Model Overview
01.AI · Active Model
- Long-Context
- API Available
- Production Ready
- Price History Tracked
Yi-Lightning is 01.AI's (零一万物) fastest and most cost-efficient model, purpose-built for high-throughput production workloads. It delivers competitive performance against GPT-4o-mini and Claude Haiku at a fraction of the cost, with exceptional bilingual Chinese-English capabilities. Yi-Lightning excels at classification, entity extraction, summarization, and high-frequency API tasks where latency and cost-per-call are critical constraints.
- Developer
- 01.AI
- Release Date
- October 1, 2025
- Context Window
- 131,072 tokens≈ 175 words
- API Access
- Publicly AvailableIntegrate via official API
- Input Cost
- $0.15per million tokens
- Output Cost
- $0.30per million tokens