Claude Opus 4.5 (20251101) (High): benchmark results
Provider: Anthropic. Released 2025-11-01. Access: API.
Unified ELO 1667 ± 1, rank #191 of 1761 rated models, from 39 benchmark results.
Strongest benchmark results
| Benchmark | Score | Metric | Percentile |
|---|---|---|---|
| Chatbot Arena (Text - Coding) | 1530 | Arena Score | 97 |
| Chatbot Arena (Text - Instruction Following) | 1483 | Arena Score | 96.7 |
| Chatbot Arena (Text - Creative Writing) | 1469 | Arena Score | 96.6 |
| Chatbot Arena (Text - Longer Query) | 1494 | Arena Score | 95.6 |
| Chatbot Arena (Text - Multi-Turn) | 1487 | Arena Score | 95 |
| DeepResearchBench | 54.8 | Average Score | 95 |
| Chatbot Arena (Text - English) | 1483 | Arena Score | 94.5 |
| Chatbot Arena (Text - Hard Prompts) | 1499 | Arena Score | 94 |
| Chatbot Arena (Text - Spanish) | 1474 | Arena Score | 93.9 |
| Chatbot Arena (Text - German) | 1477 | Arena Score | 92.7 |
| Chatbot Arena (Text) | 1473 | Elo | 91.9 |
| Chatbot Arena (Text - French) | 1492 | Arena Score | 90.4 |
Interactive version: theaggregate.ai/model?slug=claude-opus-4-5-20251101-high · How It Works · Data refreshed daily, snapshot 2026-09-05.