Bria AI · Fast Text-to-Image

Fibo-1.5

An 8B-parameter DiT flow-matching text-to-image model, distilled from Bria's FIBO and keeping its structured-JSON caption training and control features. Inference falls from FIBO 1.0's 50 steps at guidance scale 5 to 4-6 steps at guidance scale 1 with no classifier-free guidance, via Distribution Matching Distillation plus a DMD-R refinement stage. It uses SmolLM3-3B as the text encoder and the Wan 2.2 VAE, ships in BF16, and wins a blind pairwise human evaluation over FIBO 1.0 across 247 comparisons. The real differentiator is provenance: trained only on licensed images curated from roughly 1B, with stated GDPR and EU AI Act compliance — though weights are gated under CC BY-NC 4.0 and commercial use needs a separate licence from Bria.