Model comparison

Claude Opus 5 vs Gemini 1.5 Flash (May 2024)

Claude Opus 5 is the stronger model overall, scoring 67.8 to 33.2 on the Noometry Index.

Last verified . 24 shared benchmarks.

Claude Opus 5 Anthropic

67.8

Rank #4 Confirmed

Gemini 1.5 Flash (May 2024) Google

33.2

Rank #246 Confirmed

Summary

  • They share 24 benchmarks with published results for both. Claude Opus 5 scores higher in 10 categories and Gemini 1.5 Flash (May 2024) in 0 categories; 10 gaps are clear of the uncertainty.
  • The widest gap is in math, where Claude Opus 5 leads 86.2 to 22.1.
  • The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 98.9% for Claude Opus 5 and 16.3% for Gemini 1.5 Flash (May 2024).

Side by side

Claude Opus 5 and Gemini 1.5 Flash (May 2024) specifications
Claude Opus 5Gemini 1.5 Flash (May 2024)
ProviderAnthropicGoogle
Noometry Index67.833.2
Released2026-07-242024-05-14
WeightsProprietaryProprietary
Context window1M—
Max output128K—
Input $ / M tokens$5—
Output $ / M tokens$25—
Results tracked5742

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Category by category

Coding Claude Opus 5 leads

Claude Opus 5: 67.5 (#5), Gemini 1.5 Flash (May 2024): 34.4 (#236)

Coding benchmarks
BenchmarkClaude Opus 5Gemini 1.5 Flash (May 2024)
WeirdML91.8%24.9%
LMArena Coding15341261
DeepSWE73.6%—
FrontierCode53.4%—
CursorBench46.6%—
LMArena WebDev1691—
FrontierSWE52%—
SciCode56.4%—
BigCodeBench Instruct—43.5%
BigCodeBench Complete—55.1%
ALE-Bench2,165—
HumanEval+—75.6%
MBPP+—67.5%

Agentic & Tool Use Claude Opus 5 leads

Claude Opus 5: 55.6 (#1), Gemini 1.5 Flash (May 2024): 26.6 (#102)

Agentic & Tool Use benchmarks
BenchmarkClaude Opus 5Gemini 1.5 Flash (May 2024)
BALROG63.4%14.6%
APEX-Agents65.8%—
OSWorld 2.031.4%—
τ²-bench Banking48.7%—
PostTrainBench35%—
GBAEval79.6%—
GDP.pdf24%—
Vending-Bench 211,182—

Reasoning Claude Opus 5 leads

Claude Opus 5: 77.2 (#4), Gemini 1.5 Flash (May 2024): 21.7 (#215)

Reasoning benchmarks
BenchmarkClaude Opus 5Gemini 1.5 Flash (May 2024)
LMArena Hard Prompts15261257
DTBench97.9%53.8%
Epoch Capabilities Index162.78129.36
ARC-AGI-290.4%—
SimpleBench80.6%—
NYT Connections (extended)94.3%—
ARC-AGI-197.5%—
CritPt29.1%—
Chess Puzzles42%—
EBR-Bench45.7%—
Mystery Game Puzzles59%—
LMCA64.5%—
Bench to the Future 30.12—
ForecastBench—53.9
PIQA—87.5%

Math Claude Opus 5 leads

Claude Opus 5: 86.2 (#8), Gemini 1.5 Flash (May 2024): 22.1 (#281)

Math benchmarks
BenchmarkClaude Opus 5Gemini 1.5 Flash (May 2024)
OTIS Mock AIME 2024-202598.9%16.3%
LMArena Math15311269
FrontierMath (Tiers 1-3)85.6%—
FrontierMath Tier 473.2%—
ProofBench99%—
Omni-MATH—30.4%
MATH Level 5—61.9%
FrontierMath (Feb 2025 set)—0%
GSM8K—82.4%

Knowledge Claude Opus 5 leads

Claude Opus 5: 66.8 (#9), Gemini 1.5 Flash (May 2024): 26.2 (#260)

Knowledge benchmarks
BenchmarkClaude Opus 5Gemini 1.5 Flash (May 2024)
GPQA Diamond93.9%47.3%
LMArena Expert15571233
SimpleQA Verified59.9%—
MMLU-Pro—67.8%
GPQA (HELM)—43.7%
BoolQ—85.8%
MMLU—77.9%

Multimodal Claude Opus 5 leads

Claude Opus 5: 50.8 (#8), Gemini 1.5 Flash (May 2024): 36.0 (#81)

Multimodal benchmarks
BenchmarkClaude Opus 5Gemini 1.5 Flash (May 2024)
LMArena Vision13191141
Video-MME—70.3%
GeoBench—76%
Blueprint-Bench 230.4%—
Furniture Assembly60.8%—
LMArena Document1516—

Multilingual Claude Opus 5 leads

Claude Opus 5: 58.8 (#4), Gemini 1.5 Flash (May 2024): 42.9 (#189)

Multilingual benchmarks
BenchmarkClaude Opus 5Gemini 1.5 Flash (May 2024)
LMArena Non-English15011278
LMArena Chinese15741295
LMArena French15191258
LMArena German15241262
LMArena Japanese15161252
LMArena Korean15211221
LMArena Russian15071288
LMArena Spanish15191243

Instruction Following Claude Opus 5 leads

Claude Opus 5: 79.2 (#7), Gemini 1.5 Flash (May 2024): 66.8 (#205)

Instruction Following benchmarks
BenchmarkClaude Opus 5Gemini 1.5 Flash (May 2024)
LMArena Instruction Following15171258
IFEval—83.1%

Long Context Claude Opus 5 leads

Claude Opus 5: 46.5 (#21), Gemini 1.5 Flash (May 2024): 39.0 (#187)

Long Context benchmarks
BenchmarkClaude Opus 5Gemini 1.5 Flash (May 2024)
LMArena Longer Query15151284

Writing & Preference Claude Opus 5 leads

Claude Opus 5: 79.2 (#1), Gemini 1.5 Flash (May 2024): 48.7 (#196)

Writing & Preference benchmarks
BenchmarkClaude Opus 5Gemini 1.5 Flash (May 2024)
LMArena Text15071287
LMArena Creative Writing14911285
LMArena Multi-Turn14991253
EQ-Bench Creative Writing2133—
WildBench—79.2%
EQ-Bench 41385—

Frequently asked questions

Is Claude Opus 5 better than Gemini 1.5 Flash (May 2024)?

Claude Opus 5 is the stronger model overall, scoring 67.8 to 33.2 on the Noometry Index.

Is Claude Opus 5 or Gemini 1.5 Flash (May 2024) better for coding?

Claude Opus 5 scores higher on coding benchmarks: 67.5 versus 34.4 in the Noometry coding category.

How many benchmarks do Claude Opus 5 and Gemini 1.5 Flash (May 2024) share?

24 benchmarks have published results for both models. Claude Opus 5 has 57 scored results on Noometry and Gemini 1.5 Flash (May 2024) has 42.

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