T3 Code

T3 Code

Ping.gg
+
+

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About

Reasonix is an open source coding agent designed for long autonomous sessions that remain readable, auditable, and reversible. One local engine powers four interfaces: terminal, desktop app, browser, and ACP-compatible editors, with sessions, permissions, skills, and MCP servers shared across them. Plan mode holds every write until the proposed steps are reviewed and approved, while reads, writes, and shell commands are separately gated and constrained by a workspace sandbox. Each turn creates a checkpoint outside Git, allowing users to rewind a long run without affecting commit history. MCP support over stdio, SSE, and streamable HTTP merges external tools into one registry, while Markdown skills and isolated subagents extend the agent without requiring a fork. Reasonix maps a codebase once and keeps that map throughout the session, letting users queue tasks, review diffs, and resume work without losing context.

About

T3 Code is a minimal web GUI for coding agents like Codex, built to give agents a better place to work than a terminal. It is free, open source, fast, and designed so you can install it, plug in the harness you already pay for, and let your agents get to work. It provides a clean, modern interface for interacting with AI coding assistants through both web and desktop applications, with session management, persistent state, thread management, and real-time collaboration. Developers can interact with coding agents through an intuitive chat-based interface, manage coding sessions across projects, track changes with built-in git integration and checkpointing, and control access through Full Access and Supervised runtime modes. T3 Code is built to be modifiable, customizable, and forkable, with an MIT license, commercial-friendly use, TypeScript, strict end-to-end typing, and a monorepo that includes desktop, web, server, and harnesses.

Platforms Supported

Windows Supported
Mac Supported
Linux Supported
Cloud Not Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Platforms Supported

Windows Supported
Mac Supported
Linux Supported
Cloud Not Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Audience

Software developers and engineering teams wanting a tool to run long, auditable AI coding sessions, automate repository work, and extend agent capabilities across terminal, desktop, browser, and editor workflows

Audience

Developers who use AI coding agents and want a fast, open source interface to manage sessions, threads, code changes, and provider workflows in one place

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

API

Offers API Not Supported

API

Offers API Not Supported

Screenshots and Videos

Screenshots and Videos

Pricing

Free
Free Version Supported
Free Trial Not Supported

Pricing

Free
Free Version Supported
Free Trial Not Supported

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Company Information

Reasonix
China
reasonix.io

Company Information

Ping.gg
United States
t3.codes/

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Categories

AI Coding Agents Supported

Categories

Integrations

Claude Code Not Supported
Cursor Not Supported
DeepSeek Supported
DeepSeek-V4-Flash Supported
DeepSeek-V4-Pro Supported
DeepSeek-V4.1-Flash Supported
Grok Not Supported
Grok 4.3 Not Supported
Model Context Protocol (MCP) Supported
OpenAI Codex Not Supported
OpenCode Not Supported
Spawn Not Supported
SuperGrok Not Supported
TypeScript Not Supported
X (Twitter) Not Supported

Integrations

Claude Code Supported
Cursor Supported
DeepSeek Not Supported
DeepSeek-V4-Flash Not Supported
DeepSeek-V4-Pro Not Supported
DeepSeek-V4.1-Flash Not Supported
Grok Supported
Grok 4.3 Supported
Model Context Protocol (MCP) Not Supported
OpenAI Codex Supported
OpenCode Supported
Spawn Supported
SuperGrok Supported
TypeScript Supported
X (Twitter) Supported
Claim Reasonix and update features and information
Claim Reasonix and update features and information
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Claim T3 Code and update features and information