Model comparison

Claude Opus 4.1 vs Gemini 3.1 Flash Lite

Claude Opus 4.1 and Gemini 3.1 Flash Lite score almost the same on the Noometry Index (41.0 vs 40.8), so choose on price, context window or the category you care about most.

Last verified . 32 shared benchmarks.

Claude Opus 4.1 Anthropic

41.0

Rank #142 Confirmed

Gemini 3.1 Flash Lite Google

40.8

Rank #144 Confirmed

Summary

  • They share 32 benchmarks with published results for both. Claude Opus 4.1 scores higher in 7 categories and Gemini 3.1 Flash Lite in 3 categories; 8 gaps are clear of the uncertainty.
  • The widest gap is in math, where Gemini 3.1 Flash Lite leads 40.7 to 22.3.
  • The biggest single-benchmark swing is Chess Puzzles: 7% for Claude Opus 4.1 and 25% for Gemini 3.1 Flash Lite.
  • Gemini 3.1 Flash Lite is cheaper at $0.25 / $1.50 per million input/output tokens, against $15 / $75 for Claude Opus 4.1.
  • Gemini 3.1 Flash Lite accepts more context: 1.05M tokens versus 200K.

Side by side

Claude Opus 4.1 and Gemini 3.1 Flash Lite specifications
Claude Opus 4.1Gemini 3.1 Flash Lite
ProviderAnthropicGoogle
Noometry Index41.040.8
Released2025-08-052026-03-03
WeightsProprietaryProprietary
Context window200K1.05M
Max output32K66K
Input $ / M tokens$15$0.25
Output $ / M tokens$75$1.50
Results tracked4838

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Category by category

Coding Claude Opus 4.1 leads

Claude Opus 4.1: 44.4 (#73), Gemini 3.1 Flash Lite: 37.8 (#188)

Coding benchmarks
BenchmarkClaude Opus 4.1Gemini 3.1 Flash Lite
LMArena WebDev13901256
WeirdML45.9%52.2%
LMArena Coding14791400
ALE-Bench674.77797.73
SWE-bench Verified73.3%—
SciCode—41.9%
AlgoTune1.34—

Agentic & Tool Use Claude Opus 4.1 leads

Claude Opus 4.1: 35.0 (#41), Gemini 3.1 Flash Lite: 30.2 (#79)

Agentic & Tool Use benchmarks
BenchmarkClaude Opus 4.1Gemini 3.1 Flash Lite
DeepResearch Bench48.3%37.3%
Terminal-Bench38%—
GDPval43.6%—
Cybench42%—
LMArena Search1148—
METR Time Horizons66.8%—

Reasoning Claude Opus 4.1 leads

Claude Opus 4.1: 32.2 (#76), Gemini 3.1 Flash Lite: 22.9 (#186)

Reasoning benchmarks
BenchmarkClaude Opus 4.1Gemini 3.1 Flash Lite
Chess Puzzles7%25%
EnigmaEval7.2%3%
LMArena Hard Prompts14431407
DTBench80%76.8%
LMCA37.1%35%
Epoch Capabilities Index144.12144.47
ForecastBench6254.4
SimpleBench60%—
Kagi LLM Benchmark—67.2%
NYT Connections (extended)—8.2%
CritPt—1.1%
Thematic Generalization—63.3%
EBR-Bench7.9%—
Mystery Game Puzzles21%—

Math Gemini 3.1 Flash Lite leads

Claude Opus 4.1: 22.3 (#277), Gemini 3.1 Flash Lite: 40.7 (#90)

Math benchmarks
BenchmarkClaude Opus 4.1Gemini 3.1 Flash Lite
FrontierMath (Tiers 1-3)12.6%27.7%
OTIS Mock AIME 2024-202568.9%80%
LMArena Math14311428
FrontierMath Tier 42.4%—
FrontierMath (Feb 2025 set)7.2%—
FrontierMath Tier 4 (v1)4.2%—

Knowledge Too close to call

Claude Opus 4.1: 42.0 (#101), Gemini 3.1 Flash Lite: 41.9 (#104)

Knowledge benchmarks
BenchmarkClaude Opus 4.1Gemini 3.1 Flash Lite
GPQA Diamond77.3%81.8%
Humanity's Last Exam11.5%8.6%
Vectara Hallucination Rate11.8%8.2%
LMArena Expert14391398
Confabulations17.1%—

Multimodal Gemini 3.1 Flash Lite leads

Claude Opus 4.1: 26.8 (#119), Gemini 3.1 Flash Lite: 39.4 (#60)

Multimodal benchmarks
BenchmarkClaude Opus 4.1Gemini 3.1 Flash Lite
LMArena Vision—1240
VPCT35%—

Multilingual Too close to call

Claude Opus 4.1: 52.0 (#95), Gemini 3.1 Flash Lite: 52.3 (#86)

Multilingual benchmarks
BenchmarkClaude Opus 4.1Gemini 3.1 Flash Lite
LMArena Non-English14051411
LMArena Chinese14271461
LMArena French14311424
LMArena German14131429
LMArena Japanese13781413
LMArena Korean13801392
LMArena Russian14221420
LMArena Spanish14481421

Instruction Following Claude Opus 4.1 leads

Claude Opus 4.1: 75.6 (#58), Gemini 3.1 Flash Lite: 72.7 (#131)

Instruction Following benchmarks
BenchmarkClaude Opus 4.1Gemini 3.1 Flash Lite
LMArena Instruction Following14351377

Long Context Claude Opus 4.1 leads

Claude Opus 4.1: 44.5 (#63), Gemini 3.1 Flash Lite: 42.5 (#122)

Long Context benchmarks
BenchmarkClaude Opus 4.1Gemini 3.1 Flash Lite
LMArena Longer Query14551394

Writing & Preference Claude Opus 4.1 leads

Claude Opus 4.1: 62.4 (#74), Gemini 3.1 Flash Lite: 60.9 (#94)

Writing & Preference benchmarks
BenchmarkClaude Opus 4.1Gemini 3.1 Flash Lite
LMArena Text14191416
LMArena Creative Writing14121401
LMArena Multi-Turn14441417
Short-Story Creative Writing84.7%—

Frequently asked questions

Is Claude Opus 4.1 better than Gemini 3.1 Flash Lite?

Claude Opus 4.1 and Gemini 3.1 Flash Lite score almost the same on the Noometry Index (41.0 vs 40.8), so choose on price, context window or the category you care about most.

Which is cheaper, Claude Opus 4.1 or Gemini 3.1 Flash Lite?

Gemini 3.1 Flash Lite is cheaper. It lists at $0.25 per million input tokens and $1.50 per million output tokens; Claude Opus 4.1 lists at $15 and $75.

Is Claude Opus 4.1 or Gemini 3.1 Flash Lite better for coding?

Claude Opus 4.1 scores higher on coding benchmarks: 44.4 versus 37.8 in the Noometry coding category.

Which has the bigger context window?

Gemini 3.1 Flash Lite does, with 1.05M tokens against 200K.

How many benchmarks do Claude Opus 4.1 and Gemini 3.1 Flash Lite share?

32 benchmarks have published results for both models. Claude Opus 4.1 has 48 scored results on Noometry and Gemini 3.1 Flash Lite has 38.

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