# Claude Opus 5.5 vs DeepSeek V4.1 Flash

Every finance benchmark where both have a score (Anthropic and DeepSeek). Data refreshed 3 Nov 2026. Scores from different benchmarks use different scales and are not added up.

| Benchmark | Metric | Claude Opus 5.5 | Claude Opus 5.5 source | DeepSeek V4.1 Flash | DeepSeek V4.1 Flash source | Ahead |
| --- | --- | --- | --- | --- | --- | --- |
| Finance Agent Benchmark | Partial Credit accuracy % (v2.1) (higher is better) | 67.8 | Vals.ai leaderboard, 29 Oct 2026, https://www.vals.ai/benchmarks/fabv2-1 | 65.4 | Vals.ai leaderboard, 29 Oct 2026, https://www.vals.ai/benchmarks/fabv2-1 | Claude Opus 5.5 |
| Visa Agentic Commerce Benchmark | pass rate % (higher is better) | 62.2 | Visa Research, Oct 2026 snapshot, 5 Nov 2026, https://www.visapaymentsfrontier.io/#agentic-commerce-benchmark | 57.8 | Visa Research, Oct 2026 snapshot, 5 Nov 2026, https://www.visapaymentsfrontier.io/#agentic-commerce-benchmark | Claude Opus 5.5 |

Source: https://benchmarks.finance/compare/claude-opus-5-5-vs-deepseek-v4-1-flash/

Created and maintained by Moneda.