Noometry

Model comparison

Gemini 3.7 Flash vs GPT-5.1-Codex-mini

Gemini 3.7 Flash has enough public results to be ranked (#14); GPT-5.1-Codex-mini does not yet, so treat this comparison as directional.

Last verified . 1 shared benchmarks.

Gemini 3.7 Flash Google

59.8

Rank #14 Confirmed

GPT-5.1-Codex-mini OpenAI

37.3

Unranked Sparse

Summary

  • They share 1 benchmark with published results for both. Gemini 3.7 Flash scores higher in 2 categories and GPT-5.1-Codex-mini in 0 categories; 2 gaps are clear of the uncertainty.
  • The widest gap is in coding, where Gemini 3.7 Flash leads 56.2 to 31.6.
  • GPT-5.1-Codex-mini is cheaper at $0.25 / $2 per million input/output tokens, against $0.75 / $3.75 for Gemini 3.7 Flash.
  • Gemini 3.7 Flash accepts more context: 1.05M tokens versus 400K.

Side by side

Gemini 3.7 FlashGPT-5.1-Codex-mini
ProviderGoogleOpenAI
Noometry Index59.837.3
Released2026-08-132025-11-12
WeightsProprietaryProprietary
Context window1.05M400K
Max output66K128K
Input $ / M tokens$0.75$0.25
Output $ / M tokens$3.75$2
Results tracked442

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Category by category

Coding Gemini 3.7 Flash leads

Gemini 3.7 Flash: 56.2 (#22), GPT-5.1-Codex-mini: 31.6

BenchmarkGemini 3.7 FlashGPT-5.1-Codex-mini
LMArena WebDev15921244
DeepSWE65.5%—
FrontierCode43.6%—
FrontierSWE20.3%—
SciCode59.8%—
LMArena Coding1497—
ALE-Bench904.3—

Agentic & Tool Use Gemini 3.7 Flash leads

Gemini 3.7 Flash: 42.1 (#19), GPT-5.1-Codex-mini: 38.5

BenchmarkGemini 3.7 FlashGPT-5.1-Codex-mini
Terminal-Bench—61.6%
APEX-Agents67.8%—
Remote Labor Index5%—
GDP.pdf23.8%—

Reasoning Not comparable

Gemini 3.7 Flash: 70.0 (#15), GPT-5.1-Codex-mini: —

BenchmarkGemini 3.7 FlashGPT-5.1-Codex-mini
ARC-AGI-284.6%—
NYT Connections (extended)94%—
ARC-AGI-195.5%—
CritPt14.3%—
Chess Puzzles47%—
LMArena Hard Prompts1494—
Mystery Game Puzzles37%—
DTBench96.8%—
LMCA50.4%—
Epoch Capabilities Index157.27—

Math Not comparable

Gemini 3.7 Flash: 69.6 (#23), GPT-5.1-Codex-mini: —

BenchmarkGemini 3.7 FlashGPT-5.1-Codex-mini
FrontierMath (Tiers 1-3)71.6%—
FrontierMath Tier 436.6%—
OTIS Mock AIME 2024-202597.2%—
ProofBench58%—
LMArena Math1507—

Knowledge Not comparable

Gemini 3.7 Flash: 69.7 (#5), GPT-5.1-Codex-mini: —

BenchmarkGemini 3.7 FlashGPT-5.1-Codex-mini
GPQA Diamond94.8%—
SimpleQA Verified69.2%—
LMArena Expert1508—

Multimodal Not comparable

Gemini 3.7 Flash: 37.3 (#73), GPT-5.1-Codex-mini: —

BenchmarkGemini 3.7 FlashGPT-5.1-Codex-mini
LMArena Vision1316—
Furniture Assembly26.7%—

Multilingual Not comparable

Gemini 3.7 Flash: 57.6 (#7), GPT-5.1-Codex-mini: —

BenchmarkGemini 3.7 FlashGPT-5.1-Codex-mini
LMArena Non-English1484—
LMArena Chinese1548—
LMArena French1505—
LMArena German1498—
LMArena Japanese1512—
LMArena Korean1483—
LMArena Russian1516—
LMArena Spanish1503—

Instruction Following Not comparable

Gemini 3.7 Flash: 77.7 (#15), GPT-5.1-Codex-mini: —

BenchmarkGemini 3.7 FlashGPT-5.1-Codex-mini
LMArena Instruction Following1483—

Long Context Not comparable

Gemini 3.7 Flash: 45.7 (#30), GPT-5.1-Codex-mini: —

BenchmarkGemini 3.7 FlashGPT-5.1-Codex-mini
LMArena Longer Query1492—

Writing & Preference Not comparable

Gemini 3.7 Flash: 71.2 (#20), GPT-5.1-Codex-mini: —

BenchmarkGemini 3.7 FlashGPT-5.1-Codex-mini
LMArena Text1486—
LMArena Creative Writing1490—
EQ-Bench Creative Writing1723—
LMArena Multi-Turn1489—

Frequently asked questions

Is Gemini 3.7 Flash better than GPT-5.1-Codex-mini?

Gemini 3.7 Flash has enough public results to be ranked (#14); GPT-5.1-Codex-mini does not yet, so treat this comparison as directional.

Which is cheaper, Gemini 3.7 Flash or GPT-5.1-Codex-mini?

GPT-5.1-Codex-mini is cheaper. It lists at $0.25 per million input tokens and $2 per million output tokens; Gemini 3.7 Flash lists at $0.75 and $3.75.

Is Gemini 3.7 Flash or GPT-5.1-Codex-mini better for coding?

Gemini 3.7 Flash scores higher on coding benchmarks: 56.2 versus 31.6 in the Noometry coding category.

Which has the bigger context window?

Gemini 3.7 Flash does, with 1.05M tokens against 400K.

How many benchmarks do Gemini 3.7 Flash and GPT-5.1-Codex-mini share?

1 benchmark has published results for both models. Gemini 3.7 Flash has 44 scored results on Noometry and GPT-5.1-Codex-mini has 2.

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