# Claude Sonnet 4.5 vs Grok 4

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

| Benchmark | Metric | Claude Sonnet 4.5 | Claude Sonnet 4.5 source | Grok 4 | Grok 4 source | Ahead |
| --- | --- | --- | --- | --- | --- | --- |
| Market-Bench | mean MAE (lower is better) | 5126.8 | marketbench.ai leaderboard, date not stated, https://marketbench.ai | 443.2 | marketbench.ai leaderboard, date not stated, https://marketbench.ai | Grok 4 |
| FinDeepResearch | overall accuracy score (0-100) (higher is better) | 25.8 | OpenFinArena leaderboard, 15 Oct 2025, https://openfinarena.com/fin-deep-research | 37.3 | OpenFinArena leaderboard, 15 Oct 2025, https://openfinarena.com/fin-deep-research | Grok 4 |

Source: https://benchmarks.finance/compare/claude-sonnet-4-5-vs-grok-4/

Created and maintained by Moneda.