Allen AI FlexOlmo

Allen AI · 2025 · LLM · USA

A to Z

A · App: No
B · Built By: Allen AI
C · CEO & Politics: Ali Farhadi — Centrist / academic
D · Date: 2025
E · Expertise: Intermediate+
F · Free Tier: Yes
G · Generates: Text only
H · Deployment: Cloud + Local (open weights)
I · Inputs: Text
J · Jurisdiction: USA
K · Key Staffers: Weijia Shi (Lead author), Sewon Min (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: 5/10 · AIDb v2.0 (rule-based): Capability 4/10 · Currency 4/10 · Access 8/10 · Significance 4/10 → 4.60
R · What Makes It Special: Mixture-of-experts model (33B total parameters) built so data owners can contribute expert modules trained on their own data without sharing it, and switch that data's contribution on or off at inference. Apache 2.0.
S · Stock / Status: Non-profit
T · Training Cutoff: [UNKNOWN]
U · Users: [UNKNOWN]
V · Voice Chat: No
W · Weights: Downloadable
X · X Handle: @allen_ai
Y · Year Founded: [UNKNOWN]
Z · Bottom Line: Open-weights LLM from Allen AI, released 2025.

Data completeness 88% · Last verified 2026-06-11 · Primary source ↗

“Allen AI FlexOlmo.” AIDb — The AI Database. Verified 2026-06-11. https://theaidatabase.com/m/allen-ai-flexolmo.html