LLMOpen weights
OLMo 3
Allen Institute for AI
Updated May 21, 2026 · Benchmarks via Artificial Analysis, specs & pricing via OpenRouter · Methodology · Report an error
Specifications
- Type
- LLM
- Access
- Open weights
- Released
- November 20, 2025
- License
- Apache 2.0
- Parameters
- 32B
- Context window
- 65,536 tokens
- Input
- Text
- Output
- Text
Our take
The strongest fully-open (data, code, weights) model family of 2025, including the first fully open 32B “thinking” reasoning model.