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.
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 | Gemini 1.0 Pro | |
|---|---|---|
| Provider | Anthropic | |
| Noometry Index | 68.5 | 27.1 |
| Released | 2026-09-22 | 2023-12-13 |
| Weights | Proprietary | Proprietary |
| Context window | 1M | — |
| Max output | 128K | — |
| Input $ / M tokens | $4 | — |
| Output $ / M tokens | $20 | — |
| Results tracked | 35 | 24 |
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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)
| Benchmark | Claude Opus 5.5 | Gemini 1.0 Pro |
|---|---|---|
| LMArena Coding | 1545 | 1108 |
| FrontierCode | 54.4% | — |
| CursorBench | 57.8% | — |
| LMArena WebDev | 1820 | — |
| FrontierSWE | 62.3% | — |
| SciCode | 66.9% | — |
| MirrorCode | 77.4% | — |
| HumanEval+ | — | 55.5% |
| MBPP+ | — | 61.4% |
Agentic & Tool Use Not comparable
Claude Opus 5.5: 45.3 (#13), Gemini 1.0 Pro: —
| Benchmark | Claude Opus 5.5 | Gemini 1.0 Pro |
|---|---|---|
| APEX-Agents | 73.5% | — |
| GDP.pdf | 30.6% | — |
Reasoning Claude Opus 5.5 leads
Claude Opus 5.5: 79.5 (#2), Gemini 1.0 Pro: 16.4 (#292)
| Benchmark | Claude Opus 5.5 | Gemini 1.0 Pro |
|---|---|---|
| LMArena Hard Prompts | 1545 | 1109 |
| DTBench | 98.9% | 45.9% |
| ARC-AGI-2 | 92.5% | — |
| NYT Connections (extended) | 88.5% | — |
| ARC-AGI-1 | 97.5% | — |
| CritPt | 31.7% | — |
| EBR-Bench | 71.4% | — |
| Mystery Game Puzzles | 71% | — |
| LMCA | 68.2% | — |
| 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)
| Benchmark | Claude Opus 5.5 | Gemini 1.0 Pro |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 100% | 1.1% |
| FrontierMath (Tiers 1-3) | 91.2% | — |
| FrontierMath Tier 4 | 95% | — |
| ProofBench | 100% | — |
| 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)
| Benchmark | Claude Opus 5.5 | Gemini 1.0 Pro |
|---|---|---|
| GPQA Diamond | 90.6% | 34% |
| LMArena Expert | 1564 | 1059 |
| SimpleQA Verified | 72.2% | — |
| MMLU | — | 70% |
Multimodal Not comparable
Claude Opus 5.5: 56.5 (#2), Gemini 1.0 Pro: —
| Benchmark | Claude Opus 5.5 | Gemini 1.0 Pro |
|---|---|---|
| Furniture Assembly | 83.3% | — |
Multilingual Claude Opus 5.5 leads
Claude Opus 5.5: 59.8 (#1), Gemini 1.0 Pro: 33.5 (#247)
| Benchmark | Claude Opus 5.5 | Gemini 1.0 Pro |
|---|---|---|
| LMArena Non-English | 1513 | 1138 |
| LMArena Chinese | 1572 | 1124 |
| LMArena Russian | 1532 | 1186 |
| 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)
| Benchmark | Claude Opus 5.5 | Gemini 1.0 Pro |
|---|---|---|
| LMArena Instruction Following | 1535 | 1114 |
Long Context Claude Opus 5.5 leads
Claude Opus 5.5: 47.3 (#18), Gemini 1.0 Pro: 34.3 (#244)
| Benchmark | Claude Opus 5.5 | Gemini 1.0 Pro |
|---|---|---|
| LMArena Longer Query | 1540 | 1132 |
Writing & Preference Claude Opus 5.5 leads
Claude Opus 5.5: 78.7 (#3), Gemini 1.0 Pro: 36.2 (#259)
| Benchmark | Claude Opus 5.5 | Gemini 1.0 Pro |
|---|---|---|
| LMArena Text | 1518 | 1149 |
| LMArena Creative Writing | 1538 | 1130 |
| LMArena Multi-Turn | 1520 | 1139 |
| EQ-Bench Creative Writing | 2050 | — |
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.