🧬 OpenEvolve Prompt Optimizer

Automatically optimize prompts using evolutionary algorithms. Evolves better prompts by testing on real datasets.

Setup: Duplicate this space, add your OpenRouter API key (OPENAI_API_KEY) in Settings → Secrets. Get free key at openrouter.ai

Usage: Enter initial prompt with {input} placeholder → Click optimize → Compare results

Model: meta-llama/llama-3.2-3b-instruct (~$0.04 per 1M tokens)

HuggingFace Dataset (Full Name)

Dataset name from HuggingFace Hub. Default: IMDB (sentiment classification)

Dataset Split

Input Field Name

The field containing inputs to process

Target Field Name

The field containing expected outputs

Initial Prompt

Use {input} as placeholder. This baseline scores ~60% - evolution will improve it!

📊 Results

Click 'Validate & Optimize Prompt' to start optimization...

Will appear here after validation...

Will appear here after optimization...