Anthropic
Claude models, built around long agentic runs and tool use
Logo assets
Anthropic brand colours
Extracted from the artwork and ranked by how much of the mark each covers — not from a brand book, so treat them as observed rather than official.
What Anthropic is
Anthropic sells the Claude family through a first-party API, plus Bedrock, Vertex and Foundry. The current line-up spans Fable 5 at the top, Opus 4.8 as the workhorse and Sonnet 5 for volume — each with a one-million-token input window and a 128K output cap — plus Haiku 4.5 for latency, which is a 200K-window model rather than a million-token one. The platform's distinguishing features are graduated effort control, prompt caching with explicit breakpoints, and a managed agent surface — the things a long tool-calling loop actually needs.
Recent changes
- 2026-02-19Claude Sonnet 3.7 and Haiku 3.5 retired
Two widely deployed workhorse models went dark on the same day. Applications pinned to the dated snapshots had a hard cutover; those calling bare aliases had already been moved. A useful reminder that pinning buys you a deadline, not immunity.
- 2026-01-05Anthropic retires Claude Opus 3
The original Opus stopped serving and its model ID began returning 404. Anthropic had published the retirement date well in advance on its deprecations page — the clearest example in the category of a lab giving developers a fixed date to plan a migration against.