2 posts tagged with "Claude Opus 5.5"

Claude Opus 5.5 is now on the Felo API with a 1M-token context window, cached input rates, and an Anthropic-compatible Messages endpoint. Here is what caching actually does to the cost of a long-running agent.

Claude Opus 5.5 is live in Felo Search: 1M context, $4/$20 per million tokens, and answers verified against the evidence before you act on them.