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Open weightsBlack Forest Labs/10 trustVerified
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FLUX.1 schnell

Blazing-fast open-weights image model — Apache-2.0, 1-4 steps.

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About

FLUX.1 schnell is Black Forest Labs' distilled, speed-optimized image model: where FLUX.1-dev needs dozens of diffusion steps, schnell produces quality images in 1-4 steps — fast enough for near-real-time generation on good GPUs. 12B parameters, and unusually for its quality tier, Apache-2.0 licensed (the real OSI deal — commercial use, modification, and redistribution allowed). 595k Hugging Face downloads. It trades a little prompt adherence and polish for speed versus FLUX.1-dev; FLUX.2 now leads the family, but schnell remains the fastest open-weights option per step.

Specs

Context window

N/A (image model)

Pricing

Self-host: free (Apache-2.0). Hosted inference via fal.ai/Replicate and others — per-image pricing varies; check live provider pages.

Free quota

No official API; self-hosting on your own GPU is free.

API access

Self-host (Diffusers, ComfyUI) or hosted inference APIs.

Weights

Open weights

Released

July 31, 2024

Benchmarks

No standard benchmarks; evaluated on quality/speed tradeoffs vs FLUX.1-dev and SDXL Turbo-class models (2024): schnell wins on speed, dev wins on fidelity — qualitative, test your own prompts.

Provider-reported unless a source says otherwise. Benchmarks are marketing-adjacent by nature — treat them as directional.

Use cases

image generationreal-timeprototypingfine-tuning

Trust score — 8/10

/10 trustVerified

Scored 8/10 (verified tier, metrics-v1). Evidence: HF: black-forest-labs/FLUX.1-schnell; HF downloads 595,138 (peer-normalized); released 804 days ago. Manual review: BFL's fast distilled FLUX (1-4 steps); Apache-2.0 is the real deal; trades fidelity for speed vs dev; FLUX.2 supersedes the 1.x line. License: Apache-2.0.

How the trust score is built

Full methodology →
Adoption · stars/downloads, log-scaled vs peers
8.5/10
Maintenance · recency, releases, issue load
4.0/10
Openness · license + docs
10.0/10
Manual review · sanity read + red-flag check
8.0/10
  • · HF: black-forest-labs/FLUX.1-schnell
  • · HF downloads 595,138 (peer-normalized)
  • · released 804 days ago
  • · manual review: BFL's fast distilled FLUX (1-4 steps); Apache-2.0 is the real deal; trades fidelity for speed vs dev; FLUX.2 supersedes the 1.x line

Sources