Noometry

Model comparison

GPT-6 Sol vs Kimi K2 Thinking Turbo

GPT-6 Sol is the stronger model overall, scoring 61.8 to 45.8 on the Noometry Index.

Last verified . 20 shared benchmarks.

GPT-6 Sol OpenAI

61.8

Rank #12 Confirmed

Kimi K2 Thinking Turbo Moonshot AI

45.8

Rank #70 Confirmed

Summary

  • They share 20 benchmarks with published results for both. GPT-6 Sol scores higher in 6 categories and Kimi K2 Thinking Turbo in 2 categories; 5 gaps are clear of the uncertainty.
  • The widest gap is in reasoning, where GPT-6 Sol leads 74.0 to 32.5.
  • The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 100% for GPT-6 Sol and 83.1% for Kimi K2 Thinking Turbo.
  • Kimi K2 Thinking Turbo has downloadable open weights; the other is API-only.

Side by side

GPT-6 SolKimi K2 Thinking Turbo
ProviderOpenAIMoonshot AI
Noometry Index61.845.8
Released2026-09-222025-11-06
WeightsProprietaryOpen
Context window1.05M—
Max output128K—
Input $ / M tokens$2—
Output $ / M tokens$10—
Results tracked4521

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Category by category

Coding GPT-6 Sol leads

GPT-6 Sol: 60.1 (#11), Kimi K2 Thinking Turbo: 38.4 (#178)

BenchmarkGPT-6 SolKimi K2 Thinking Turbo
LMArena WebDev16881322
LMArena Coding14471454
DeepSWE68.8%—
FrontierCode49.3%—
SciCode57.6%—
ALE-Bench2,462—

Agentic & Tool Use Not comparable

GPT-6 Sol: 37.2 (#36), Kimi K2 Thinking Turbo: —

BenchmarkGPT-6 SolKimi K2 Thinking Turbo
APEX-Agents54.3%—
GDP.pdf26.4%—
Vending-Bench 214,428—

Reasoning GPT-6 Sol leads

GPT-6 Sol: 74.0 (#9), Kimi K2 Thinking Turbo: 32.5 (#75)

BenchmarkGPT-6 SolKimi K2 Thinking Turbo
LMArena Hard Prompts14181428
ARC-AGI-289.6%—
NYT Connections (extended)90.1%—
ARC-AGI-195.5%—
CritPt30.9%—
Chess Puzzles—20%
EBR-Bench53.3%—
Mystery Game Puzzles56%—
DTBench97.3%—
LMCA59.1%—
Epoch Capabilities Index162.72—

Math GPT-6 Sol leads

GPT-6 Sol: 87.2 (#7), Kimi K2 Thinking Turbo: 47.4 (#68)

BenchmarkGPT-6 SolKimi K2 Thinking Turbo
OTIS Mock AIME 2024-2025100%83.1%
LMArena Math14021429
FrontierMath (Tiers 1-3)89.8%—
FrontierMath Tier 490%—
ProofBench83%—

Knowledge GPT-6 Sol leads

GPT-6 Sol: 64.8 (#15), Kimi K2 Thinking Turbo: 50.9 (#69)

BenchmarkGPT-6 SolKimi K2 Thinking Turbo
GPQA Diamond94.3%84.2%
LMArena Expert14391439
SimpleQA Verified60.7%—
Vectara Hallucination Rate6.5%—

Multimodal Not comparable

GPT-6 Sol: 47.6 (#10), Kimi K2 Thinking Turbo: —

BenchmarkGPT-6 SolKimi K2 Thinking Turbo
LMArena Vision1245—
Blueprint-Bench 236.9%—
Furniture Assembly58.3%—

Multilingual Too close to call

GPT-6 Sol: 50.5 (#118), Kimi K2 Thinking Turbo: 51.4 (#109)

BenchmarkGPT-6 SolKimi K2 Thinking Turbo
LMArena Non-English13851398
LMArena Chinese14051456
LMArena French14101425
LMArena German13901390
LMArena Japanese13851357
LMArena Korean13411330
LMArena Russian14011391
LMArena Spanish13841406

Instruction Following Too close to call

GPT-6 Sol: 74.5 (#94), Kimi K2 Thinking Turbo: 74.0 (#109)

BenchmarkGPT-6 SolKimi K2 Thinking Turbo
LMArena Instruction Following14121403

Long Context Too close to call

GPT-6 Sol: 43.1 (#108), Kimi K2 Thinking Turbo: 43.2 (#102)

BenchmarkGPT-6 SolKimi K2 Thinking Turbo
LMArena Longer Query14111415

Writing & Preference GPT-6 Sol leads

GPT-6 Sol: 71.9 (#18), Kimi K2 Thinking Turbo: 60.0 (#104)

BenchmarkGPT-6 SolKimi K2 Thinking Turbo
LMArena Text13951415
LMArena Creative Writing13781374
LMArena Multi-Turn14121414
EQ-Bench Creative Writing2125—

Frequently asked questions

Is GPT-6 Sol better than Kimi K2 Thinking Turbo?

GPT-6 Sol is the stronger model overall, scoring 61.8 to 45.8 on the Noometry Index.

Is GPT-6 Sol or Kimi K2 Thinking Turbo better for coding?

GPT-6 Sol scores higher on coding benchmarks: 60.1 versus 38.4 in the Noometry coding category.

How many benchmarks do GPT-6 Sol and Kimi K2 Thinking Turbo share?

20 benchmarks have published results for both models. GPT-6 Sol has 45 scored results on Noometry and Kimi K2 Thinking Turbo has 21.

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