# Claude Sonnet 4 vs Gemini 2.5 Flash

Every finance benchmark where both have a score (Anthropic and Google). Data refreshed 2 Nov 2026. Scores from different benchmarks use different scales and are not added up.

| Benchmark | Metric | Claude Sonnet 4 | Claude Sonnet 4 source | Gemini 2.5 Flash | Gemini 2.5 Flash source | Ahead |
| --- | --- | --- | --- | --- | --- | --- |
| Advanced Financial Reasoning at Scale (CFA Level III evaluation) | overall % (mean of MCQ and essay) (higher is better) | 73.4 | Paper Table 1, 22 Sept 2025, https://arxiv.org/html/2507.02954v2 | 77.3 | Paper Table 1, 22 Sept 2025, https://arxiv.org/html/2507.02954v2 | Gemini 2.5 Flash |
| FAITH | overall accuracy % (higher is better) | 95.6 | Paper Table 3, 24 Oct 2025, https://arxiv.org/html/2508.05201v2 | 88.7 | Paper Table 3, 24 Oct 2025, https://arxiv.org/html/2508.05201v2 | Claude Sonnet 4 |

Source: https://benchmarks.finance/compare/claude-sonnet-4-vs-gemini-2-5-flash/

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