OpenChat 3.5

Community · 2023 · LLM · Open-source/community

A to Z

A · App: No
B · Built By: Community
C · CEO & Politics: N/A (academic research) — No public partisan activity documented
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: Open-source/community
K · Key Staffers: Guan Wang (Project lead and lead author), Alpay Ariyak (Project lead), Yang Liu (Senior author)
L · Languages: English-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: OpenChat 3.5, a 7B open chat model with an 8,192-token context, fine-tuned with C-RLFT, a method inspired by offline reinforcement learning that learns from mixed-quality data without preference labels, on public instruction datasets such as ShareGPT, OpenOrca and MetaMathQA; its developers reported a 7.81 MT-Bench score, which they called the best among open-source models at release, ahead of 70B models.
S · Stock / Status: N/A (open-source project)
T · Training Cutoff: [UNKNOWN]
U · Users: [UNKNOWN]
V · Voice Chat: No
W · Weights: Downloadable
X · X Handle: [UNKNOWN]
Y · Year Founded: [UNKNOWN]
Z · Bottom Line: Open-weights LLM from Community, released 2023.

Data completeness 81% · Last verified 2026-06-11 · Primary source ↗

“OpenChat 3.5.” AIDb — The AI Database. Verified 2026-06-11. https://theaidatabase.com/m/openchat-35.html