Noometry

Model comparison

Claude Opus 4.6 vs Gemini 3.6 Flash

Claude Opus 4.6 is the stronger model overall, scoring 58.3 to 54.1 on the Noometry Index. Gemini 3.6 Flash costs 6.7× less per token, which makes it the better buy when Claude Opus 4.6's lead doesn't matter for your workload.

Last verified . 41 shared benchmarks.

Claude Opus 4.6 Anthropic

58.3

Rank #18 Confirmed

Gemini 3.6 Flash Google

54.1

Rank #30 Confirmed

Summary

  • They share 41 benchmarks with published results for both. Claude Opus 4.6 scores higher in 7 categories and Gemini 3.6 Flash in 3 categories; 10 gaps are clear of the uncertainty.
  • The widest gap is in agentic & tool use, where Claude Opus 4.6 leads 51.0 to 32.4.
  • The biggest single-benchmark swing is Chess Puzzles: 17% for Claude Opus 4.6 and 43% for Gemini 3.6 Flash.
  • Gemini 3.6 Flash is cheaper at $0.75 / $3.75 per million input/output tokens, against $5 / $25 for Claude Opus 4.6.
  • Gemini 3.6 Flash accepts more context: 1.05M tokens versus 1M.

Side by side

Claude Opus 4.6Gemini 3.6 Flash
ProviderAnthropicGoogle
Noometry Index58.354.1
Released2026-02-042026-07-21
WeightsProprietaryProprietary
Context window1M1.05M
Max output128K66K
Input $ / M tokens$5$0.75
Output $ / M tokens$25$3.75
Results tracked6846

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Category by category

Coding Claude Opus 4.6 leads

Claude Opus 4.6: 57.7 (#15), Gemini 3.6 Flash: 49.6 (#45)

BenchmarkClaude Opus 4.6Gemini 3.6 Flash
FrontierCode26.6%34.4%
LMArena WebDev15461536
WeirdML78%56.1%
LMArena Coding15351492
ALE-Bench996.5715.52
SWE-bench Verified78.7%—
DeepSWE—46.7%
SWE-bench Verified (bash only)75.6%—
SWE-bench Multilingual72%—
SciCode—52.7%
GSO41.2%—
AlgoTune1.47—

Agentic & Tool Use Claude Opus 4.6 leads

Claude Opus 4.6: 51.0 (#4), Gemini 3.6 Flash: 32.4 (#56)

BenchmarkClaude Opus 4.6Gemini 3.6 Flash
APEX-Agents46.3%46.9%
Terminal-Bench79.8%—
Remote Labor Index4.2%—
τ²-bench Banking27.3%—
Cybench93%—
DeepResearch Bench55.3%—
GBAEval44.1%—
GDP.pdf—14%
LMArena Search1253—
METR Time Horizons78.9%—
Vending-Bench 28,018—

Reasoning Gemini 3.6 Flash leads

Claude Opus 4.6: 57.7 (#21), Gemini 3.6 Flash: 58.9 (#20)

BenchmarkClaude Opus 4.6Gemini 3.6 Flash
ARC-AGI-269.2%60.4%
NYT Connections (extended)92.1%89%
ARC-AGI-194%91.2%
Chess Puzzles17%43%
LMArena Hard Prompts15271486
Mystery Game Puzzles25%30%
DTBench91.2%95.5%
LMCA55.8%44.9%
Epoch Capabilities Index155.36154.36
SimpleBench67.6%—
Kagi LLM Benchmark83.6%—
CritPt—10.6%
EnigmaEval7.6%—
Thematic Generalization80.6%—
EBR-Bench12.7%—
ForecastBench60—

Math Claude Opus 4.6 leads

Claude Opus 4.6: 62.7 (#25), Gemini 3.6 Flash: 57.0 (#33)

BenchmarkClaude Opus 4.6Gemini 3.6 Flash
FrontierMath (Tiers 1-3)66%58.9%
FrontierMath Tier 426.8%22%
MathArena Final-Answer Competitions78.5%70.8%
OTIS Mock AIME 2024-202594.4%94.2%
ProofBench50%36%
LMArena Math15171504
FrontierMath (Feb 2025 set)40.7%—
FrontierMath Tier 4 (v1)22.9%—

Knowledge Gemini 3.6 Flash leads

Claude Opus 4.6: 61.8 (#23), Gemini 3.6 Flash: 67.8 (#7)

BenchmarkClaude Opus 4.6Gemini 3.6 Flash
GPQA Diamond90.5%94.1%
SimpleQA Verified47%66.2%
LMArena Expert15461489
Humanity's Last Exam34.4%—
Vectara Hallucination Rate12.2%—

Multimodal Gemini 3.6 Flash leads

Claude Opus 4.6: 37.0 (#67), Gemini 3.6 Flash: 38.7 (#55)

BenchmarkClaude Opus 4.6Gemini 3.6 Flash
LMArena Vision13161297
Furniture Assembly28.3%23.3%
LMArena Document15071456
Blueprint-Bench 2—31.2%

Multilingual Claude Opus 4.6 leads

Claude Opus 4.6: 58.2 (#4), Gemini 3.6 Flash: 56.8 (#17)

BenchmarkClaude Opus 4.6Gemini 3.6 Flash
LMArena Non-English14901470
LMArena Chinese15511530
LMArena French15131501
LMArena German15041478
LMArena Japanese14841477
LMArena Korean14651435
LMArena Russian14971490
LMArena Spanish15121477

Instruction Following Claude Opus 4.6 leads

Claude Opus 4.6: 79.7 (#3), Gemini 3.6 Flash: 77.2 (#27)

BenchmarkClaude Opus 4.6Gemini 3.6 Flash
LMArena Instruction Following15231467

Long Context Claude Opus 4.6 leads

Claude Opus 4.6: 48.1 (#13), Gemini 3.6 Flash: 45.1 (#47)

BenchmarkClaude Opus 4.6Gemini 3.6 Flash
LMArena Longer Query15201475
CL-bench20.7%—
CL-bench Life17%—

Writing & Preference Claude Opus 4.6 leads

Claude Opus 4.6: 73.7 (#9), Gemini 3.6 Flash: 68.3 (#26)

BenchmarkClaude Opus 4.6Gemini 3.6 Flash
LMArena Text15041478
LMArena Creative Writing15061464
EQ-Bench Creative Writing18091604
LMArena Multi-Turn15141481
EQ-Bench 41223—

Frequently asked questions

Is Claude Opus 4.6 better than Gemini 3.6 Flash?

Claude Opus 4.6 is the stronger model overall, scoring 58.3 to 54.1 on the Noometry Index. Gemini 3.6 Flash costs 6.7× less per token, which makes it the better buy when Claude Opus 4.6's lead doesn't matter for your workload.

Which is cheaper, Claude Opus 4.6 or Gemini 3.6 Flash?

Gemini 3.6 Flash is cheaper. It lists at $0.75 per million input tokens and $3.75 per million output tokens; Claude Opus 4.6 lists at $5 and $25.

Is Claude Opus 4.6 or Gemini 3.6 Flash better for coding?

Claude Opus 4.6 scores higher on coding benchmarks: 57.7 versus 49.6 in the Noometry coding category.

Which has the bigger context window?

Gemini 3.6 Flash does, with 1.05M tokens against 1M.

How many benchmarks do Claude Opus 4.6 and Gemini 3.6 Flash share?

41 benchmarks have published results for both models. Claude Opus 4.6 has 68 scored results on Noometry and Gemini 3.6 Flash has 46.

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