When deploying diffusion models in design tools, image editors, and visual production workflows, developers must account for inference latency. Generating an image requires multiple sequential passes through a model with billions of parameters, and higher resolutions increase attention costs.

FLUX 3 Image Klein is an image editing and generation model from Black Forest Labs (BFL) trained on NVIDIA GB200 NVL72 and optimized for NVIDIA GPUs. It offers Base and distilled checkpoints for different latency and fidelity requirements.

This tutorial shows how to configure FLUX 3 Image Klein in NVIDIA TensorRT LLM VisualGen to take advantage of fused kernels, multi-GPU parallelism, FP8/NVFP4 support, caching, and attention optimizations. It compares latency and changes in generated outputs across optimizations.…