Noometry

Model comparison

Claude Sonnet 4.6 vs Gemini 2.5 Flash-Lite

Claude Sonnet 4.6 is the stronger model overall, scoring 50.3 to 37.0 on the Noometry Index. Gemini 2.5 Flash-Lite costs 34× less per token, which makes it the better buy when Claude Sonnet 4.6's lead doesn't matter for your workload.

Last verified . 24 shared benchmarks.

Claude Sonnet 4.6 Anthropic

50.3

Rank #50 Confirmed

Gemini 2.5 Flash-Lite Google

37.0

Rank #211 Confirmed

Summary

  • They share 24 benchmarks with published results for both. Claude Sonnet 4.6 scores higher in 10 categories and Gemini 2.5 Flash-Lite in 0 categories; 10 gaps are clear of the uncertainty.
  • The widest gap is in reasoning, where Claude Sonnet 4.6 leads 46.1 to 22.2.
  • The biggest single-benchmark swing is WeirdML: 66.1% for Claude Sonnet 4.6 and 35.2% for Gemini 2.5 Flash-Lite.
  • Gemini 2.5 Flash-Lite is cheaper at $0.10 / $0.40 per million input/output tokens, against $3 / $15 for Claude Sonnet 4.6.
  • Gemini 2.5 Flash-Lite accepts more context: 1.05M tokens versus 1M.

Side by side

Claude Sonnet 4.6Gemini 2.5 Flash-Lite
ProviderAnthropicGoogle
Noometry Index50.337.0
Released2026-02-172025-06-17
WeightsProprietaryProprietary
Context window1M1.05M
Max output128K66K
Input $ / M tokens$3$0.10
Output $ / M tokens$15$0.40
Results tracked5733

Sponsored placements are available on pages like this one. Advertise on Noometry

Category by category

Coding Claude Sonnet 4.6 leads

Claude Sonnet 4.6: 46.3 (#67), Gemini 2.5 Flash-Lite: 38.5 (#173)

BenchmarkClaude Sonnet 4.6Gemini 2.5 Flash-Lite
WeirdML66.1%35.2%
LMArena Coding15041373
ALE-Bench1,327325.9
SWE-bench Verified75.2%—
DeepSWE29.9%—
FrontierCode24.3%—
LMArena WebDev1522—
SciCode46.8%—

Agentic & Tool Use Claude Sonnet 4.6 leads

Claude Sonnet 4.6: 39.1 (#28), Gemini 2.5 Flash-Lite: 28.0 (#96)

BenchmarkClaude Sonnet 4.6Gemini 2.5 Flash-Lite
Terminal-Bench53.4%—
APEX-Agents43%—
Berkeley Function Calling Leaderboard—36.9%
OSWorld 2.09.3%—
DeepResearch Bench54.9%—
OSWorld72.1%—
ExploitBench23.6%—
GBAEval48.8%—
GDP.pdf18%—
LMArena Search1221—
Vending-Bench 27,204—

Reasoning Claude Sonnet 4.6 leads

Claude Sonnet 4.6: 46.1 (#45), Gemini 2.5 Flash-Lite: 22.2 (#205)

BenchmarkClaude Sonnet 4.6Gemini 2.5 Flash-Lite
LMArena Hard Prompts14841377
DTBench89.9%62.8%
LMCA46.5%18.1%
Epoch Capabilities Index152.24133.94
ARC-AGI-260.4%—
Kagi LLM Benchmark—40.5%
NYT Connections (extended)80.9%—
ARC-AGI-186.5%—
CritPt3.1%—
Chess Puzzles13%—
Thematic Generalization76.3%—
Mystery Game Puzzles16%—
ForecastBench62—

Math Claude Sonnet 4.6 leads

Claude Sonnet 4.6: 52.9 (#49), Gemini 2.5 Flash-Lite: 38.0 (#144)

