Yi-6B

01.AI · 2023 · LLM · China

A to Z

A · App: No
B · Built By: 01.AI
C · CEO & Politics: Kai-Fu Lee — Centrist / bridges US-China tech
D · Date: 2023
E · Expertise: Intermediate+
F · Free Tier: Yes
G · Generates: Text only
H · Deployment: Cloud + Local (open weights)
I · Inputs: Text
J · Jurisdiction: China
K · Key Staffers: Kai-Fu Lee (CEO/Founder)
L · Languages: Chinese-primary
M · Model Type: LLM
N · Safety Issues: None reported
O · Open Source: Yes — open weights
P · Pricing: Free (open weights, Apache 2.0)
Q · AIDb Rating: [UNKNOWN]
R · What Makes It Special: 01.AI's Yi-6B, the smaller of two bilingual (English and Chinese) base models in Yi's first open release on November 2, 2023, trained from scratch on 3T tokens using the Llama architecture but not Llama's weights, with a 4K sequence length extendable to 32K at inference; 01.AI suggests the 6B models for personal and academic use, and a 200K-context Yi-6B-200K and Yi-9B, trained further from Yi-6B on 0.8T tokens, followed.
S · Stock / Status: Private ($1B+ valuation, Nov 2023; Hong Kong IPO planned for 2027)
T · Training Cutoff: [UNKNOWN]
U · Users: [UNKNOWN]
V · Voice Chat: No
W · Weights: Downloadable
X · X Handle: @01ai_yi
Y · Year Founded: [UNKNOWN]
Z · Bottom Line: Open-weights LLM from 01.AI, released 2023.

Data completeness 85% · Last verified 2026-05-12 · Primary source ↗

“Yi-6B.” AIDb — The AI Database. Verified 2026-05-12. https://theaidatabase.com/m/yi-6b.html