OLMoTrace | Connecting a language model’s response back to its training data @allenai
OLMoTrace | Connecting a language model’s response back to its training data @allenai
Uploaded April 2025 | Updated September 2026, 2 days ago
We introduce OLMoTrace, a one-of-a-kind feature in the Ai2 Playground that lets you trace the outputs of language models back to their full, multi-trillion-token training data in real time. OLMoTrace is a manifestation of Ai2’s commitment to an open ecosystem – open models, open data, and beyond. OLMoTrace is available today with our flagship models, including OLMo 2 32B Instruct: playground.allenai.org

Blog post: allenai.org/blog/olmotrace
Training and toolkit code: github.com/allenai/infinigram-api
Questions? Ask on Discord: discord.com/invite/NE5xPufNwu
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OLMoTrace | Connecting a language model’s response back to its training data

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