Noometry

Model comparison

Gemini 3.1 Flash Lite vs GPT-6.1 Sol

Gemini 3.1 Flash Lite has enough public results to be ranked (#141); GPT-6.1 Sol does not yet, so treat this comparison as directional.

Last verified . 0 shared benchmarks.

Gemini 3.1 Flash Lite Google

40.4

Rank #141 Confirmed

GPT-6.1 Sol OpenAI

42.1

Unranked Sparse

Summary

  • The widest gap is in coding, where GPT-6.1 Sol leads 51.4 to 37.5.
  • Gemini 3.1 Flash Lite is cheaper at $0.25 / $1.50 per million input/output tokens, against $2 / $10 for GPT-6.1 Sol.
  • GPT-6.1 Sol accepts more context: 1.05M tokens versus 1.05M.

Side by side

Gemini 3.1 Flash LiteGPT-6.1 Sol
ProviderGoogleOpenAI
Noometry Index40.442.1
Released2026-03-032026-09-29
WeightsProprietaryProprietary
Context window1.05M1.05M
Max output66K128K
Input $ / M tokens$0.25$2
Output $ / M tokens$1.50$10
Results tracked382

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Category by category

Coding GPT-6.1 Sol leads

Gemini 3.1 Flash Lite: 37.5 (#179), GPT-6.1 Sol: 51.4

BenchmarkGemini 3.1 Flash LiteGPT-6.1 Sol
DeepSWE—75.2%
LMArena WebDev1256—
SciCode41.9%—
WeirdML52.2%—
LMArena Coding1400—
ALE-Bench797.73—

Agentic & Tool Use GPT-6.1 Sol leads

Gemini 3.1 Flash Lite: 29.9 (#72), GPT-6.1 Sol: 34.3

BenchmarkGemini 3.1 Flash LiteGPT-6.1 Sol
DeepResearch Bench37.3%—
GDP.pdf—32%

Reasoning Not comparable

Gemini 3.1 Flash Lite: 22.3 (#181), GPT-6.1 Sol: —

BenchmarkGemini 3.1 Flash LiteGPT-6.1 Sol
Kagi LLM Benchmark67.2%—
NYT Connections (extended)8.2%—
CritPt1.1%—
Chess Puzzles25%—
EnigmaEval3%—
Thematic Generalization63.3%—
LMArena Hard Prompts1407—
DTBench76.8%—
LMCA35%—
Epoch Capabilities Index144.45—
ForecastBench54.4—

Math Not comparable

Gemini 3.1 Flash Lite: 39.5 (#82), GPT-6.1 Sol: —

BenchmarkGemini 3.1 Flash LiteGPT-6.1 Sol
FrontierMath (Tiers 1-3)27.7%—
OTIS Mock AIME 2024-202580%—
LMArena Math1427—

Knowledge Not comparable

Gemini 3.1 Flash Lite: 41.7 (#95), GPT-6.1 Sol: —

BenchmarkGemini 3.1 Flash LiteGPT-6.1 Sol
GPQA Diamond81.8%—
Humanity's Last Exam8.6%—
Vectara Hallucination Rate8.2%—
LMArena Expert1397—

Multimodal Not comparable

Gemini 3.1 Flash Lite: 38.7 (#57), GPT-6.1 Sol: —

BenchmarkGemini 3.1 Flash LiteGPT-6.1 Sol
LMArena Vision1240—

Multilingual Not comparable

Gemini 3.1 Flash Lite: 52.5 (#82), GPT-6.1 Sol: —

BenchmarkGemini 3.1 Flash LiteGPT-6.1 Sol
LMArena Non-English1410—
LMArena Chinese1461—
LMArena French1423—
LMArena German1429—
LMArena Japanese1411—
LMArena Korean1393—
LMArena Russian1420—
LMArena Spanish1420—

Instruction Following Not comparable

Gemini 3.1 Flash Lite: 72.9 (#126), GPT-6.1 Sol: —

BenchmarkGemini 3.1 Flash LiteGPT-6.1 Sol
LMArena Instruction Following1376—

Long Context Not comparable

Gemini 3.1 Flash Lite: 42.5 (#117), GPT-6.1 Sol: —

BenchmarkGemini 3.1 Flash LiteGPT-6.1 Sol
LMArena Longer Query1394—

Writing & Preference Not comparable

Gemini 3.1 Flash Lite: 61.0 (#90), GPT-6.1 Sol: —

BenchmarkGemini 3.1 Flash LiteGPT-6.1 Sol
LMArena Text1416—
LMArena Creative Writing1401—
LMArena Multi-Turn1417—

Frequently asked questions

Is Gemini 3.1 Flash Lite better than GPT-6.1 Sol?

Gemini 3.1 Flash Lite has enough public results to be ranked (#141); GPT-6.1 Sol does not yet, so treat this comparison as directional.

Which is cheaper, Gemini 3.1 Flash Lite or GPT-6.1 Sol?

Gemini 3.1 Flash Lite is cheaper. It lists at $0.25 per million input tokens and $1.50 per million output tokens; GPT-6.1 Sol lists at $2 and $10.

Is Gemini 3.1 Flash Lite or GPT-6.1 Sol better for coding?

GPT-6.1 Sol scores higher on coding benchmarks: 51.4 versus 37.5 in the Noometry coding category.

Which has the bigger context window?

GPT-6.1 Sol does, with 1.05M tokens against 1.05M.

How many benchmarks do Gemini 3.1 Flash Lite and GPT-6.1 Sol share?

0 benchmarks have published results for both models. Gemini 3.1 Flash Lite has 38 scored results on Noometry and GPT-6.1 Sol has 2.

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