Anthropic is an American AI company based in San Francisco, organised as a public benefit corporation. It was started in 2021 by a group of former OpenAI staff and is known for the Claude family of models, offered in Opus, Sonnet and Haiku tiers.
- Founded
- 2021
- Type
- Private company
- Founders
- Dario Amodei, Daniela Amodei, Jared Kaplan, Jack Clark, Chris Olah, Ben Mann, Sam McCandlish and Tom Brown
- AI lab
- Inference provider
- 19 hosted endpoints
Model family
Claude
Anthropic Claude series of AI models.
Latest Claude models
Models in this family
24 catalogued models
24 models · 1–24
| Select models to compare | Model | Released | Context | Input /M | Output /M | Parameters | Type | I/O | Openness |
|---|---|---|---|---|---|---|---|---|---|
 Claude Fable 5.2Anthropic | November 7, 2026 | 1M | $8.00 | $40.00 | — | Text | text, image, file → text | Closed | |
| Claude Haiku 5.5Anthropic | October 7, 2026 | 1M | $0.10 | $0.50 | — | Text | text, image, file → text | Closed | |
| Claude Sonnet 5.5Anthropic | September 28, 2026 | 1M | $2.00 | $10.00 | — | Text | text, image, file → text | Closed | |
| Claude Opus 5.5Anthropic | September 22, 2026 | 1M | $4.00 | $20.00 | — | Text | text, image, file → text | Closed | |
| Claude Fable 5.1Anthropic | September 1, 2026 | 1M | $10.00 | $50.00 | — | Text | text, image, file → text | Closed | |
| Claude Mythos 5.1Anthropic | September 1, 2026 | 1M | — | — | — | Text | text, image, file → text | Closed | |
| Claude Opus 5Anthropic | July 24, 2026 | 1M | $5.00 | $25.00 | — | Text | text, image, file → text | Closed | |
| Claude Sonnet 5Anthropic | June 30, 2026 | 1M | $2.00 | $10.00 | — | Text | text, image, file → text | Closed | |
| Claude Fable 5Anthropic | June 9, 2026 | 1M | $10.00 | $50.00 | — | Text | text, image, file → text | Closed | |
| Claude Mythos 5Anthropic | June 9, 2026 | 1M | — | — | — | Text | text, image, file → text | Closed | |
| Claude Opus 4.8Anthropic | May 28, 2026 | 1M | $5.00 | $25.00 | — | Text | text, image, file → text | Closed | |
| Claude Opus 4.7Anthropic | April 16, 2026 | 1M | $5.00 | $25.00 | — | Text | text, image, file → text | Closed | |
| Claude Sonnet 4.6Anthropic | February 17, 2026 | 1M | $3.00 | $15.00 | — | Text | text, image, file → text | Closed | |
| Claude Opus 4.6Anthropic | February 5, 2026 | 1M | $5.00 | $25.00 | — | Text | text, image, file → text | Closed | |
| Claude Opus 4.5Anthropic | November 24, 2025 | 200K | $5.00 | $25.00 | — | Text | file, image, text → text | Closed | |
| Claude Haiku 4.5Anthropic | October 15, 2025 | 200K | $1.00 | $5.00 | — | Text | text, image, file → text | Closed | |
| Claude Sonnet 4.5Anthropic | September 29, 2025 | 1M | $3.00 | $15.00 | — | Text | text, image, file → text | Closed | |
| Claude Opus 4.1Anthropic | August 5, 2025 | 200K | $15.00 | $75.00 | — | Text | image, text, file → text | Closed | |
| Claude Opus 4Anthropic | May 22, 2025 | 200K | — | — | — | Text | text, image, file → text | Closed | |
| Claude Sonnet 4Anthropic | May 22, 2025 | 200K | — | — | — | Text | text, image, file → text | Closed | |
| Claude Sonnet 3.7Anthropic | February 19, 2025 | 200K | — | — | — | Text | text, image, file → text | Closed | |
| Claude Haiku 3.5Anthropic | October 22, 2024 | 200K | — | — | — | Text | text, image, file → text | Closed | |
| Claude Sonnet 3.5 v2Anthropic | October 22, 2024 | 200K | — | — | — | Text | text, image, file → text | Closed | |
| Claude Haiku 3Anthropic | March 13, 2024 | 200K | — | — | — | Text | text, image, file → text | Closed |