SAM 3

Training compute

2×10²³ FLOP

Parameters

850M

Published

Nov 20, 2025

SAM 3 is an AI model developed by Meta AI (United States), first published in November 2025. It works in the vision domain, on tasks such as image segmentation.

Training it took an estimated 2×10²³ FLOP of compute. The model has 850,000,000 parameters.

Access: Open weights (restricted use). Its weights are openly available. Epoch AI rates the confidence of this record as likely.

Full record

Organization: Meta AI
Country of organization: United States
Domain: Vision
Task: Image segmentation
Training compute: 2×10²³ FLOP
Parameters: 850,000,000
Model accessibility: Open weights (restricted use)
Open weights: Yes
Epoch confidence: Likely