Prompt Enhance

Prompt Enhance

Note

Different model types have different preferences on how to prompt them. For details, see Prompting model specific tips.

SD.Next includes built-in prompt enhancer that uses LLM to enhance your prompts:

• Can be used to manually or automatically enhance prompts
  Automatic enhancement is done during normal generation without user intervention
• Built-in presets for:
  Gemma-3, Qwen-2.5, Phi-4, Llama-3.2, SmolLM2, Dolphin-3
• Support for custom system prompt
• Support for custom models
  • Load any models hosted on huggingface
  • Supports models in huggingface format
  • Supports models in gguf format
• Models are auto-downloaded on first use
• Support quantization and offloading
• Advanced options: max tokens, sampling, temperature, repetition penalty

Warning

If SD.Next detected censored output, it will print warning in the log file and return original prompt

Note

Any model hosted on huggingface in original format should work
as long as it implements standard transformers.AutoModelForCausalLM interface

Note

Not all model architecture are supported for gguf format
Typically gguf support is added slightly later than transformers support

Tip

Debug logging can be enabled using SD_LLM_DEBUG=true env variable

Custom models

Can be used to define any model that is not included in predefined list

Example: standard huggingface model

• Model repo: nidum/Nidum-Gemma-3-4B-it-Uncensored

Example: gguf model hosted on huggingface

• Model repo: meta-llama/Llama-3.2-1B-Instruct
  Link to original model repo on huggingface, required so that SD.Next can download components not present in gguf file such as tokenizer
• Model GGUF: mradermacher/Llama-3.2-1B-Instruct-Uncensored-i1-GGUF
  Link to repo on huggingface that is hosting the gguf file(s)
• Model type: llama
  Model type, required for SD.Next to know how to load the model
• Model name: Llama-3.2-1B-Instruct-Uncensored.i1-Q4_0.gguf
  Name of the gguf file inside gguf repo

Supported GGUF model types: llama, mistral, qwen2, qwen2moe, falcon, tokenizer, phi3, bloom, t5, stablelm, gpt2, starcoder2, mamba, nemotron, gemma2 Supported Transformer model types is a superset of GGUF model types and includes model types such as latest gemma3
In case of unsupported model type, SD.Next will print currently supported model types in the log file