FLUX.1 [dev]
by Black Forest Labs
· FLUX 1 family · released Aug 1, 2024
Open weights
Active
12B open-weight image flagship.
This model has no first-party API. Open-weight release: self-host from published weights.
Specifications
| Model type | Image gen |
|---|---|
| Architecture | Dense |
| Parameters | 12 |
| Context window | Not disclosed tokens |
| Max output | Not disclosed tokens |
| Knowledge cutoff | Not disclosed |
| License | FLUX.1 [dev] Non-Commercial |
| Modalities | Text input Image input Image output |
| Tags | Flagship |
| End of life | Not disclosed |
| Last verified | Aug 20, 2026 |
Benchmarks
| Benchmark | Score | Src |
|---|---|---|
| LMSYS Chatbot Arena Elo | 1,166 | - |