UPDATE V1.2: Better backgrounds, less grain/artifacts, more natural/candid poses, better landscapes, etc. Both base (bf16) and fp8 have been uploaded (files on the right for v1.2 fp8 ----->). Note: Some people are reporting issues with v1.2. Personally, I'm getting better results, so I am leaving it up for now, but it sounds like I've got more testing/training to do.

Chroma is a fantastic and highly versatile model capable of producing photo-like results, but it requires careful prompting. This finetune aims to improve reliability in realistic/photo-based styles while preserving Chroma’s broad concept knowledge. The flash version has the rank-128 lora (from here) baked in. v1.2 GGUFs now on HuggingFace.

(v1.2) Prompting: Chroma prompts work well. Describing what you want to see in natural sentences works well. In v1.2, photography terms influence style strongly. This includes: candid, staged, amateur, professional, documentary/cinematic/landscape/wildlife photography, etc. Technical terms (lens, shutter speed, etc.) can enhance results but are not necessary. Some example images show the captioning style used in training (amateur-guitar, night-sky, close-up face, tiger). Negative prompts do not work with CFG set to one. With CFG above one, negative prompts work and can be very important (for good or bad).

v1.2 might be slightly less forgiving when making anthropomorphic characters, you may need to adjust your prompts. I have ideas for improvements in future versions, but testing and fine-tuning is slow, so it may take a while.