Anthropic launched Claude Opus 5 at the same price as Opus 4.8, setting new records on coding and knowledge work benchmarks while approaching the frontier intelligence of Fable 5 and becoming the default on Claude Max.
Claude is now generally available in Microsoft Foundry, hosted on Azure and running on NVIDIA GB300 Blackwell Ultra, with zero data retention and Azure-native governance, giving teams a faster path from agent experimentation to production.
A practical guide to the Claude API covering the Fable/Opus/Sonnet/Haiku model lineup, the Messages API, tool use, streaming, thinking, Claude Code, the Agent SDK, and per-token pricing.