pi v0.82.1 adds Claude Opus 5 support

pi v0.82.1 was published on July 25, 2026, with three notable changes.

The headline feature is support for Claude Opus 5, Anthropic’s newest flagship model. It is available through both the Anthropic provider and Amazon Bedrock, with adaptive thinking (including the xhigh level), inference profiles, and prompt caching all wired up.

The release also adds bearer authentication for Anthropic-compatible gateways. Setting the ANTHROPIC_AUTH_TOKEN environment variable lets pi authenticate against gateways that require an Authorization: Bearer header, and the mechanism covers internal calls such as compaction and branch summaries too.

Finally, model catalogs got faster and more resilient. Catalogs served from pi.dev now revalidate with If-None-Match, so unchanged providers answer with an empty 304 response instead of a full payload, and llama.cpp models remain listed across restarts instead of disappearing.

This is an incremental release with no breaking changes listed. Users on earlier 0.82.x versions can update directly. The full notes, including links to the relevant documentation sections (Providers, Environment Variables, llama.cpp), are on the GitHub release page.