01.AI is the Beijing lab founded by Kai-Fu Lee, behind the Yi family of bilingual open-weight language models. Yi releases compete at the open frontier on Chinese and English benchmarks.
Visit 01.AIModels tracked
1
Open weight
0
API only
1
Avg score
63.8
Top benchmark
70.2
Arena Score
Total HF downloads
—
Context window
16K
First release
Sep 2024
Latest release
Sep 2024
Ranked by composite score across benchmarks, popularity, efficiency, and versatility.
| # | Model | Modality | Score | Params | Released |
|---|---|---|---|---|---|
| 1 | Yi LightningAPI | text | BB63.8 | — | Sep 2024 |
The strongest model from this provider in each modality. Click a card to open the model page.
How this provider’s catalog splits across text, image, video, audio, and embedding.
Composite grades across this provider’s catalog. Higher is better, blending benchmarks, popularity, and efficiency.
Closed-source models accessed through 01.AI’s API.
API pricing is per million tokens unless noted otherwise.
| # | Model | Modality | Score | Params | Released |
|---|---|---|---|---|---|
| 1 | Yi LightningAPI | text | BB63.8 | — | Sep 2024 |
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