Model family timeline
Last updated Oct 16, 2024
Yi model releases
A source-backed timeline for the Yi model family, collecting release dates, labs, access details, context windows, and major lifecycle changes.
3
Models
1
Labs
2
Open
3
Recent
Most recent in this set
3 models
Yi-Lightning
Available01.AIProprietary
01.AI's MoE API model that reached the global top-10 on Chatbot Arena, strong in Chinese, math, and coding.
Type
MoE
Params
Undisc.
Context
—
Top eval
—
Released
Oct 16, 2024
1.7y ago
MoEUndisc.— ctxOct 16, 2024
Yi-1.5-34B
Available01.AIOpen weights
Yi 1.5 update with stronger instruction following, coding, math, and multilingual performance.
Type
Dense
Params
34B
Context
4K
Top eval
—
Released
May 13, 2024
2.1y ago
Dense34B4K ctxMay 13, 2024
Yi-34B
Available01.AIOpen weights
01.AI's strong bilingual open model, with a 200k-context variant.
Type
Dense
Params
34B
Context
200K
Top eval
—
Released
Nov 6, 2023
2.6y ago
Dense34B200K ctxNov 6, 2023