Noometry

Model comparison

Gemini 2.5 Flash-Lite vs GPT-6 Sol

GPT-6 Sol is the stronger model overall, scoring 49.2 to 36.4 on the Noometry Index. Gemini 2.5 Flash-Lite costs 23× 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.

Gemini 2.5 Flash-Lite Google

36.4

Rank #208 Confirmed

GPT-6 Sol OpenAI

49.2

Rank #46 Confirmed

Summary

  • They share 14 benchmarks with published results for both. Gemini 2.5 Flash-Lite scores higher in 0 categories and GPT-6 Sol in 10 categories; 9 gaps are clear of the uncertainty.
  • The widest gap is in reasoning, where GPT-6 Sol leads 49.3 to 21.5.
  • Gemini 2.5 Flash-Lite is cheaper at $0.10 / $0.40 per million input/output tokens, against $2 / $10 for GPT-6 Sol.
  • GPT-6 Sol accepts more context: 1.05M tokens versus 1.05M.

Side by side

Gemini 2.5 Flash-LiteGPT-6 Sol
ProviderGoogleOpenAI
Noometry Index36.449.2
Released2025-06-172026-09-22
WeightsProprietaryProprietary
Context window1.05M1.05M
Max output66K128K
Input $ / M tokens$0.10$2
Output $ / M tokens$0.40$10
Results tracked3322

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Category by category

Coding GPT-6 Sol leads

Gemini 2.5 Flash-Lite: 38.0 (#167), GPT-6 Sol: 59.6 (#11)

BenchmarkGemini 2.5 Flash-LiteGPT-6 Sol
LMArena Coding13731453
DeepSWE—68.8%
FrontierCode—49.3%
LMArena WebDev—1692
WeirdML35.2%—
ALE-Bench325.9—

Agentic & Tool Use GPT-6 Sol leads

Gemini 2.5 Flash-Lite: 27.8 (#89), GPT-6 Sol: 33.5 (#49)

BenchmarkGemini 2.5 Flash-LiteGPT-6 Sol
Berkeley Function Calling Leaderboard36.9%—
GDP.pdf—28%

Reasoning GPT-6 Sol leads

Gemini 2.5 Flash-Lite: 21.5 (#196), GPT-6 Sol: 49.3 (#34)

BenchmarkGemini 2.5 Flash-LiteGPT-6 Sol
LMArena Hard Prompts13771420
Kagi LLM Benchmark40.5%—
NYT Connections (extended)—90.1%
EBR-Bench—53.3%
DTBench62.8%—
LMCA18.1%—
Epoch Capabilities Index133.93—

Math Too close to call

Gemini 2.5 Flash-Lite: 35.5 (#144), GPT-6 Sol: 35.8 (#135)

BenchmarkGemini 2.5 Flash-LiteGPT-6 Sol
LMArena Math13731404
Omni-MATH48%—

Knowledge GPT-6 Sol leads

Gemini 2.5 Flash-Lite: 32.1 (#206), GPT-6 Sol: 43.0 (#87)

BenchmarkGemini 2.5 Flash-LiteGPT-6 Sol
Vectara Hallucination Rate3.3%6.5%
LMArena Expert13731449
MMLU-Pro53.7%—
GPQA (HELM)30.9%—

Multimodal GPT-6 Sol leads

Gemini 2.5 Flash-Lite: 28.6 (#109), GPT-6 Sol: 47.6 (#9)

BenchmarkGemini 2.5 Flash-LiteGPT-6 Sol
LMArena Vision1198—
VPCT30%—
Furniture Assembly—58.3%

Multilingual GPT-6 Sol leads

Gemini 2.5 Flash-Lite: 49.5 (#129), GPT-6 Sol: 51.0 (#113)

BenchmarkGemini 2.5 Flash-LiteGPT-6 Sol
LMArena Non-English13691389
LMArena Chinese14041416
LMArena Russian13731407
LMArena Spanish13961377
LMArena French1388—
LMArena German1390—
LMArena Japanese1359—
LMArena Korean1358—

Instruction Following GPT-6 Sol leads

Gemini 2.5 Flash-Lite: 70.2 (#163), GPT-6 Sol: 74.4 (#97)

BenchmarkGemini 2.5 Flash-LiteGPT-6 Sol
LMArena Instruction Following13661406
IFEval81%—

Long Context GPT-6 Sol leads

Gemini 2.5 Flash-Lite: 33.3 (#257), GPT-6 Sol: 43.2 (#100)

BenchmarkGemini 2.5 Flash-LiteGPT-6 Sol
LMArena Longer Query13731415
Fiction.LiveBench47.2%—

Writing & Preference GPT-6 Sol leads

Gemini 2.5 Flash-Lite: 57.0 (#130), GPT-6 Sol: 72.3 (#15)

BenchmarkGemini 2.5 Flash-LiteGPT-6 Sol
LMArena Text13791396
LMArena Creative Writing13661392
LMArena Multi-Turn13671405
EQ-Bench Creative Writing—2125
WildBench81.8%—

Frequently asked questions

Is Gemini 2.5 Flash-Lite better than GPT-6 Sol?

GPT-6 Sol is the stronger model overall, scoring 49.2 to 36.4 on the Noometry Index. Gemini 2.5 Flash-Lite costs 23× less per token, which makes it the better buy when GPT-6 Sol's lead doesn't matter for your workload.

Which is cheaper, Gemini 2.5 Flash-Lite or GPT-6 Sol?

Gemini 2.5 Flash-Lite is cheaper. It lists at $0.10 per million input tokens and $0.40 per million output tokens; GPT-6 Sol lists at $2 and $10.

Is Gemini 2.5 Flash-Lite or GPT-6 Sol better for coding?

GPT-6 Sol scores higher on coding benchmarks: 59.6 versus 38.0 in the Noometry coding category.

Which has the bigger context window?

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

How many benchmarks do Gemini 2.5 Flash-Lite and GPT-6 Sol share?

14 benchmarks have published results for both models. Gemini 2.5 Flash-Lite has 33 scored results on Noometry and GPT-6 Sol has 22.

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