Tinfoil

Tinfoil is a private AI cloud that runs models inside secure hardware enclaves so that prompts and data stay confidential and the setup can be verified. The company describes itself as a security research lab, and its products are built on open source code that customers can check to confirm the right model is running privately. Its founders have backgrounds in secure hardware and systems, including MIT, Microsoft Research, NVIDIA and Cloudflare. There are three products. Private Chat is an AI assistant available in the browser and on iOS, with projects, web search, document upload, speech to text, cross device sync and multimodal models. The Private Inference API is OpenAI compatible, open source and verifiable, and offers open models running in GPU backed enclaves. Tinfoil Containers let a team run any Docker image in a secure enclave, bringing privacy and verifiability to custom AI workloads. The service targets developers and organizations in regulated or sensitive fields, and customer stories on the site mention legal, enterprise and network infrastructure users. Private Chat costs $20 per month. The Inference API is pay as you go with per model pricing based on input and output tokens. Containers cost $20 per month plus usage, billed hourly for CPU, memory and GPUs, and GPUs require a monthly commitment. Enterprise plans are available by request, and subscriptions can be canceled at any time.