Promptfoo 0.123.0
Promptfoo releases published Promptfoo 0.123.0. 0.123.0 (2026-09-10) ⚠ BREAKING CHANGES providers: default GPT-5.6+ to Responses ( 10803 ) Features assertions: grade native audio with llm-rubric ( 10814 ) ( 39c4fb5 ) providers: add Claude Fable and Mythos 5.1 ( 10601 ) ( ac6ba5b ) providers: add GPT-6 Astra support ( 10625 ) ( cd4c68b ) providers: add…
Why this signal matters
Promptfoo releases published Promptfoo 0.123.0. This release-watch entry was generated from the project's official GitHub release feed and is kept separate from human-reviewed editorial analysis. Release notes: 0.123.0 (2026-09-10) ⚠ BREAKING CHANGES providers: default GPT-5.6+ to Responses ( 10803 ) Features assertions: grade native audio with llm-rubric ( 10814 ) ( 39c4fb5 ) providers: add Claude Fable and Mythos 5.1 ( 10601 ) ( ac6ba5b ) providers: add GPT-6 Astra support ( 10625 ) ( cd4c68b ) providers: add grok-4.6, grok-imagine-image-2.0, and grok-imagine-video-1.5 ( 10587 ) ( 48a71cd ) providers: default GPT-5.6+ to Responses ( 10803 ) ( b051efd ) providers: expose MCP tool calls in response metadata ( 10516 ) ( 891d870 ) providers: support Gemini 3.8 Flash ( 10616 ) ( b89a25d ) providers: support GPT Image 2.5 generation ( 10812 ) ( 71346b0 ) providers: support GPT Transcribe file uploads ( 10813 ) ( c85b395 ) providers: support Muse Spark 1.3 ( 10617 ) ( 8e0de03 ) Bug Fixes assertions: parse multiline tool calls and clarify guides ( 10789 ) ( 5f0324f ) assertions: recognize OpenAI…
Actionable summary
Treat Promptfoo 0.123.0 as an official release signal. Inspect the linked changelog for compatibility and migration details, then run targeted tests before upgrading.
- Agent usefulness
- 82/100
- Confidence
- 96%
- Canonical data
- JSON + Markdown
What builders should check
- Review the official Promptfoo releases release notes before upgrading.
- Check compatibility, migration, and security notes against your current agent stack.
- Run focused regression tests before production rollout.