Model comparison

GPT-6.1 Sol vs Olmo 2 0325 32b Instruct

GPT-6.1 Sol is the stronger model overall, scoring 65.6 to 32.7 on the Noometry Index.

Last verified . 11 shared benchmarks.

GPT-6.1 Sol OpenAI

65.6

Rank #6 Confirmed

Summary

  • They share 11 benchmarks with published results for both. GPT-6.1 Sol scores higher in 8 categories and Olmo 2 0325 32b Instruct in 0 categories; 8 gaps are clear of the uncertainty.
  • The widest gap is in math, where GPT-6.1 Sol leads 93.7 to 26.8.
  • Olmo 2 0325 32b Instruct has downloadable open weights; the other is API-only.

Side by side

GPT-6.1 Sol and Olmo 2 0325 32b Instruct specifications
GPT-6.1 SolOlmo 2 0325 32b Instruct
ProviderOpenAIAllen Institute for AI (Ai2)
Noometry Index65.632.7
Released2026-09-29—
WeightsProprietaryOpen
Context window1.05M—
Max output128K—
Input $ / M tokens$2—
Output $ / M tokens$10—
Results tracked3416

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Category by category

Coding GPT-6.1 Sol leads

GPT-6.1 Sol: 63.2 (#8), Olmo 2 0325 32b Instruct: 35.2 (#227)

Coding benchmarks
BenchmarkGPT-6.1 SolOlmo 2 0325 32b Instruct
LMArena Coding14871210
DeepSWE75.2%—
FrontierCode50.2%—
LMArena WebDev1755—
SciCode55.8%—

Agentic & Tool Use Not comparable

GPT-6.1 Sol: 39.6 (#26), Olmo 2 0325 32b Instruct: —

Agentic & Tool Use benchmarks
BenchmarkGPT-6.1 SolOlmo 2 0325 32b Instruct
APEX-Agents60%—
GDP.pdf32%—

Reasoning GPT-6.1 Sol leads

GPT-6.1 Sol: 81.9 (#2), Olmo 2 0325 32b Instruct: 23.6 (#175)

Reasoning benchmarks
BenchmarkGPT-6.1 SolOlmo 2 0325 32b Instruct
LMArena Hard Prompts14661208
ARC-AGI-294.2%—
NYT Connections (extended)95.5%—
ARC-AGI-198.5%—
CritPt31.7%—
Chess Puzzles61%—
EBR-Bench54.3%—
Mystery Game Puzzles80%—
Epoch Capabilities Index166.09—

Math GPT-6.1 Sol leads

GPT-6.1 Sol: 93.7 (#1), Olmo 2 0325 32b Instruct: 26.8 (#255)

Math benchmarks
BenchmarkGPT-6.1 SolOlmo 2 0325 32b Instruct
LMArena Math14641208
FrontierMath (Tiers 1-3)93.7%—
FrontierMath Tier 4100%—
OTIS Mock AIME 2024-2025100%—
ProofBench99%—
Omni-MATH—16.1%

Knowledge GPT-6.1 Sol leads

GPT-6.1 Sol: 71.8 (#4), Olmo 2 0325 32b Instruct: 19.5 (#279)

Knowledge benchmarks
BenchmarkGPT-6.1 SolOlmo 2 0325 32b Instruct
GPQA Diamond95.4%—
SimpleQA Verified73.9%—
MMLU-Pro—41.4%
GPQA (HELM)—28.7%
LMArena Expert1502—

Multimodal Not comparable

GPT-6.1 Sol: 52.7 (#5), Olmo 2 0325 32b Instruct: —

Multimodal benchmarks
BenchmarkGPT-6.1 SolOlmo 2 0325 32b Instruct
LMArena Vision1288—
Furniture Assembly80%—

Multilingual GPT-6.1 Sol leads

GPT-6.1 Sol: 54.3 (#46), Olmo 2 0325 32b Instruct: 34.8 (#248)

Multilingual benchmarks
BenchmarkGPT-6.1 SolOlmo 2 0325 32b Instruct
LMArena Non-English14381160
LMArena Chinese14771192
LMArena Russian14551187

Instruction Following GPT-6.1 Sol leads

GPT-6.1 Sol: 77.0 (#29), Olmo 2 0325 32b Instruct: 61.5 (#244)

Instruction Following benchmarks
BenchmarkGPT-6.1 SolOlmo 2 0325 32b Instruct
LMArena Instruction Following14681186
IFEval—78%

Long Context GPT-6.1 Sol leads

GPT-6.1 Sol: 44.9 (#54), Olmo 2 0325 32b Instruct: 36.2 (#234)

Long Context benchmarks
BenchmarkGPT-6.1 SolOlmo 2 0325 32b Instruct
LMArena Longer Query14651194

Writing & Preference GPT-6.1 Sol leads

GPT-6.1 Sol: 63.6 (#63), Olmo 2 0325 32b Instruct: 42.1 (#236)

Writing & Preference benchmarks
BenchmarkGPT-6.1 SolOlmo 2 0325 32b Instruct
LMArena Text14471218
LMArena Creative Writing14321199
LMArena Multi-Turn14491221
WildBench—73.4%

Frequently asked questions

Is GPT-6.1 Sol better than Olmo 2 0325 32b Instruct?

GPT-6.1 Sol is the stronger model overall, scoring 65.6 to 32.7 on the Noometry Index.

Is GPT-6.1 Sol or Olmo 2 0325 32b Instruct better for coding?

GPT-6.1 Sol scores higher on coding benchmarks: 63.2 versus 35.2 in the Noometry coding category.

How many benchmarks do GPT-6.1 Sol and Olmo 2 0325 32b Instruct share?

11 benchmarks have published results for both models. GPT-6.1 Sol has 34 scored results on Noometry and Olmo 2 0325 32b Instruct has 16.

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