Model comparison

Claude Opus 5 vs Deepseek Coder v2

Claude Opus 5 is the stronger model overall, scoring 67.8 to 35.9 on the Noometry Index.

Last verified . 17 shared benchmarks.

Claude Opus 5 Anthropic

67.8

Rank #4 Confirmed

Deepseek Coder v2 DeepSeek

35.9

Rank #220 Confirmed

Summary

  • They share 17 benchmarks with published results for both. Claude Opus 5 scores higher in 8 categories and Deepseek Coder v2 in 0 categories; 8 gaps are clear of the uncertainty.
  • The widest gap is in reasoning, where Claude Opus 5 leads 77.2 to 23.6.
  • Deepseek Coder v2 has downloadable open weights; the other is API-only.

Side by side

Claude Opus 5 and Deepseek Coder v2 specifications
Claude Opus 5Deepseek Coder v2
ProviderAnthropicDeepSeek
Noometry Index67.835.9
Released2026-07-242024-06-17
WeightsProprietaryOpen
Context window1M—
Max output128K—
Input $ / M tokens$5—
Output $ / M tokens$25—
Results tracked5724

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Category by category

Coding Claude Opus 5 leads

Claude Opus 5: 67.5 (#5), Deepseek Coder v2: 38.1 (#183)

Coding benchmarks
BenchmarkClaude Opus 5Deepseek Coder v2
LMArena Coding15341251
DeepSWE73.6%—
FrontierCode53.4%—
CursorBench46.6%—
LMArena WebDev1691—
FrontierSWE52%—
SciCode56.4%—
WeirdML91.8%—
BigCodeBench Instruct—48.2%
BigCodeBench Complete—59.7%
ALE-Bench2,165—
HumanEval+—82.3%
MBPP+—75.1%

Agentic & Tool Use Not comparable

Claude Opus 5: 55.6 (#1), Deepseek Coder v2: —

Agentic & Tool Use benchmarks
BenchmarkClaude Opus 5Deepseek Coder v2
APEX-Agents65.8%—
OSWorld 2.031.4%—
τ²-bench Banking48.7%—
PostTrainBench35%—
BALROG63.4%—
GBAEval79.6%—
GDP.pdf24%—
Vending-Bench 211,182—

Reasoning Claude Opus 5 leads

Claude Opus 5: 77.2 (#4), Deepseek Coder v2: 23.6 (#176)

Reasoning benchmarks
BenchmarkClaude Opus 5Deepseek Coder v2
LMArena Hard Prompts15261207
ARC-AGI-290.4%—
SimpleBench80.6%—
NYT Connections (extended)94.3%—
ARC-AGI-197.5%—
CritPt29.1%—
Chess Puzzles42%—
EBR-Bench45.7%—
Mystery Game Puzzles59%—
DTBench97.9%—
LMCA64.5%—
Bench to the Future 30.12—
Epoch Capabilities Index162.78—
WinoGrande—83.7%

Math Claude Opus 5 leads

Claude Opus 5: 86.2 (#8), Deepseek Coder v2: 34.9 (#190)

Math benchmarks
BenchmarkClaude Opus 5Deepseek Coder v2
LMArena Math15311241
FrontierMath (Tiers 1-3)85.6%—
FrontierMath Tier 473.2%—
OTIS Mock AIME 2024-202598.9%—
ProofBench99%—
GSM8K—94.5%

Knowledge Claude Opus 5 leads

Claude Opus 5: 66.8 (#9), Deepseek Coder v2: 32.3 (#212)

Knowledge benchmarks
BenchmarkClaude Opus 5Deepseek Coder v2
LMArena Expert15571181
GPQA Diamond93.9%—
SimpleQA Verified59.9%—
ARC (AI2) Challenge—64.3%

Multimodal Not comparable

Claude Opus 5: 50.8 (#8), Deepseek Coder v2: —

Multimodal benchmarks
BenchmarkClaude Opus 5Deepseek Coder v2
LMArena Vision1319—
Blueprint-Bench 230.4%—
Furniture Assembly60.8%—
LMArena Document1516—

Multilingual Claude Opus 5 leads

Claude Opus 5: 58.8 (#4), Deepseek Coder v2: 36.3 (#240)

Multilingual benchmarks
BenchmarkClaude Opus 5Deepseek Coder v2
LMArena Non-English15011182
LMArena Chinese15741201
LMArena French15191185
LMArena German15241164
LMArena Japanese15161126
LMArena Korean15211104
LMArena Russian15071188
LMArena Spanish15191153

Instruction Following Claude Opus 5 leads

Claude Opus 5: 79.2 (#7), Deepseek Coder v2: 61.7 (#242)

Instruction Following benchmarks
BenchmarkClaude Opus 5Deepseek Coder v2
LMArena Instruction Following15171180

Long Context Claude Opus 5 leads

Claude Opus 5: 46.5 (#21), Deepseek Coder v2: 37.0 (#224)

Long Context benchmarks
BenchmarkClaude Opus 5Deepseek Coder v2
LMArena Longer Query15151219

Writing & Preference Claude Opus 5 leads

Claude Opus 5: 79.2 (#1), Deepseek Coder v2: 38.2 (#253)

Writing & Preference benchmarks
BenchmarkClaude Opus 5Deepseek Coder v2
LMArena Text15071191
LMArena Creative Writing14911120
LMArena Multi-Turn14991177
EQ-Bench Creative Writing2133—
EQ-Bench 41385—

Frequently asked questions

Is Claude Opus 5 better than Deepseek Coder v2?

Claude Opus 5 is the stronger model overall, scoring 67.8 to 35.9 on the Noometry Index.

Is Claude Opus 5 or Deepseek Coder v2 better for coding?

Claude Opus 5 scores higher on coding benchmarks: 67.5 versus 38.1 in the Noometry coding category.

How many benchmarks do Claude Opus 5 and Deepseek Coder v2 share?

17 benchmarks have published results for both models. Claude Opus 5 has 57 scored results on Noometry and Deepseek Coder v2 has 24.

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