Live
AI models

ResNeXt-101 (64×4d)

Training compute
1.2×10¹⁹ FLOP
Parameters
83M
Published
Nov 16, 2016

ResNeXt-101 (64×4d) is an AI model developed by University of California San Diego and Facebook (United States), first published in November 2016. It works in the vision domain, on tasks such as image classification.

Training it took an estimated 1.2×10¹⁹ FLOP of compute (estimation method: third-party estimation). The model has 83,000,000 parameters. It was trained on roughly 1.3M datapoints.

Access: Open weights (unrestricted). Its weights are openly available. The reference paper has 11,620 citations. Epoch AI rates the confidence of this record as confident.

Full record
Organization
University of California San Diego, Facebook
Country of organization
United States
Domain
Vision
Task
Image classification
Training compute
1.2×10¹⁹ FLOP
Compute estimation method
Third-party estimation
Parameters
83,000,000
Dataset size
1.3M
Numerical format
FP32
Model accessibility
Open weights (unrestricted)
Open weights
Yes
Citations
11,620
Epoch confidence
Confident
More from University of California San Diego,Facebook
SourceEpoch AI, 'AI Models'. Published online at epoch.ai. Retrieved 2026-07-29 from https://epoch.ai/data/ai-models. Licensed under CC BY 4.0.
← All ai models