# API Keys for Experiment Providers # Copy this file to .env and fill in your keys. # OpenAI # OPENAI_API_KEY=sk-... # Google (Gemini) # GOOGLE_API_KEY=... # OpenRouter # OPENROUTER_API_KEY=sk-or-v1-... # Anthropic (required for judging) # ANTHROPIC_API_KEY=sk-ant-... # Groq # GROQ_API_KEY=gsk_...