Looking to save cost on AI usage for your application? Look no further as we shift the AI usage cost onto the end-user's device using the Foundry Local SDK.

It provides an easy-to-use SDK (C#, JavaScript, Rust, and Python), a curated catalog of optimized models, and automatic hardware acceleration — all in a lightweight package.

User data never leaves the device, responses start immediately with zero network latency, and your app works offline. There are no per-token costs and no backend infrastructure to maintain.

The catalog covers chat completions (for example, GPT OSS, Qwen, DeepSeek, Mistral and Phi ) and audio transcription (for example, Whisper). Every model goes through extensive quantization and compression to deliver the best balance of quality and performance