T3 Chat

Multi-model AI chat app and dev tools

San Francisco, CA, USA
Founded 2021

T3 Chat is a fast, multi-model AI chat application that provides access to top language models from OpenAI, Anthropic, Google, DeepSeek, and others through a single interface. The company also develops T3 Code, an open-source web GUI for AI coding agents including Codex and Claude Code, and UploadThing, an open-source file upload library for full-stack developers. T3 Chat is backed by Y Combinator and is operated by T3 Tools, Inc.

Last Updated: June 15, 2026

Current Valuation

No valuation data available

Funding Summary

$0.5M

Total reported funding

Recent Headlines

Key People

Theo Browne
CEO & Co-FounderFounder
LinkedIn Profile
Mark Florkowski
CTO & Co-FounderFounder
LinkedIn Profile

Core OSS Projects

Open-source web GUI for AI coding agents including Codex, Claude Code, and Cursor

License: MIT

File upload library for full-stack web developers

License: MIT

Business Information

Industries

Software

Technologies

Generative AIDeveloper ToolsLLMsAI Coding AgentsAI Chat

Sectors

DeveloperConsumers

Licenses

MIT

Other

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