Model · Language model
Olmo 3.1 32B Think
Ai2's December 2025 Olmo 3.1 reasoning flagship at 32B parameters with explicit reasoning chains, published fully open under Apache 2.0 with weights, training data, code, and intermediate checkpoints on Ai2's Hugging Face organization alongside a technical report. No developer API serves this checkpoint; the playground is a demo. Reviewed by automation under ADR 055 with human spot-checks; verify against the cited evidence.
- Developer
- Ai2
- Distribution
- Downloadable weights
- Artifact licensing
- Open-licensed artifacts
- License scope
- Reviewed release artifacts and mandatory terms; not an assessment of training code or training data openness.
- Licenses
- Apache License 2.0
- Boundary
- This record represents the Olmo 3 line's 32B reasoning identity at its current Olmo 3.1 Think checkpoint. The Olmo 3.0 Think and Base checkpoints, the 7B variants, Olmo 3.1 Instruct 32B, the Tulu and Molmo lines, and the Ai2 playground demo are separate boundaries.
Risk statements
The developer publishes no risk-threshold statement for this release. Absence is not evidence of safety.
Page the reviewer checked ↗ · 2026-10-13 · Research confidence: High
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