Side-by-side comparison · open source
Guidance vs Instructor
What we have checked about each, line by line. Every value shows where it came from and when we last confirmed it.
Open Source
Guidance
A guidance language for controlling large language models.
Open Source
Instructor
Structured output for LLMs via Pydantic. The cleanest answer to 'just give me a typed object back'.
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Line by line
| Measure | Guidance | Instructor |
|---|---|---|
| Latest version | 0.3.2 (for 18 Mar 2026) | 1.17.0 (for 9 Sept 2026) |
| GitHub stars | 21,779 | 13,943 |
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