Noometry

Model comparison

Gemini 3.5 Flash Lite vs GPT-6 Sol

GPT-6 Sol is the stronger model overall, scoring 49.2 to 41.8 on the Noometry Index. Gemini 3.5 Flash Lite costs 4.7× less per token, which makes it the better buy when GPT-6 Sol's lead doesn't matter for your workload.

Last verified . 17 shared benchmarks.

Gemini 3.5 Flash Lite Google

41.8

Rank #113 Confirmed

GPT-6 Sol OpenAI

49.2

Rank #46 Confirmed

Summary

  • They share 17 benchmarks with published results for both. Gemini 3.5 Flash Lite scores higher in 4 categories and GPT-6 Sol in 6 categories; 8 gaps are clear of the uncertainty.
  • The widest gap is in reasoning, where GPT-6 Sol leads 49.3 to 27.8.
  • The biggest single-benchmark swing is NYT Connections (extended): 60.4% for Gemini 3.5 Flash Lite and 90.1% for GPT-6 Sol.
  • Gemini 3.5 Flash Lite is cheaper at $0.30 / $2.50 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 3.5 Flash LiteGPT-6 Sol
ProviderGoogleOpenAI
Noometry Index41.849.2
Released2026-07-212026-09-22
WeightsProprietaryProprietary
Context window1.05M1.05M
Max output66K128K
Input $ / M tokens$0.30$2
Output $ / M tokens$2.50$10
Results tracked3822

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Category by category

Coding GPT-6 Sol leads

Gemini 3.5 Flash Lite: 42.1 (#96), GPT-6 Sol: 59.6 (#11)

BenchmarkGemini 3.5 Flash LiteGPT-6 Sol
LMArena WebDev14401692
LMArena Coding14551453
DeepSWE—68.8%
FrontierCode—49.3%
SciCode41.3%—
WeirdML39%—
ALE-Bench765.27—

Agentic & Tool Use GPT-6 Sol leads

Gemini 3.5 Flash Lite: 28.6 (#82), GPT-6 Sol: 33.5 (#49)

BenchmarkGemini 3.5 Flash LiteGPT-6 Sol
GDP.pdf10%28%

Reasoning GPT-6 Sol leads

Gemini 3.5 Flash Lite: 27.8 (#95), GPT-6 Sol: 49.3 (#34)

BenchmarkGemini 3.5 Flash LiteGPT-6 Sol
NYT Connections (extended)60.4%90.1%
LMArena Hard Prompts14411420
ARC-AGI-210.3%—
ARC-AGI-153.5%—
CritPt0%—
Chess Puzzles22%—
EBR-Bench—53.3%
Mystery Game Puzzles19%—
DTBench83.5%—
LMCA37.6%—
Epoch Capabilities Index145.12—

Math GPT-6 Sol leads

Gemini 3.5 Flash Lite: 25.7 (#245), GPT-6 Sol: 35.8 (#135)

BenchmarkGemini 3.5 Flash LiteGPT-6 Sol
LMArena Math14311404
FrontierMath (Tiers 1-3)26%—
FrontierMath Tier 40%—
OTIS Mock AIME 2024-202571.1%—
ProofBench13%—

Knowledge Gemini 3.5 Flash Lite leads

Gemini 3.5 Flash Lite: 50.0 (#66), GPT-6 Sol: 43.0 (#87)

BenchmarkGemini 3.5 Flash LiteGPT-6 Sol
LMArena Expert14301449
GPQA Diamond83.3%—
Vectara Hallucination Rate—6.5%

Multimodal GPT-6 Sol leads

Gemini 3.5 Flash Lite: 40.3 (#38), GPT-6 Sol: 47.6 (#9)

BenchmarkGemini 3.5 Flash LiteGPT-6 Sol
LMArena Vision1266—
Furniture Assembly—58.3%

Multilingual Gemini 3.5 Flash Lite leads

Gemini 3.5 Flash Lite: 53.8 (#59), GPT-6 Sol: 51.0 (#113)

BenchmarkGemini 3.5 Flash LiteGPT-6 Sol
LMArena Non-English14281389
LMArena Chinese14671416
LMArena Russian14431407
LMArena Spanish14401377
LMArena French1452—
LMArena German1454—
LMArena Japanese1428—
LMArena Korean1406—

Instruction Following Too close to call

Gemini 3.5 Flash Lite: 75.0 (#77), GPT-6 Sol: 74.4 (#97)

BenchmarkGemini 3.5 Flash LiteGPT-6 Sol
LMArena Instruction Following14201406

Long Context Too close to call

Gemini 3.5 Flash Lite: 43.8 (#80), GPT-6 Sol: 43.2 (#100)

BenchmarkGemini 3.5 Flash LiteGPT-6 Sol
LMArena Longer Query14351415

Writing & Preference GPT-6 Sol leads

Gemini 3.5 Flash Lite: 64.4 (#55), GPT-6 Sol: 72.3 (#15)

BenchmarkGemini 3.5 Flash LiteGPT-6 Sol
LMArena Text14361396
LMArena Creative Writing14191392
EQ-Bench Creative Writing15592125
LMArena Multi-Turn14451405

Frequently asked questions

Is Gemini 3.5 Flash Lite better than GPT-6 Sol?

GPT-6 Sol is the stronger model overall, scoring 49.2 to 41.8 on the Noometry Index. Gemini 3.5 Flash Lite costs 4.7× 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 3.5 Flash Lite or GPT-6 Sol?

Gemini 3.5 Flash Lite is cheaper. It lists at $0.30 per million input tokens and $2.50 per million output tokens; GPT-6 Sol lists at $2 and $10.

Is Gemini 3.5 Flash Lite or GPT-6 Sol better for coding?

GPT-6 Sol scores higher on coding benchmarks: 59.6 versus 42.1 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 3.5 Flash Lite and GPT-6 Sol share?

17 benchmarks have published results for both models. Gemini 3.5 Flash Lite has 38 scored results on Noometry and GPT-6 Sol has 22.

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