BenchmarkClaude Sonnet 4.6Gemini 2.5 Flash-Lite
LMArena Math14621373
OTIS Mock AIME 2024-202585.8%—
ProofBench45%—
Omni-MATH—48%
FrontierMath (Feb 2025 set)32.4%—
FrontierMath Tier 4 (v1)8.3%—

Knowledge Claude Sonnet 4.6 leads

Claude Sonnet 4.6: 51.7 (#65), Gemini 2.5 Flash-Lite: 32.5 (#210)

BenchmarkClaude Sonnet 4.6Gemini 2.5 Flash-Lite
Vectara Hallucination Rate10.6%3.3%
LMArena Expert15001373
GPQA Diamond87.4%—
SimpleQA Verified35.5%—
MMLU-Pro—53.7%
GPQA (HELM)—30.9%

Multimodal Claude Sonnet 4.6 leads

Claude Sonnet 4.6: 38.0 (#68), Gemini 2.5 Flash-Lite: 29.1 (#114)

BenchmarkClaude Sonnet 4.6Gemini 2.5 Flash-Lite
LMArena Vision12831198
VPCT—30%
Blueprint-Bench 26.7%—
LMArena Document1482—

Multilingual Claude Sonnet 4.6 leads

Claude Sonnet 4.6: 54.4 (#41), Gemini 2.5 Flash-Lite: 49.3 (#134)

BenchmarkClaude Sonnet 4.6Gemini 2.5 Flash-Lite
LMArena Non-English14401369
LMArena Chinese14911404
LMArena French14651388
LMArena German14281389
LMArena Japanese14201359
LMArena Korean14111360
LMArena Russian14401373
LMArena Spanish14641396

Instruction Following Claude Sonnet 4.6 leads

Claude Sonnet 4.6: 77.4 (#25), Gemini 2.5 Flash-Lite: 70.0 (#168)

BenchmarkClaude Sonnet 4.6Gemini 2.5 Flash-Lite
LMArena Instruction Following14751367
IFEval—81%

Long Context Claude Sonnet 4.6 leads

Claude Sonnet 4.6: 45.3 (#44), Gemini 2.5 Flash-Lite: 33.3 (#262)

BenchmarkClaude Sonnet 4.6Gemini 2.5 Flash-Lite
LMArena Longer Query14791373
Fiction.LiveBench—47.2%

Writing & Preference Claude Sonnet 4.6 leads

Claude Sonnet 4.6: 70.2 (#22), Gemini 2.5 Flash-Lite: 56.8 (#135)

BenchmarkClaude Sonnet 4.6Gemini 2.5 Flash-Lite
LMArena Text14581379
LMArena Creative Writing14351367
LMArena Multi-Turn14641366
EQ-Bench Creative Writing1810—
WildBench—81.8%
EQ-Bench 41207—

Frequently asked questions

Is Claude Sonnet 4.6 better than Gemini 2.5 Flash-Lite?

Claude Sonnet 4.6 is the stronger model overall, scoring 50.3 to 37.0 on the Noometry Index. Gemini 2.5 Flash-Lite costs 34× less per token, which makes it the better buy when Claude Sonnet 4.6's lead doesn't matter for your workload.

Which is cheaper, Claude Sonnet 4.6 or Gemini 2.5 Flash-Lite?

Gemini 2.5 Flash-Lite is cheaper. It lists at $0.10 per million input tokens and $0.40 per million output tokens; Claude Sonnet 4.6 lists at $3 and $15.

Is Claude Sonnet 4.6 or Gemini 2.5 Flash-Lite better for coding?

Claude Sonnet 4.6 scores higher on coding benchmarks: 46.3 versus 38.5 in the Noometry coding category.

Which has the bigger context window?

Gemini 2.5 Flash-Lite does, with 1.05M tokens against 1M.

How many benchmarks do Claude Sonnet 4.6 and Gemini 2.5 Flash-Lite share?

24 benchmarks have published results for both models. Claude Sonnet 4.6 has 57 scored results on Noometry and Gemini 2.5 Flash-Lite has 33.

Related comparisons

Go deeper