Introducing Olmo-core 3: Open, scalable training infrastructure for large MoEs
Olmo-core 3 is designed to scale MoE training into the trillion-parameter range while preserving computational efficiency. It’s one of the core systems behind the next generation of Olmo, and part of our ongoing commitment to open up the tools and training infrastructure behind each new model. Training large AI models takes a lot of compute, driving up costs and energy use and putting advanced model development out of reach for many academic researchers and smaller labs.
- ▪Olmo-core 3 is designed to scale MoE training into the trillion-parameter range while preserving computational efficiency.
- ▪It’s one of the core systems behind the next generation of Olmo, and part of our ongoing commitment to open up the tools and training infrastructure behind each new model.
- ▪Training large AI models takes a lot of compute, driving up costs and energy use and putting advanced model development out of reach for many academic researchers and smaller labs.
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| Original publisher | Hugging Face Blog |
| Canonical URL | https://huggingface.co/blog/allenai/olmocore3 |
| Publication time | Thu, 01 Oct 2026 15:01:43 GMT |
| Retrieval time | 2026-10-01T15:02:31.828Z |
| Last seen | 2026-10-01T15:02:31.828Z |
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| Citation coverage | Summary is a WeSearch-generated derivative; primary citation is the original publisher URL. |
| Cluster | fWqHhplL9BCP · 1 stories |
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| Publisher visit | Yes — open original |
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| AI summary | May WeSearch generate its own short summary of the article? | Limited |
| Retrieval / RAG | May the content be exposed for third-party retrieval-augmented generation? | Not asserted |
| Model training | May the content be used to train AI models? | Not asserted |
| Commercial reuse | May the content be reused commercially? | Not permitted |
Basis: Derived from the published RSS/Atom feed. Contact: [email protected]. Reviewed: 2026-07-24.
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Back to Articles Introducing Olmo-core 3: Open, scalable training infrastructure for large MoEs Enterprise Article Published October 1, 2026 Upvote - Kyle Wiggers Ai2Comms Follow allenai Building a training stack around how MoEs actually work Scaling and optimizing MoE training Scaling into the trillion-parameter range Built for the next generation of Olmo, open for everyone 📄 Tech Report | 💻 Code | 🧩 Interactive demo Today we’re releasing Olmo-core 3, a significant upgrade to our framework for developing large language models featuring a redesigned open mixture-of-experts (MoE) training system. Olmo-core 3 is designed to scale MoE training into the trillion-parameter range while preserving computational efficiency.
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