Zephyr 7B

Hugging Face · 2023 · LLM · France

A to Z

A · App: No
B · Built By: Hugging Face
C · CEO & Politics: Clément Delangue — European progressive / open-source advocate
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: France
K · Key Staffers: Thomas Wolf (CSO & Co-Founder), Julien Chaumond (CTO & Co-Founder)
L · Languages: English-primary
M · Model Type: LLM
N · Safety Issues: None reported
O · Open Source: Yes — open weights
P · Pricing: Free (open weights, MIT)
Q · AIDb Rating: [UNKNOWN]
R · What Makes It Special: Hugging Face's Zephyr-7B-β chat model: Mistral-7B-v0.1 fine-tuned with Direct Preference Optimization on public synthetic datasets; at release it was the highest-ranked 7B chat model on MT-Bench (7.34) and AlpacaEval (90.60% win rate). Removing the datasets' built-in alignment raised its scores but makes problematic output more likely.
S · Stock / Status: Private ($4.5B valuation, Aug 2023; exploring a sale at $13B+ as of Aug 2026)
T · Training Cutoff: [UNKNOWN]
U · Users: [UNKNOWN]
V · Voice Chat: No
W · Weights: Downloadable
X · X Handle: @huggingface
Y · Year Founded: [UNKNOWN]
Z · Bottom Line: Open-weights LLM from Hugging Face, released 2023.

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

“Zephyr 7B.” AIDb — The AI Database. Verified 2026-05-12. https://theaidatabase.com/m/zephyr-7b.html