TensorSharp, a C# inference engine, now lets developers run large language models locally on consumer hardware without cloud dependencies.

What happened

TensorSharp is an open-source application that runs GGUF language models locally via a command-line interface, interactive chat, web browser UI, or API endpoints compatible with Ollama and OpenAI. It supports multiple model families including Gemma 4, Qwen 3.5/3.6, and Nemotron-H, with features such as multimodal input (image, video, audio for Gemma 4), tool calling, and reasoning mode.

Why it matters

Developers can now deploy inference workloads on their own machines or on-premise infrastructure rather than relying on cloud APIs, reducing latency, cost, and data exposure. The engine runs across multiple hardware backends—Apple Metal, NVIDIA CUDA, and pure CPU—so teams are not locked into a single platform.

What to watch

The project includes continuous batching with a vLLM-style paged key-value cache and block-hash prefix sharing for efficient multi-request handling, plus a test/benchmark matrix that compares TensorSharp against llama.cpp and Ollama. Support spans quantized models (Q4_K_M, Q8_0, MXFP4) that run native quantized math without dequantizing to full precision.