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About

GPT-5.3-Codex is OpenAI’s most advanced agentic coding model, designed to handle complex professional work on a computer. It combines frontier-level coding performance with advanced reasoning and real-world task execution. The model is faster than previous Codex versions and can manage long-running tasks involving research, tools, and deployment. GPT-5.3-Codex supports real-time interaction, allowing users to steer progress without losing context. It excels at software engineering, web development, and terminal-based workflows. Beyond code generation, it assists with debugging, documentation, testing, and analysis. GPT-5.3-Codex acts as an interactive collaborator rather than a single-turn coding tool.

About

Herdr is a terminal-based runtime and multiplexer for developers who run AI coding agents, shells, tests, and other command-line tools. It organizes work into workspaces, tabs, and panes managed by a background server, so processes can keep running when a client disconnects. Users can reattach locally or connect to Herdr on other machines over SSH. The software detects supported coding agents and displays whether they are working, blocked, idle, or done; integrations can preserve native agent sessions after a server restart. Its CLI and local socket API let scripts and agents inspect sessions, manage panes, start or prompt agents, and wait for state changes. Developers can configure keybindings and themes and extend workflows with local executable plugins. Herdr is installed on macOS, Linux, or Windows and is released under the Apache 2.0 license.

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud 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 Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Audience

GPT-5.3-Codex is built for software engineers, product teams, researchers, and technical professionals who need an interactive AI agent capable of executing complex, end-to-end computer-based work

Audience

Developers and development teams running AI coding agents, shells, tests, and other command-line tools across projects and machines.

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 Not Supported

API

Offers API Supported

API

Offers API Supported

Screenshots and Videos

Screenshots and Videos

Pricing

No information available.
Free Version Not Supported
Free Trial Not Supported

Pricing

Free
The application is distributed under the Apache License 2.0.
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 Not Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Company Information

OpenAI
Founded: 2015
United States
openai.com

Company Information

Herdr
Founded: 2026
Turkey
herdr.dev/

Alternatives

Alternatives

Orca

Orca

Stably AI
GPT-5.5

GPT-5.5

OpenAI
Claude Opus 4.5

Claude Opus 4.5

Anthropic

Categories

Agentic AI Supported
AI Coding Agents Supported
AI Coding Models Supported
AI Models Supported

Categories

Integrations

OpenAI Codex Supported
C Supported
Cheaper Inference Supported
Codex CLI Supported
Devin Desktop Supported
F# Supported
GitHub Copilot Supported
HTML Supported
Java Supported
Oh My OpenAgent Supported
OpenAI Supported
OpenClaw Supported
OpenCode Not Supported
PHP Supported
Python Supported
Ruby Supported
Scala Supported
Shiori Supported
TypeScript Supported
Visual Studio Code Supported

Integrations

OpenAI Codex Supported
C Not Supported
Cheaper Inference Not Supported
Codex CLI Not Supported
Devin Desktop Not Supported
F# Not Supported
GitHub Copilot Not Supported
HTML Not Supported
Java Not Supported
Oh My OpenAgent Not Supported
OpenAI Not Supported
OpenClaw Not Supported
OpenCode Supported
PHP Not Supported
Python Not Supported
Ruby Not Supported
Scala Not Supported
Shiori Not Supported
TypeScript Not Supported
Visual Studio Code Not Supported
Claim GPT-5.3-Codex and update features and information
Claim GPT-5.3-Codex and update features and information
Claim Herdr and update features and information
Claim Herdr and update features and information