ForM - Foundation Model Labs

Test prompts for Apple's on-device models without writing code. Set instructions, adjust parameters, and iterate fast.

Apple's on-device models don't come with a way to test prompts directly. ForM gives you that: a chat interface connected to Foundation Models where you can try things out before bringing them into your app.

• System instructions editor

• Temperature and sampling controls

• Streaming responses

• Thinking time and token count per response

• Multiple chat sessions

• Stop and regenerate

• Runs fully on-device. No API keys or accounts

  Requires iPadOS 26 with an A17 Pro chip or later.