Model comparison

Claude 3 Opus vs Kimi K2.5 Instant

Kimi K2.5 Instant is the stronger model overall, scoring 43.6 to 29.5 on the Noometry Index.

Last verified . 17 shared benchmarks.

Claude 3 Opus Anthropic

29.5

Rank #310 Confirmed

Kimi K2.5 Instant Moonshot AI

43.6

Rank #89 Confirmed

Summary

  • They share 17 benchmarks with published results for both. Claude 3 Opus scores higher in 0 categories and Kimi K2.5 Instant in 9 categories; 9 gaps are clear of the uncertainty.
  • The widest gap is in math, where Kimi K2.5 Instant leads 39.4 to 14.8.
  • Kimi K2.5 Instant has downloadable open weights; the other is API-only.

Side by side

Claude 3 Opus and Kimi K2.5 Instant specifications
Claude 3 OpusKimi K2.5 Instant
ProviderAnthropicMoonshot AI
Noometry Index29.543.6
Released2024-02-29—
WeightsProprietaryOpen
Context window——
Max output——
Input $ / M tokens——
Output $ / M tokens——
Results tracked4618

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Category by category

Coding Kimi K2.5 Instant leads

Claude 3 Opus: 32.9 (#267), Kimi K2.5 Instant: 42.6 (#97)

Coding benchmarks
BenchmarkClaude 3 OpusKimi K2.5 Instant
LMArena Coding12641484
LMArena WebDev—1404
WeirdML19.2%—
BigCodeBench Instruct45.5%—
LiveBench Coding38.6%—
BigCodeBench Complete57.4%—
HumanEval+77.4%—
MBPP+73.3%—

Agentic & Tool Use Not comparable

Claude 3 Opus: 24.6 (#116), Kimi K2.5 Instant: —

Agentic & Tool Use benchmarks
BenchmarkClaude 3 OpusKimi K2.5 Instant
Cybench10%—
METR Time Horizons29.5%—

Reasoning Kimi K2.5 Instant leads

Claude 3 Opus: 14.6 (#324), Kimi K2.5 Instant: 29.7 (#90)

Reasoning benchmarks
BenchmarkClaude 3 OpusKimi K2.5 Instant
LMArena Hard Prompts12451443
SimpleBench23.5%—
Chess Puzzles5%—
EnigmaEval0.8%—
LiveBench Reasoning40.6%—
DTBench61.6%—
LiveBench Data Analysis57.9%—
LMCA17%—
Epoch Capabilities Index126.91—
ForecastBench58.4—
LiveBench49.2%—
WinoGrande88.5%—

Math Kimi K2.5 Instant leads

Claude 3 Opus: 14.8 (#299), Kimi K2.5 Instant: 39.4 (#105)

Math benchmarks
BenchmarkClaude 3 OpusKimi K2.5 Instant
LMArena Math12731442
OTIS Mock AIME 2024-20254.7%—
LiveBench Math43.6%—
MATH Level 537.5%—

Knowledge Kimi K2.5 Instant leads

Claude 3 Opus: 24.5 (#267), Kimi K2.5 Instant: 40.2 (#123)

Knowledge benchmarks
BenchmarkClaude 3 OpusKimi K2.5 Instant
LMArena Expert12231440
GPQA Diamond47.2%—
SimpleQA Verified12.6%—
Confabulations22.7%—
MMLU84.6%—

Multimodal Kimi K2.5 Instant leads

Claude 3 Opus: 27.1 (#116), Kimi K2.5 Instant: 40.2 (#50)

Multimodal benchmarks
BenchmarkClaude 3 OpusKimi K2.5 Instant
LMArena Vision10231254

Multilingual Kimi K2.5 Instant leads

Claude 3 Opus: 41.4 (#207), Kimi K2.5 Instant: 52.0 (#94)

Multilingual benchmarks
BenchmarkClaude 3 OpusKimi K2.5 Instant
LMArena Non-English12581406
LMArena Chinese12481449
LMArena French12751403
LMArena German12581413
LMArena Korean11871378
LMArena Russian12801404
LMArena Spanish12461447
LMArena Japanese1204—

Instruction Following Kimi K2.5 Instant leads

Claude 3 Opus: 64.1 (#228), Kimi K2.5 Instant: 75.3 (#65)

Instruction Following benchmarks
BenchmarkClaude 3 OpusKimi K2.5 Instant
LMArena Instruction Following12481430
LiveBench Instruction Following63.9%—

Long Context Kimi K2.5 Instant leads

Claude 3 Opus: 38.2 (#202), Kimi K2.5 Instant: 43.9 (#83)

Long Context benchmarks
BenchmarkClaude 3 OpusKimi K2.5 Instant
LMArena Longer Query12591435

Writing & Preference Kimi K2.5 Instant leads

Claude 3 Opus: 47.2 (#213), Kimi K2.5 Instant: 60.6 (#95)

Writing & Preference benchmarks
BenchmarkClaude 3 OpusKimi K2.5 Instant
LMArena Text12621420
LMArena Creative Writing12351381
LMArena Multi-Turn12751427
LiveBench Language50.4%—

Frequently asked questions

Is Claude 3 Opus better than Kimi K2.5 Instant?

Kimi K2.5 Instant is the stronger model overall, scoring 43.6 to 29.5 on the Noometry Index.

Is Claude 3 Opus or Kimi K2.5 Instant better for coding?

Kimi K2.5 Instant scores higher on coding benchmarks: 42.6 versus 32.9 in the Noometry coding category.

How many benchmarks do Claude 3 Opus and Kimi K2.5 Instant share?

17 benchmarks have published results for both models. Claude 3 Opus has 46 scored results on Noometry and Kimi K2.5 Instant has 18.

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