Project Radar · AI Tools

567-labs/instructor

Production standard for extracting structured JSON from LLMs using Pydantic models with retry validation.

stableAI familiarity: mediumMITFirst seen 2026-09-02Reviewed 2026-09-02
Why it mattersProduction standard for extracting structured JSON from LLMs using Pydantic models with retry validation.
When not to use itWhen your provider already enforces structured outputs natively and you need nothing beyond it.
Risk noteRequires API keys for the target LLM providers; retry loops add latency and token cost.

Evidence

What the review checked

Last release: Active release train; verified against the repository releases page at review time.

Release cadence: Regular releases tracking provider API changes.

Maintenance: Actively maintained with broad provider integration coverage.

License: MIT

Alternatives considered: openai structured outputs, outlines

The AI-era grade

AI familiarity: medium

Known to mainstream models, but frequently generated with outdated APIs. Pin versions and re-run your tests on every agent change.

This grade is the maintainer’s dated judgment about mainstream model training data — not a benchmark result. Re-graded on major releases. The grading rules live in the repository’s curation policy.