# Claude 2 vs Gemini 2.5 Flash

> Gemini 2.5 Flash is the stronger model overall, scoring 39.0 to 24.7 on the Noometry Index.

- Canonical page: https://noometry.com/compare/claude-2-vs-gemini-2-5-flash
- Last updated: 2026-10-10
- Shared benchmarks: 3

## Summary

- They share 3 benchmarks with published results for both. Claude 2 scores higher in 1 category and Gemini 2.5 Flash in 2 categories; 3 gaps are clear of the uncertainty.
- The widest gap is in math, where Gemini 2.5 Flash leads 38.1 to 8.7.
- The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 2.5% for Claude 2 and 73.1% for Gemini 2.5 Flash.

## Snapshot

| | Claude 2 | Gemini 2.5 Flash |
|---|---|---|
| Provider | Anthropic | Google |
| Noometry Index | 24.7 | 39.0 |
| Rank | 342 | 162 |
| Context | — | 1.05M |
| Input $/M | — | $0.30 |
| Output $/M | — | $2.50 |
| Weights | Proprietary | Proprietary |

## Coding

- Claude 2: —
- Gemini 2.5 Flash: 35.5 (#210)

| Benchmark | Claude 2 | Gemini 2.5 Flash |
|---|---|---|
| SWE-bench Verified (bash only) | — | 28.7% |
| Aider Polyglot | — | 55.1% |
| WeirdML | — | 41.9% |
| LMArena Coding | — | 1424 |
| ALE-Bench | — | 661.88 |
| HumanEval+ | 61.6% | — |

## Agentic & Tool Use

- Claude 2: —
- Gemini 2.5 Flash: 30.6 (#67)

| Benchmark | Claude 2 | Gemini 2.5 Flash |
|---|---|---|
| Terminal-Bench | — | 17.1% |
| Berkeley Function Calling Leaderboard | — | 56.2% |
| TheAgentCompany | — | 41.1% |
| BALROG | — | 33.5% |
| Vending-Bench 2 | — | 548.84 |

## Reasoning

- Claude 2: 20.8 (#213)
- Gemini 2.5 Flash: 18.2 (#271)

| Benchmark | Claude 2 | Gemini 2.5 Flash |
|---|---|---|
| DTBench | 51.9% | 76.5% |
| Epoch Capabilities Index | 120.08 | 143.04 |
| ARC-AGI-2 | — | 2.5% |
| SimpleBench | — | 41.2% |
| Kagi LLM Benchmark | — | 56.8% |
| ARC-AGI-1 | — | 33.3% |
| CritPt | — | 1.1% |
| EnigmaEval | — | 2.7% |
| LMArena Hard Prompts | — | 1422 |
| LMCA | — | 27.5% |
| ForecastBench | — | 60.6 |

## Math

- Claude 2: 8.7 (#314)
- Gemini 2.5 Flash: 38.1 (#87)

| Benchmark | Claude 2 | Gemini 2.5 Flash |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 2.5% | 73.1% |
| Omni-MATH | — | 38.5% |
| LMArena Math | — | 1415 |
| MATH Level 5 | 11.7% | — |
| FrontierMath (Feb 2025 set) | — | 4.8% |
| FrontierMath Tier 4 (v1) | — | 4.2% |

## Knowledge

- Claude 2: 17.0 (#282)
- Gemini 2.5 Flash: 36.1 (#162)

| Benchmark | Claude 2 | Gemini 2.5 Flash |
|---|---|---|
| GPQA Diamond | 34.7% | — |
| Humanity's Last Exam | — | 12.1% |
| MMLU-Pro | — | 63.9% |
| Confabulations | — | 16.8% |
| Vectara Hallucination Rate | — | 7.8% |
| GPQA (HELM) | — | 39% |
| LMArena Expert | — | 1426 |
| MMLU | 78.5% | — |
| TriviaQA | 87.5% | — |

## Multimodal

- Claude 2: —
- Gemini 2.5 Flash: 41.2 (#31)

| Benchmark | Claude 2 | Gemini 2.5 Flash |
|---|---|---|
| LMArena Vision | — | 1254 |
| GeoBench | — | 76% |
| VPCT | — | 46.2% |
| SpatialViz-Bench | — | 36.9% |

## Multilingual

- Claude 2: —
- Gemini 2.5 Flash: 52.5 (#83)

| Benchmark | Claude 2 | Gemini 2.5 Flash |
|---|---|---|
| LMArena Non-English | — | 1410 |
| LMArena Chinese | — | 1450 |
| LMArena French | — | 1433 |
| LMArena German | — | 1419 |
| LMArena Japanese | — | 1403 |
| LMArena Korean | — | 1385 |
| LMArena Russian | — | 1415 |
| LMArena Spanish | — | 1421 |

## Instruction Following

- Claude 2: —
- Gemini 2.5 Flash: 75.9 (#50)

| Benchmark | Claude 2 | Gemini 2.5 Flash |
|---|---|---|
| IFEval | — | 89.8% |
| LMArena Instruction Following | — | 1405 |

## Long Context

- Claude 2: —
- Gemini 2.5 Flash: 47.5 (#16)

| Benchmark | Claude 2 | Gemini 2.5 Flash |
|---|---|---|
| Fiction.LiveBench | — | 77.8% |
| LMArena Longer Query | — | 1419 |

## Writing & Preference

- Claude 2: —
- Gemini 2.5 Flash: 54.0 (#153)

| Benchmark | Claude 2 | Gemini 2.5 Flash |
|---|---|---|
| LMArena Text | — | 1417 |
| LMArena Creative Writing | — | 1400 |
| Short-Story Creative Writing | — | 76.5% |
| EQ-Bench Creative Writing | — | 1137 |
| WildBench | — | 81.7% |
| LMArena Multi-Turn | — | 1408 |

## FAQ

### Is Claude 2 better than Gemini 2.5 Flash?

Gemini 2.5 Flash is the stronger model overall, scoring 39.0 to 24.7 on the Noometry Index.

### How many benchmarks do Claude 2 and Gemini 2.5 Flash share?

3 benchmarks have published results for both models. Claude 2 has 8 scored results on Noometry and Gemini 2.5 Flash has 54.