Anthropic AI models
17 current Anthropic models on AIblogly. The newest is Claude Haiku 5.5, released 7 October 2026. The highest Anthropic model on LMArena’s text leaderboard is Claude Opus 5.5, at rank 2.
Current Anthropic models
| Model | Type | Released | Price | LMArena rank |
|---|---|---|---|---|
| Claude Haiku 5.5 | Text | 7 October 2026 | $0.10 / $0.50 per 1M tokens (prompts up to 100K; $0.50 / $2.50 over) | #126 |
| Claude Sonnet 5.5 | Text | 28 September 2026 | $2 / $10 per 1M tokens | #29 |
| Claude Opus 5.5 | Text | 22 September 2026 | $4 / $20 per 1M tokens | #2 |
| Claude Fable 5.1 | Text | 1 September 2026 | $10 / $50 per 1M tokens | #5 |
| Claude Opus 5 | Text | 24 July 2026 | $5 / $25 per 1M tokens | #14 |
| Claude Sonnet 5 | Text | 30 June 2026 | $2 / $10 per 1M tokens | #58 |
| Claude Fable 5 | Text | 9 June 2026 | $10 / $50 per 1M tokens | #4 |
| Claude Opus 4.8 | Text | 28 May 2026 | $5 / $25 per 1M tokens | #40 |
| Claude Opus 4.7 | Text | 16 April 2026 | $5 / $25 per 1M tokens | #11 |
| Claude Sonnet 4.6 | Text | 17 February 2026 | $3 / $15 per 1M tokens | #45 |
| Claude Opus 4.6 | Text | 5 February 2026 | $5 / $25 per 1M tokens | #8 |
| Claude Haiku 4.5 | Text | 15 October 2025 | $1 / $5 per 1M tokens | #144 |
| Claude Opus 4.5 | Text | — | $5 / $25 per 1M tokens | #48 |
| Claude Sonnet 4.5 | Text | — | $3 / $15 per 1M tokens | #72 |
| Claude Opus 4.1 | Text | — | $15 / $75 per 1M tokens | #82 |
| Claude Opus 4 Thinking 16K | Text | — | $15 / $75 per 1M tokens | #121 |
| Claude Sonnet 4 Thinking 32K | Text | — | $3 / $15 per 1M tokens | #162 |
Frequently asked questions
What is Anthropic's newest AI model?+
Of the Anthropic models listed here, the most recently released is Claude Haiku 5.5, released on 7 October 2026.
Which Anthropic model ranks highest on LMArena?+
Claude Opus 5.5, at rank 2 on LMArena's text leaderboard (Elo 1509). The full table is at aiblogly.com/benchmarks.