Category
coding
Claude Sonnet 4.5
Anthropic's coding- and agent-focused flagship in the Claude 4 family.
Sep 29, 2025200K ctxClaude Opus 4
Claude Opus 4 is Anthropic's top-tier model from the Claude 4 generation, released in May 2025 alongside Sonnet 4. It is built for long, autonomous coding and agent work, and can think at length while using tools.
May 22, 2025200K ctxClaude 3.5 Sonnet
Mid-tier 3.5 model that outperformed Claude 3 Opus on many tasks.
Jun 20, 2024200K ctx