wan2-2-fp8da-aoti-faster

Executes WAN 2.2 model inference using 8-bit floating-point quantization combined with AOT (Ahead-of-Time) compilation via PyTorch's torch.compile, reducing memory footprint and latency by fusing operations at graph compilation time. The AOTI backend generates optimized machine code for the target hardware (CPU/GPU) before runtime, eliminating interpretation overhead and enabling aggressive kernel fusion across quantized operations.

Exposes the quantized model through a Gradio web interface deployed on HuggingFace Spaces, handling HTTP request routing, session management, and real-time token streaming via Server-Sent Events (SSE). Gradio's component system automatically generates form inputs and output displays, while the backend maintains stateful inference sessions to support multi-turn interactions without reloading the model.

Implements a Model Context Protocol (MCP) server that exposes the quantized model as a callable tool within larger AI agent workflows, allowing external LLMs (Claude, GPT-4) to invoke the model as a function with schema-based argument validation. The MCP server handles request serialization, timeout management, and error propagation back to the calling agent, enabling composition of this model with other tools in a unified agent loop.

Deploys the model on HuggingFace's ZeroGPU infrastructure, which allocates GPU resources on-demand from a shared pool and automatically scales based on concurrent user load. The runtime environment handles GPU lifecycle management, CUDA initialization, and model loading, with billing tied to actual GPU compute time rather than reserved capacity, enabling cost-efficient serving of bursty inference workloads.

Processes multiple inference requests concurrently by batching them at the model level, with automatic padding to the longest sequence in the batch and dynamic batch size adjustment based on available GPU memory. The implementation uses torch.nn.utils.rnn.pad_sequence or similar to align variable-length inputs, then executes a single forward pass across the batch, amortizing model loading and kernel launch overhead across multiple requests.

Generates and streams output tokens one at a time (or in small chunks) via Server-Sent Events, buffering partial tokens to avoid sending incomplete UTF-8 sequences or mid-word tokens to the client. The implementation uses a token buffer that accumulates tokens until a complete word or punctuation boundary is detected, then flushes to the client, balancing responsiveness with output coherence.