OLMo 3
by Allen Institute for AI
· OLMO family · released Nov 20, 2025
Open weights
Active
AI2's fully open flagship (up to 32B) released November 2025 with open data, code, and checkpoints for the full training pipeline, including RLVR stages. Matches Qwen3-32B-class reasoning performance while publishing everything.
This model has no first-party API. Open-weight release: self-host from the published weights.
Specifications
| Model type | Text LLM |
|---|---|
| Architecture | Dense |
| Parameters | 32 |
| Context window | Not disclosed tokens |
| Max output | Not disclosed tokens |
| Knowledge cutoff | Not disclosed |
| License | Apache License 2.0 |
| Modalities | Text input Text output |
| Tags | Reasoning Small LM |
| End of life | Not disclosed |
| Weights | Download |
| Official page | Link |
| Last verified | Not disclosed |