Yi-Lightning
Fast
01.AI's flagship hosted Yi. Strong bilingual (English/Chinese) chat at competitive pricing, well-regarded on LMArena.
Yi-Lightning is a efficient AI model from 01.AI. It costs $0.140 per million input tokens and $0.140 per million output tokens (blended $0.140/M), with a 16,000-token context window.
INPUT
$0.140/M
per million input tokens
OUTPUT
$0.140/M
per million output tokens
CONTEXT
16,000
tokens
What it is good at
- Bilingual EN/ZH
- Competitive LMArena ranking
- Cheap relative to closed frontier
Typical use cases
- Bilingual production chat
- Cost-sensitive frontier-ish traffic
Benchmarks
vs. best public score
Hand-curated from each provider's published reports and public leaderboards. Methodology varies across sources, treat as directional rather than authoritative.
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in $0.800/Mout $0.800/M
Yi-34B
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in $0.800/Mout $0.800/M
Yi-9B
Compact · 4,000 ctx
in $0.300/Mout $0.300/M
Yi-6B
Nano · 4,000 ctx
in $0.150/Mout $0.150/M
Frequently asked questions
How much does Yi-Lightning cost?
Yi-Lightning costs $0.140 per million input tokens and $0.140 per million output tokens, for a blended reference rate of $0.140 per million tokens.
What is Yi-Lightning's context window?
Yi-Lightning supports up to 16,000 tokens of context in a single request.
What is Yi-Lightning best for?
Yi-Lightning is well suited to Bilingual EN/ZH, Competitive LMArena ranking and Cheap relative to closed frontier.
Who makes Yi-Lightning?
Yi-Lightning is developed and served by 01.AI. It was released in Oct 2024.