Claude (language model)
| Claude | |
|---|---|
| Screenshot Screenshot of an example of Claude 4 Sonnet answer describing Wikipedia | |
| Developer(s) | Anthropic | 
| Initial release | March 2023 | 
| Stable release | Claude 4 Opus / May 22, 2025 Claude 4 Sonnet / May 22, 2025 | 
| Type | |
| License | Proprietary | 
| Website | claude | 
Claude is a family of large language models developed by Anthropic. The first model was released in March 2023.
The Claude 3 family, released in March 2024, consists of three models: Haiku, optimized for speed; Sonnet, which balances capability and performance; and Opus, designed for complex reasoning tasks. These models can process both text and images, with Claude 3 Opus demonstrating enhanced capabilities in areas like mathematics, programming, and logical reasoning compared to previous versions. Claude 4, which includes Opus and Sonnet, was released in May 2025.