OpenAssistant Conversations (OASST1)
OpenAssistantOpenAssistant Conversations (OASST1) is the LAION-community crowdsourced human dialogue corpus (161k messages in 35 languages, Apache-2.0) from the 2023 OpenAssistant project. It remains a staple human-data ingredient in open post-training mixes, from Guanaco to Tulu 3 and OLMo 3's Dolci.
Openness
5 high confidence- license
- Apache-2.0
- gated
- false
- dataset_card
- present
Apache-2.0, ungated, full dataset card.
- https://huggingface.co/datasets/OpenAssistant/oasst1 recorded 2026-07-04
Apache-2.0 license, ungated, dataset card
Adoption
3 high confidence15,736 monthly downloads on Hugging Face, graded on the training-corpus bands.
- https://huggingface.co/api/datasets/OpenAssistant/oasst1 recorded 2026-07-04
downloads field = 15,736 (30-day)
Capability
3 high confidenceProven with ongoing downstream use (Guanaco, Tulu 3, OLMo 3 Dolci) but dated, reduced to a fractional ingredient, with no comparative results isolating its value.
- https://arxiv.org/abs/2305.14314 recorded 2026-07-04
Guanaco/QLoRA fine-tuned on OASST1
- https://huggingface.co/datasets/allenai/Dolci-Instruct-SFT recorded 2026-07-04
OpenAssistant Guanaco appears as a small fraction of OLMo 3 Dolci SFT
Unchanged since 2026-07-04 (last edited, not re-checked)