Anthropic: AI model benchmarks
AI models from Anthropic. Rank among companies: #1. Strongest model: Claude Mythos 5.1 (Rating 2019, #1 overall, private). Best available: Claude Opus 5.5 (Rating 1986, #3 overall). Latest release: Claude Haiku 5.5 (Oct 7, 2026).
Current models, released in the last 18 months
| Rank | Model | Rating | Released | Access |
|---|---|---|---|---|
| 1 | Claude Mythos 5.1 | 2019 ± 29 | Sep 1, 2026 | Private |
| 2 | Claude Mythos 5 | 2009 ± 13 | Jun 9, 2026 | Private |
| 3 | Claude Opus 5.5 | 1986 ± 5 | Sep 22, 2026 | API |
| 4 | Claude Mythos Preview | 1984 ± 12 | Apr 7, 2026 | Private |
| 9 | Claude Fable 5.1 | 1958 ± 5 | Sep 1, 2026 | API |
| 11 | Claude Sonnet 5.5 | 1934 ± 7 | Sep 28, 2026 | API |
| 12 | Claude Opus 5 | 1931 ± 3 | Jul 24, 2026 | API |
| 16 | Claude Fable 5 | 1907 ± 4 | Jun 9, 2026 | API |
| 37 | Claude Opus 4.8 | 1839 ± 3 | May 28, 2026 | API |
| 40 | Claude Haiku 5.5 | 1836 ± 8 | Oct 7, 2026 | API |
| 49 | Claude Opus 4.7 | 1824 ± 3 | Apr 16, 2026 | API |
| 57 | Claude Sonnet 5 | 1812 ± 4 | Jun 30, 2026 | API |
| 63 | Claude Opus 4.6 | 1806 ± 2 | Feb 5, 2026 | API |
| 74 | Claude Opus 4.5 (20251101) | 1787 ± 9 | Nov 24, 2025 | API |
| 83 | Claude Opus 4.5 | 1779 ± 3 | Nov 24, 2025 | API |
| 90 | Claude Sonnet 4.6 | 1769 ± 2 | Feb 17, 2026 | API |
| 132 | Claude Opus 4.1 (20250805) | 1736 ± 10 | Aug 5, 2025 | API |
| 140 | Claude Opus 4.1 | 1733 ± 6 | Aug 5, 2025 | API |
| 142 | Claude Sonnet 4.5 | 1732 ± 2 | Sep 29, 2025 | API |
| 261 | Claude Haiku 4.5 (20251001) | 1674 ± 8 | Oct 15, 2025 | API |
Interactive version: theaggregate.ai/company?slug=anthropic · How It Works · Data refreshed daily, snapshot 2026-10-20.