开源国产8B模型，比肩闭源Image 2了！

TL;DR - SenseTime has released the open-source SenseNova U1.5 Lite, an 8B unified model for image generation and editing with native 4K output. The release targets production-ready visual workflows through stronger instruction following, layout and text rendering, precise editing, and preservation of unmodified content.

• The model supports 3,000–4,000-character prompts, multiple image references, region annotations, complex layouts, and Chinese and English text.
• Its NEO-unify architecture combines visual understanding, image generation, and editing in one model without an external expert router.
• Specialized experts for text rendering, aesthetics, and editing are consolidated into the 8B model through multi-teacher online policy distillation (MOPD).
• Post-training emphasizes instruction adherence, visual quality, and edit preservation; the article claims performance comparable to closed-source GPT-Image-2 in selected layout and editing tasks.