Frontier Flux Original
Black Forest Labs posts FLUX 3 Action, a 7B open-weight world action model
On 23 September 2026 Black Forest Labs posted FLUX 3 Action, a 7B open-weight world action model with DROID and SO-101 checkpoints on Hugging Face. NVIDIA's RoboLab-120 board lists it at rank 1 with 42.9% success. Weights use the FLUX Kommunity License v1.0.
Abstract concept art for a world action model that pairs cameras with the next motion. AI-generated.
Frontier Flux / AI-generated
Black Forest Labs on 23 September 2026 posted FLUX 3 Action, a 7B open-weight world action model that jointly predicts future video frames and robot actions.
From the 23 September 2026 @bfl_ai post:
"Introducing FLUX 3 Action. An open weights 7B World Action Model that achieves first place on the RoboLab benchmark. It outperforms the previous best open model by 6.1 percentage points while using 56% fewer parameters and running up to 3.95x faster."
The FLUX 3 Action page reports a DROID-tuned table entry of 42.92% on RoboLab-120. NVIDIA's RoboLab-120 leaderboard now lists FLUX 3 Action at rank 1 with 42.9% success (515 of 1,200 trials) at 7B. The same BFL report splits other DROID recipes: a single-step 7B checkpoint at 38.3% plus or minus 0.38, and a guidance-distilled checkpoint at 42.2% plus or minus 0.36. The X post's open-model comparison is Cosmos 3 Nano at 36.8% and 16B, which the NVIDIA board still lists at 36.8%.
The Hugging Face DROID card names a 7B LeRobot policy with FP8 and guidance-distilled variants in the same repo. The FLUX 3 Action collection also holds a base checkpoint and an SO-101 policy. Code is at github.com/black-forest-labs/flux-action. A 23 September Hugging Face writeup says a frozen Qwen3-VL-4B encodes the instruction and a frozen video VAE encodes frames; DROID and SO-101 checkpoints are wired into LeRobot. BFL measures speedups of 1.52x through 3.95x versus Cosmos 3 Nano in FP8, depending on checkpoint and GPU class.
The Hub card names the FLUX Kommunity License v1.0. Non-commercial use, including non-commercial robotics, is allowed. Commercial output use is limited to Qualifying Users under US$5 million annualized revenue with affiliates; production robotics needs a separate BFL license.
Key facts
- Social alert: @bfl_ai on X, 23 September 2026
- Official primary: FLUX 3 Action
- Live board: RoboLab-120, rank 1 at 42.9% (515 of 1,200)
- Weights: flux-3-action-droid and the FLUX 3 Action collection
- Code: black-forest-labs/flux-action
- License: FLUX Kommunity License v1.0; Qualifying User threshold US$5 million
How to read
The X post is the alert. Speedups and the 38.3 / 42.2 / 42.92 figures are BFL-reported. The 42.9% rank-1 line is from NVIDIA's board on 25 September 2026. OASIS WAM sits at 39.0% on that board and is closed; the 6.1 point gap is versus Cosmos 3 Nano, the prior best open WAM in BFL's comparison.
Independence
Frontier Flux is not affiliated with Black Forest Labs or NVIDIA. The X post is the alert. RoboLab scores here are BFL-reported or copied from NVIDIA's public board, not our ranking.