OLMo 3

weights

open(Apache-2.0)

data

open(Dolma 3, 9.3T tokens, all stages)

code

open(training code+recipes+logs)

checkpoints

open(intermediate)

license

Apache-2.0(OSI)

Fully open: Apache-2.0 weights + the complete Dolma 3 corpus + training code + intermediate checkpoints. The reference fully-open model line. Dolma is ungated and `odc-by`, and the 7B card reads apache-2.0 with safetensors and `isGated: false`.

• https://huggingface.co/api/datasets/allenai/dolma recorded 2026-08-13

  `gated: false`, `private: false`, 2,724 downloads, 1,070 likes, card license `odc-by`. The Dolma corpus is published and ungated.

• https://allenai.org/blog/olmo3 recorded 2026-08-13

  "Olmo 3 is pretrained on Dolma 3, a new ~9.3-trillion-token corpus"; "Because the Olmo 3 data recipes, training pipeline, and checkpoints are open, independent teams can connect model behavior back to measurable" training decisions; "Olmo 3-Base delivers the strongest performance among fully open base models - where training data, code, and weights are all publicly available".

• https://huggingface.co/allenai/Olmo-3-1025-7B recorded 2026-08-13

  OLMo 3 7B base model card: License apache-2.0, safetensors weight files, `isGated: false`.

• https://api.github.com/repos/allenai/OLMo recorded 2026-08-13

  `private: false`, `archived: false`, license `Apache-2.0`, 6,625 stars, description "Modeling, training, eval, and inference code for OLMo" - the training pipeline itself, not an inference wrapper.

146,145 downloads in the trailing 30 days across the two declared artifacts (allenai/Olmo-3-1125-32B 43,671; allenai/Olmo-3-1025-7B 102,474), which bands at level 3 (100K-1M) on the model adoption scale.

• https://huggingface.co/api/models/allenai/Olmo-3-1125-32B recorded 2026-08-13

  43,671 downloads in the trailing 30 days for allenai/Olmo-3-1125-32B

• https://huggingface.co/api/models/allenai/Olmo-3-1025-7B recorded 2026-08-13

  102,474 downloads in the trailing 30 days for allenai/Olmo-3-1025-7B

The strongest fully-open base and reasoning model released so far: competitive with Qwen2.5 and Gemma 3 and approaching Qwen3-32B, but still a step below the trillion-parameter open-weight frontier that a 5 would require.

• https://allenai.org/blog/olmo3 recorded 2026-08-13

  "the strongest fully open thinking model we're aware of, narrowing the gap to the best open-weight models of similar scale - such as Qwen 3 32B - while training on roughly 6x fewer tokens"; and "Olmo 3-Base delivers the strongest performance among fully open base models".