Noometry

Model comparison

GPT-6 Sol vs Kimi K2.7 Code

GPT-6 Sol is the stronger model overall, scoring 61.8 to 43.3 on the Noometry Index. Kimi K2.7 Code costs 2.3× less per token, which makes it the better buy when GPT-6 Sol's lead doesn't matter for your workload.

Last verified . 14 shared benchmarks.

GPT-6 Sol OpenAI

61.8

Rank #12 Confirmed

Kimi K2.7 Code Moonshot AI

43.3

Rank #94 Confirmed

Summary

  • They share 14 benchmarks with published results for both. GPT-6 Sol scores higher in 5 categories and Kimi K2.7 Code in 0 categories; 5 gaps are clear of the uncertainty.
  • The widest gap is in reasoning, where GPT-6 Sol leads 74.0 to 39.0.
  • The biggest single-benchmark swing is FrontierMath Tier 4: 90% for GPT-6 Sol and 12.2% for Kimi K2.7 Code.
  • Kimi K2.7 Code is cheaper at $0.95 / $4 per million input/output tokens, against $2 / $10 for GPT-6 Sol.
  • GPT-6 Sol accepts more context: 1.05M tokens versus 262K.
  • Kimi K2.7 Code has downloadable open weights; the other is API-only.

Side by side

GPT-6 SolKimi K2.7 Code
ProviderOpenAIMoonshot AI
Noometry Index61.843.3
Released2026-09-222026-06-12
WeightsProprietaryOpen
Context window1.05M262K
Max output128K262K
Input $ / M tokens$2$0.95
Output $ / M tokens$10$4
Results tracked4519

Sponsored placements are available on pages like this one. Advertise on Noometry

Category by category

Coding GPT-6 Sol leads

GPT-6 Sol: 60.1 (#11), Kimi K2.7 Code: 42.9 (#95)

BenchmarkGPT-6 SolKimi K2.7 Code
DeepSWE68.8%30.5%
FrontierCode49.3%30.1%
LMArena WebDev16881473
SciCode57.6%47.5%
ALE-Bench2,462886.23
WeirdML—54.1%
LMArena Coding1447—

Agentic & Tool Use GPT-6 Sol leads

GPT-6 Sol: 37.2 (#36), Kimi K2.7 Code: 24.0 (#122)

BenchmarkGPT-6 SolKimi K2.7 Code
APEX-Agents54.3%37.6%
Vending-Bench 214,4285,083
GBAEval—0.9%
GDP.pdf26.4%—

Reasoning GPT-6 Sol leads

GPT-6 Sol: 74.0 (#9), Kimi K2.7 Code: 39.0 (#61)

BenchmarkGPT-6 SolKimi K2.7 Code
CritPt30.9%10%
Epoch Capabilities Index162.72149.97
ARC-AGI-289.6%—
SimpleBench—57.9%
NYT Connections (extended)90.1%—
ARC-AGI-195.5%—
Chess Puzzles—21%
EBR-Bench53.3%—
LMArena Hard Prompts1418—
Mystery Game Puzzles56%—
DTBench97.3%—
LMCA59.1%—
Surface Evolver Bench—48.8%

Math GPT-6 Sol leads

GPT-6 Sol: 87.2 (#7), Kimi K2.7 Code: 52.9 (#48)

BenchmarkGPT-6 SolKimi K2.7 Code
FrontierMath (Tiers 1-3)89.8%54%
FrontierMath Tier 490%12.2%
OTIS Mock AIME 2024-2025100%95.6%
ProofBench83%—
LMArena Math1402—

Knowledge GPT-6 Sol leads

GPT-6 Sol: 64.8 (#15), Kimi K2.7 Code: 53.5 (#57)

BenchmarkGPT-6 SolKimi K2.7 Code
GPQA Diamond94.3%87.9%
SimpleQA Verified60.7%36.5%
Vectara Hallucination Rate6.5%—
LMArena Expert1439—

Multimodal Not comparable

GPT-6 Sol: 47.6 (#10), Kimi K2.7 Code: —

BenchmarkGPT-6 SolKimi K2.7 Code
LMArena Vision1245—
Blueprint-Bench 236.9%—
Furniture Assembly58.3%—

Multilingual Not comparable

GPT-6 Sol: 50.5 (#118), Kimi K2.7 Code: —

BenchmarkGPT-6 SolKimi K2.7 Code
LMArena Non-English1385—
LMArena Chinese1405—
LMArena French1410—
LMArena German1390—
LMArena Japanese1385—
LMArena Korean1341—
LMArena Russian1401—
LMArena Spanish1384—

Instruction Following Not comparable

GPT-6 Sol: 74.5 (#94), Kimi K2.7 Code: —

BenchmarkGPT-6 SolKimi K2.7 Code
LMArena Instruction Following1412—

Long Context Not comparable

GPT-6 Sol: 43.1 (#108), Kimi K2.7 Code: —

BenchmarkGPT-6 SolKimi K2.7 Code
LMArena Longer Query1411—

Writing & Preference Not comparable

GPT-6 Sol: 71.9 (#18), Kimi K2.7 Code: —

BenchmarkGPT-6 SolKimi K2.7 Code
LMArena Text1395—
LMArena Creative Writing1378—
EQ-Bench Creative Writing2125—
LMArena Multi-Turn1412—

Frequently asked questions

Is GPT-6 Sol better than Kimi K2.7 Code?

GPT-6 Sol is the stronger model overall, scoring 61.8 to 43.3 on the Noometry Index. Kimi K2.7 Code costs 2.3× less per token, which makes it the better buy when GPT-6 Sol's lead doesn't matter for your workload.

Which is cheaper, GPT-6 Sol or Kimi K2.7 Code?

Kimi K2.7 Code is cheaper. It lists at $0.95 per million input tokens and $4 per million output tokens; GPT-6 Sol lists at $2 and $10.

Is GPT-6 Sol or Kimi K2.7 Code better for coding?

GPT-6 Sol scores higher on coding benchmarks: 60.1 versus 42.9 in the Noometry coding category.

Which has the bigger context window?

GPT-6 Sol does, with 1.05M tokens against 262K.

How many benchmarks do GPT-6 Sol and Kimi K2.7 Code share?

14 benchmarks have published results for both models. GPT-6 Sol has 45 scored results on Noometry and Kimi K2.7 Code has 19.

Related comparisons

Go deeper