TomatoAI Chat

A free AI assistant for questions, brainstorming, writing and code. Switch between leading open-source and commercial language models, upload a PDF or image to ask about it, and keep your conversation history in one place.

Because different models are good at different things, TomatoAI Chat lets you change model mid-conversation rather than committing up front: a fast model for quick questions, a stronger reasoning model when a problem needs working through, and a code-focused model for debugging. Custom instructions carry your context across every conversation, so you are not restating who you are and what you are working on each time.

Attach a PDF, document or screenshot and ask questions about it directly. Responses stream as they are generated, code blocks are syntax-highlighted and one click from being copied, and your history stays available so earlier answers remain easy to find.