# Multimodal Agent Configuration
# Copy this file to .env and fill in your API keys

# Google Gemini API (GEMINI_API_KEY 亦可，两者都会被读取)
GOOGLE_API_KEY=your_gemini_api_key_here

# OpenAI API (for GPT-4o / GPT-5 vision and Whisper)
OPENAI_API_KEY=your_openai_api_key_here

# Doubao API (ByteDance/Volcano Engine; ARK_API_KEY 亦可)
DOUBAO_API_KEY=your_doubao_api_key_here

# Optional: Mistral API for OCR
MISTRAL_API_KEY=your_mistral_api_key_here

# OpenRouter universal fallback (optional): if the selected model's own
# provider key (Gemini/OpenAI/Doubao) is missing but OPENROUTER_API_KEY is set,
# that model is routed through OpenRouter's OpenAI-compatible endpoint.
# Model names are mapped automatically (gemini-3.5-flash -> google/gemini-3.5-flash,
# gpt-5.6-luna -> openai/gpt-5.6-luna; vision-capable default openai/gpt-5.6-luna).
# Note: audio transcription (Whisper) and native-PDF extraction still need a
# direct OpenAI/Gemini key. Set OPENROUTER_MODEL to force a specific model id.
OPENROUTER_API_KEY=your_openrouter_api_key_here
# OPENROUTER_MODEL=openai/gpt-5.6-luna