StepFun

Tracked models

9

Largest training run

4.1 x 10^24 FLOP

9 tracked AI models list StepFun as a developer. The largest is Step-Video-T2V, at 4.1 x 10^24 FLOP (February 2025). The most recent tracked release is from February 2026.

Models (9)

Step-Video-T2V4.1 x 10^24 FLOP Step-Omni2.5 x 10^24 FLOP Step-Audio-Chat 130B1.9 x 10^24 FLOP Step-16.2 x 10^23 FLOP Step 3.5 FlashFebruary 2026 Step-Audio-TTS-3BFebruary 2025 Step-1XMarch 2024 Step-1.5VMarch 2024 Step-2March 2024

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.