UltraChat
Fresh
Tsinghua / OpenBMB's large-scale multi-turn dialog dataset generated by two LLMs talking to each other across structured topic taxonomies.
- Type
- SFT Dataset
- Publisher
- OpenBMB
- Capabilities
- Instruction FollowingMulti Turn Dialog
- Runtime
hf_parquet- License
- MIT
- Size
- 1.5M dialogs (~200k in the popular "200k" filter)
- Published
- May 2026
Cite
Notes
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Lift evidence
2| Eval | Tools known to lift | Source paper |
|---|---|---|
| MT-Bench | UltraChat | - |
| AlpacaEval | UltraChat | - |
Models
Notable models trained on it
UltraLM-13BZephyr-7B (SFT phase)many Hugging Face H4 derivative models