Model comparison

Claude Opus 5.5 vs Gemini 1.0 Pro

Claude Opus 5.5 is the stronger model overall, scoring 68.5 to 27.1 on the Noometry Index.

Last verified . 14 shared benchmarks.

Claude Opus 5.5 Anthropic

68.5

Rank #3 Confirmed

Gemini 1.0 Pro Google

27.1

Rank #327 Confirmed

Summary

  • They share 14 benchmarks with published results for both. Claude Opus 5.5 scores higher in 8 categories and Gemini 1.0 Pro in 0 categories; 8 gaps are clear of the uncertainty.
  • The widest gap is in math, where Claude Opus 5.5 leads 92.4 to 8.7.
  • The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 100% for Claude Opus 5.5 and 1.1% for Gemini 1.0 Pro.

Side by side

Claude Opus 5.5 and Gemini 1.0 Pro specifications
Claude Opus 5.5Gemini 1.0 Pro
ProviderAnthropicGoogle
Noometry Index68.527.1
Released2026-09-222023-12-13
WeightsProprietaryProprietary
Context window1M—
Max output128K—
Input $ / M tokens$4—
Output $ / M tokens$20—
Results tracked3524

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Category by category

Coding Claude Opus 5.5 leads

Claude Opus 5.5: 71.4 (#1), Gemini 1.0 Pro: 31.6 (#270)

Coding benchmarks
BenchmarkClaude Opus 5.5Gemini 1.0 Pro
LMArena Coding15451108
FrontierCode54.4%—
CursorBench57.8%—
LMArena WebDev1820—
FrontierSWE62.3%—
SciCode66.9%—
MirrorCode77.4%—
HumanEval+—55.5%
MBPP+—61.4%

Agentic & Tool Use Not comparable

Claude Opus 5.5: 45.3 (#13), Gemini 1.0 Pro: —

Agentic & Tool Use benchmarks
BenchmarkClaude Opus 5.5Gemini 1.0 Pro
APEX-Agents73.5%—
GDP.pdf30.6%—

Reasoning Claude Opus 5.5 leads

Claude Opus 5.5: 79.5 (#2), Gemini 1.0 Pro: 16.4 (#292)

Reasoning benchmarks
BenchmarkClaude Opus 5.5Gemini 1.0 Pro
LMArena Hard Prompts15451109
DTBench98.9%45.9%
ARC-AGI-292.5%—
NYT Connections (extended)88.5%—
ARC-AGI-197.5%—
CritPt31.7%—
EBR-Bench71.4%—
Mystery Game Puzzles71%—
LMCA68.2%—
Epoch Capabilities Index—116.97

Math Claude Opus 5.5 leads

Claude Opus 5.5: 92.4 (#2), Gemini 1.0 Pro: 8.7 (#315)

Math benchmarks
BenchmarkClaude Opus 5.5Gemini 1.0 Pro
OTIS Mock AIME 2024-2025100%1.1%
FrontierMath (Tiers 1-3)91.2%—
FrontierMath Tier 495%—
ProofBench100%—
LMArena Math—1132
MATH Level 5—11.2%

Knowledge Claude Opus 5.5 leads

Claude Opus 5.5: 66.6 (#9), Gemini 1.0 Pro: 15.5 (#286)

Knowledge benchmarks
BenchmarkClaude Opus 5.5Gemini 1.0 Pro
GPQA Diamond90.6%34%
LMArena Expert15641059
SimpleQA Verified72.2%—
MMLU—70%

Multimodal Not comparable

Claude Opus 5.5: 56.5 (#2), Gemini 1.0 Pro: —

Multimodal benchmarks
BenchmarkClaude Opus 5.5Gemini 1.0 Pro
Furniture Assembly83.3%—

Multilingual Claude Opus 5.5 leads

Claude Opus 5.5: 59.8 (#1), Gemini 1.0 Pro: 33.5 (#247)

Multilingual benchmarks
BenchmarkClaude Opus 5.5Gemini 1.0 Pro
LMArena Non-English15131138
LMArena Chinese15721124
LMArena Russian15321186
LMArena French—1144
LMArena German—1125
LMArena Japanese—1023
LMArena Spanish—1118

Instruction Following Claude Opus 5.5 leads

Claude Opus 5.5: 80.1 (#2), Gemini 1.0 Pro: 57.9 (#262)

Instruction Following benchmarks
BenchmarkClaude Opus 5.5Gemini 1.0 Pro
LMArena Instruction Following15351114

Long Context Claude Opus 5.5 leads

Claude Opus 5.5: 47.3 (#18), Gemini 1.0 Pro: 34.3 (#244)

Long Context benchmarks
BenchmarkClaude Opus 5.5Gemini 1.0 Pro
LMArena Longer Query15401132

Writing & Preference Claude Opus 5.5 leads

Claude Opus 5.5: 78.7 (#3), Gemini 1.0 Pro: 36.2 (#259)

Writing & Preference benchmarks
BenchmarkClaude Opus 5.5Gemini 1.0 Pro
LMArena Text15181149
LMArena Creative Writing15381130
LMArena Multi-Turn15201139
EQ-Bench Creative Writing2050—

Frequently asked questions

Is Claude Opus 5.5 better than Gemini 1.0 Pro?

Claude Opus 5.5 is the stronger model overall, scoring 68.5 to 27.1 on the Noometry Index.

Is Claude Opus 5.5 or Gemini 1.0 Pro better for coding?

Claude Opus 5.5 scores higher on coding benchmarks: 71.4 versus 31.6 in the Noometry coding category.

How many benchmarks do Claude Opus 5.5 and Gemini 1.0 Pro share?

14 benchmarks have published results for both models. Claude Opus 5.5 has 35 scored results on Noometry and Gemini 1.0 Pro has 24.

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