AI Research Atlas

Yi-Lightning

01.AI · 2024-10

Closed MoE model that tied for third among companies on LMSYS Chatbot Arena in October 2024, priced near $0.14 per million tokens.

01.AI's last frontier-class run before it stopped pretraining in March 2025 to sell customized solutions built on DeepSeek models (per Wikipedia). Wikipedia also cites reports of about $3M and 2,000 GPUs for training its models.

Date
2024-10
Lab
01.AI
Kind
model
Access
closed API

Figures

MeasureValueMeasured by
Inference price$0.14 per M tokens
vs GPT o1-mini $0.26 per Wikipedia
company

Single secondary source (Wikipedia); I could not open the original Yi-Lightning announcement, the LMSYS ranking or the cited cost reports.

Sources

  1. en.wikipedia.org/wiki/01.AI

This record was partly confirmed: some claims could not be checked on 6 October 2026. How we check