2026-07-01-pi-coding-agent-v0-80-3-adds-claude-sonnet-5-support-anthropic-compatibl

v0.80.3 adds Claude Sonnet 5 support (Anthropic-compatible + Bedrock, adaptive thinking) and switches the default OpenAI model to gpt-5.5 (channel: tagged-release, 2026-06-30). Operator consequence: Observe: model-catalog change. Operators on OpenAI defaults will silently move to gpt-5.5 on upgrade to v0.80.3; those wanting Claude Sonnet 5 now get it through inherited Anthropic-compatible and Bedrock catalogs with adaptive thinking enabled. Re-check /model defaults and any pinned model config after upgrading. Full receipted detail lives in harvest/watchlist.md.

Receipt

https://github.com/earendil-works/pi/releases/tag/v0.80.3

Finding metadata

Confidence: high

Run: 2026-07-01-weekly-digest-2026-06-24_2026-07-01-frontier-v0

Finding ID: 2026-07-01-pi-coding-agent-v0-80-3-adds-claude-sonnet-5-support-anthropic-compatibl

Accepted signals

Sonnet 5 propagated across harnesses in one week: Claude Code makes it the default (1M context); Pi adds support / 2026-07-01

Source links

Primary links, including exact changelog lines when available.

Pi Coding Agent
github release2026-07-01-pi-coding-agent-v0-80-3-adds-claude-sonnet-5-support-anthropic-compatiblearendil-works/pi / v0.80.3

Versioned source: run artifact