmarkClaude Opus 4.8DeepSeek V4 Pro
LMArena Text14611451
LMArena Creative Writing14541446
EQ-Bench Creative Writing18401553
EQ-Bench 412811166
LMArena Multi-Turn14761467

Frequently asked questions

Is Claude Opus 4.8 better than DeepSeek V4 Pro?

Claude Opus 4.8 is the stronger model overall, scoring 60.7 to 54.3 on the Noometry Index. DeepSeek V4 Pro costs 10× less per token, which makes it the better buy when Claude Opus 4.8's lead doesn't matter for your workload.

Which is cheaper, Claude Opus 4.8 or DeepSeek V4 Pro?

DeepSeek V4 Pro is cheaper. It lists at $0.66 per million input tokens and $1.98 per million output tokens; Claude Opus 4.8 lists at $5 and $25.

Is Claude Opus 4.8 or DeepSeek V4 Pro better for coding?

Claude Opus 4.8 scores higher on coding benchmarks: 59.9 versus 52.4 in the Noometry coding category.

Which has the bigger context window?

Both accept 1M tokens.

How many benchmarks do Claude Opus 4.8 and DeepSeek V4 Pro share?

45 benchmarks have published results for both models. Claude Opus 4.8 has 65 scored results on Noometry and DeepSeek V4 Pro has 48.

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