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API

API backend configuration for Qwen3-VL layout detection.

Uses litellm for provider-agnostic inference (OpenRouter, Gemini, Azure, etc.).

QwenLayoutAPIConfig

Bases: BaseModel

API backend configuration for Qwen layout detection.

Uses litellm for provider-agnostic API access. Supports OpenRouter, Gemini, Azure, OpenAI, and any other litellm-compatible provider.

API keys can be passed directly or read from environment variables.

Example 
# OpenRouter (reads OPENROUTER_API_KEY from env)
config = QwenLayoutAPIConfig(
    model="openrouter/qwen/qwen3-vl-8b-instruct",
)

# With explicit key
config = QwenLayoutAPIConfig(
    model="openrouter/qwen/qwen3-vl-8b-instruct",
    api_key=os.environ["OPENROUTER_API_KEY"],
    api_base="https://openrouter.ai/api/v1",
)