Model comparison

AI Co-Mathematician vs GPT-6.1 Sol

GPT-6.1 Sol has enough public results to be ranked (#6); AI Co-Mathematician does not yet, so treat this comparison as directional.

Last verified . 1 shared benchmarks.

AI Co-Mathematician Google

58.1

Unranked Sparse

GPT-6.1 Sol OpenAI

65.6

Rank #6 Confirmed

Summary

  • They share 1 benchmark with published results for both. AI Co-Mathematician scores higher in 0 categories and GPT-6.1 Sol in 1 category; one gap is clear of the uncertainty.
  • The widest gap is in math, where GPT-6.1 Sol leads 93.7 to 72.3.
  • The biggest single-benchmark swing is FrontierMath Tier 4: 75.6% for AI Co-Mathematician and 100% for GPT-6.1 Sol.

Side by side

AI Co-Mathematician and GPT-6.1 Sol specifications
AI Co-MathematicianGPT-6.1 Sol
ProviderGoogleOpenAI
Noometry Index58.165.6
Released2026-05-082026-09-29
WeightsProprietaryProprietary
Context window—1.05M
Max output—128K
Input $ / M tokens—$2
Output $ / M tokens—$10
Results tracked234

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

Category by category

Coding Not comparable

AI Co-Mathematician: —, GPT-6.1 Sol: 63.2 (#8)

Coding benchmarks
BenchmarkAI Co-MathematicianGPT-6.1 Sol
DeepSWE—75.2%
FrontierCode—50.2%
LMArena WebDev—1755
SciCode—55.8%
LMArena Coding—1487

Agentic & Tool Use Not comparable

AI Co-Mathematician: —, GPT-6.1 Sol: 39.6 (#26)

Agentic & Tool Use benchmarks
BenchmarkAI Co-MathematicianGPT-6.1 Sol
APEX-Agents—60%
GDP.pdf—32%

Reasoning Not comparable

AI Co-Mathematician: —, GPT-6.1 Sol: 81.9 (#2)

Reasoning benchmarks
BenchmarkAI Co-MathematicianGPT-6.1 Sol
ARC-AGI-2—94.2%
NYT Connections (extended)—95.5%
ARC-AGI-1—98.5%
CritPt—31.7%
Chess Puzzles—61%
EBR-Bench—54.3%
LMArena Hard Prompts—1466
Mystery Game Puzzles—80%
Epoch Capabilities Index—166.09

Math GPT-6.1 Sol leads

AI Co-Mathematician: 72.3, GPT-6.1 Sol: 93.7 (#1)

Math benchmarks
BenchmarkAI Co-MathematicianGPT-6.1 Sol
FrontierMath Tier 475.6%100%
FrontierMath (Tiers 1-3)—93.7%
OTIS Mock AIME 2024-2025—100%
ProofBench—99%
LMArena Math—1464
FrontierMath Tier 4 (v1)47.9%—

Knowledge Not comparable

AI Co-Mathematician: —, GPT-6.1 Sol: 71.8 (#4)

Knowledge benchmarks
BenchmarkAI Co-MathematicianGPT-6.1 Sol
GPQA Diamond—95.4%
SimpleQA Verified—73.9%
LMArena Expert—1502

Multimodal Not comparable

AI Co-Mathematician: —, GPT-6.1 Sol: 52.7 (#5)

Multimodal benchmarks
BenchmarkAI Co-MathematicianGPT-6.1 Sol
LMArena Vision—1288
Furniture Assembly—80%

Multilingual Not comparable

AI Co-Mathematician: —, GPT-6.1 Sol: 54.3 (#46)

Multilingual benchmarks
BenchmarkAI Co-MathematicianGPT-6.1 Sol
LMArena Non-English—1438
LMArena Chinese—1477
LMArena Russian—1455

Instruction Following Not comparable

AI Co-Mathematician: —, GPT-6.1 Sol: 77.0 (#29)

Instruction Following benchmarks
BenchmarkAI Co-MathematicianGPT-6.1 Sol
LMArena Instruction Following—1468

Long Context Not comparable

AI Co-Mathematician: —, GPT-6.1 Sol: 44.9 (#54)

Long Context benchmarks
BenchmarkAI Co-MathematicianGPT-6.1 Sol
LMArena Longer Query—1465

Writing & Preference Not comparable

AI Co-Mathematician: —, GPT-6.1 Sol: 63.6 (#63)

Writing & Preference benchmarks
BenchmarkAI Co-MathematicianGPT-6.1 Sol
LMArena Text—1447
LMArena Creative Writing—1432
LMArena Multi-Turn—1449

Frequently asked questions

Is AI Co-Mathematician better than GPT-6.1 Sol?

GPT-6.1 Sol has enough public results to be ranked (#6); AI Co-Mathematician does not yet, so treat this comparison as directional.

How many benchmarks do AI Co-Mathematician and GPT-6.1 Sol share?

1 benchmark has published results for both models. AI Co-Mathematician has 2 scored results on Noometry and GPT-6.1 Sol has 34.

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