Stax by Google is a fast, flexible, and robust AI evaluation toolkit designed to replace vague "vibe testing" with rigorous, repeatable assessments tailored to your unique usage. Whether you're experimenting with models, tuning prompts, or comparing AI orchestrations, Stax allows you to measure what truly matters—quality, latency, and token efficiency—delivering clear, data-driven insights to help you ship with greater speed and confidence.
Features:
- Fast, Repeatable Evaluations: Instead of manual, one-off tests, Stax enables powerful, repeatable workflows that help teams iterate rapidly and deploy AI improvements with confidence.
- Customizable Metrics & Evaluators: Stax lets you customize metrics and evaluators to your own product goals and user needs. Choose from pre-built options or design custom evaluators for everything from brand voice to compliance.
- Built-in Autoraters (AI-as-Judge): Use out-of-the-box autoraters—powered by advanced LLMs like Gemini—to automatically assess outputs for coherence, factuality, and more, at scale.
- End-to-End Evaluation Flow: Stax supports the full evaluation lifecycle: from experimentation and dataset management to evaluation and visual performance analysis, enabling continuous and holistic AI testing.
- Data-Driven Decision Making: Gain actionable insights across quality, latency, and token usage—helping you choose the best model or prompt iteration based on hard data rather than intuition.
💡 This AI tool has not been verified by our editorial team. If you are the owner or team member of this AI product, please check out our partnership page.
