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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

Slack Code is a collaborative coding experience that brings teammates and AI agents together to build software in the open. Mentioning an agent can start a temporary code channel for a specific task, giving the team a dedicated place to follow the work, provide direction, review changes, and approve the result without cluttering regular channels. Agents begin with the conversations and knowledge they are permitted to access, helping them work with useful team context from the start. Users can describe what they want built and let an agent produce working code while everyone follows along, weighs in, and decides what ships. Code channels archive automatically when the task is complete, while their context remains searchable for future reference. Agents are organized in the Agents tab, where users can check sessions, monitor live status, and see when input is needed. Smarter threads create clearer titles so previous work is easier to find and resume.

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 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

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

Software teams and non-technical collaborators seeking to build, review, and approve AI-generated code together inside shared Slack workflows

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 Supported

API

Offers API Not Supported

Screenshots and Videos

Screenshots and Videos

Pricing

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

Pricing

$4.38 per month
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 Supported
Live Online Supported
In Person Not Supported

Company Information

OpenAI
Founded: 2015
United States
openai.com

Company Information

Slack
Founded: 2014
United States
slack.com/features/code-channels

Alternatives

Alternatives

GPT-5.5

GPT-5.5

OpenAI
Claude Opus 4.5

Claude Opus 4.5

Anthropic
MiMo Code

MiMo Code

Xiaomi Technology
JetBrains Air

JetBrains Air

JetBrains

Categories

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

Categories

AI Coding Agents Supported

Integrations

ChatGPT Supported
GitHub Supported
OpenAI Supported
OpenAI Codex Supported
Autovella Not Supported
ChatGPT Plus Supported
ChatGPT Work Not Supported
Cheaper Inference Supported
Claude Code Not Supported
Codex Security Supported
Flagsmith Not Supported
Go Supported
HTML Supported
JetBrains Junie Supported
Ruby Supported
SQL Supported
Scala Supported
Slack Not Supported
TiniDrop Not Supported
TypeScript Supported

Integrations

ChatGPT Supported
GitHub Supported
OpenAI Supported
OpenAI Codex Supported
Autovella Supported
ChatGPT Plus Not Supported
ChatGPT Work Supported
Cheaper Inference Not Supported
Claude Code Supported
Codex Security Not Supported
Flagsmith Supported
Go Not Supported
HTML Not Supported
JetBrains Junie Not Supported
Ruby Not Supported
SQL Not Supported
Scala Not Supported
Slack Supported
TiniDrop Supported
TypeScript Not Supported
Claim GPT-5.3-Codex and update features and information
Claim GPT-5.3-Codex and update features and information
Claim Slack Code and update features and information
Claim Slack Code and update features and information