GPT-5.3-CodexOpenAI
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Related Products
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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.
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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.
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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
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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
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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
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Audience
Developers and development teams running AI coding agents, shells, tests, and other command-line tools across projects and machines.
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Support
Phone Support
Not Supported
24/7 Live Support
Not Supported
Online
Supported
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Support
Phone Support
Not Supported
24/7 Live Support
Not Supported
Online
Not Supported
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API
Offers API
Supported
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API
Offers API
Supported
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Screenshots and Videos |
Screenshots and Videos |
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Pricing
No information available.
Free Version
Not Supported
Free Trial
Not Supported
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Pricing
Free
The application is distributed under the Apache License 2.0.
Free Version
Supported
Free Trial
Not Supported
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Reviews/
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Reviews/
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Training
Documentation
Supported
Webinars
Not Supported
Live Online
Not Supported
In Person
Not Supported
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Training
Documentation
Not Supported
Webinars
Not Supported
Live Online
Not Supported
In Person
Not Supported
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Company InformationOpenAI
Founded: 2015
United States
openai.com
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Company InformationHerdr
Founded: 2026
Turkey
herdr.dev/
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Alternatives |
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Categories |
Categories |
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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
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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
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