Claude Fable 5.1 & GPT-6 Astra packages are live— install now and get the most powerful standards for your agent

e2e

Testing

End-to-end tests that are worth their cost — user-visible selectors, deterministic waiting, and keeping the suite small enough to trust.

Pick the model family

Available for 11 model families. Same engineering substance in each; the structure and the injected defenses are tuned per family.

Claude

Deepseek

Gemini

Glm

Grok

Kimi

Minimax

Mistral

Open Ai

Qwen

Sarvam Ai