AI ranking change · 2026-07-12
Inspect AI overtakes Promptfoo as ChatGPT's #1 pick
for open-source llm eval framework
Promptfoo→Inspect AI
On 2026-07-12, ChatGPT changed its #1 recommendation for best open-source llm eval framework — dropping Promptfoo from the top spot in favor of Inspect AI. The previous #1 had held since 2026-07-12.
“Best overall architecture for modern evals: composable tasks, agents, tools, sandboxes, scorers, 200-plus reusable evaluations, strong model-provider support, and excellent logs, web visualization, and VS Code tooling”— ChatGPT
Is your product in this race?
open-source LLM eval framework rankings re-poll every week. Check where the AI models place your product — and get an email the moment it moves.
Get your AI Visibility Grade →Source: modelsagree.com · CC BY 4.0 · Every poll is public and re-checked continuously.