Agentastic.dev

Agentastic.dev

Agentastic
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About

Agentastic.dev is a native macOS development workspace for software developers using AI coding agents. It combines an editor, terminal, browser, Git tools, and agent sessions so users can launch multiple coding agents and isolate tasks in Git worktrees or containers. Developers can inspect diffs, run code-review workflows, test applications in the built-in browser, and start work from prompts, specifications, or supported issues and team tools. The product supports a catalog of coding-agent command-line tools and allows custom terminal-based agents. Work can run locally, on SSH-accessible development machines, or in supported cloud environments. An iPhone companion lets users monitor sessions and respond when agents need input. The macOS app is free; subscriptions and API usage for third-party agents are paid to those providers.

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.

Platforms Supported

Windows Not Supported
Mac Supported
Linux Supported
Cloud Not Supported
On-Premises Not Supported
iPhone 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

Software developers and engineering teams who want to run, coordinate, and review AI coding agents across development tasks.

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

Support

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

Support

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

API

Offers API Not Supported

API

Offers API Supported

Screenshots and Videos

Screenshots and Videos

Pricing

$0
The macOS app is free to download and use. Third-party coding-agent subscriptions and API usage are billed by their respective providers.
Free Version Supported
Free Trial Not Supported

Pricing

No information available.
Free Version Not 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 Not 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

Agentastic
www.agentastic.dev/

Company Information

OpenAI
Founded: 2015
United States
openai.com

Alternatives

No Alternatives

Alternatives

GPT-5.5

GPT-5.5

OpenAI
Claude Opus 4.5

Claude Opus 4.5

Anthropic

Categories

AI Coding Agents Supported

Categories

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

Integrations

GitHub Supported
C Not Supported
ChatGPT Plus Not Supported
Cheaper Inference Not Supported
Codex CLI Not Supported
Devin Desktop Not Supported
HTML Not Supported
Java Not Supported
JetBrains Junie Not Supported
Julia Not Supported
Kotlin Not Supported
Laravel Not Supported
Microsoft Foundry Not Supported
Notion Supported
OpenAI Not Supported
OpenClaw Not Supported
R Not Supported
Ruby Not Supported
Sentry Supported
Visual Basic Not Supported

Integrations

GitHub Supported
C Supported
ChatGPT Plus Supported
Cheaper Inference Supported
Codex CLI Supported
Devin Desktop Supported
HTML Supported
Java Supported
JetBrains Junie Supported
Julia Supported
Kotlin Supported
Laravel Supported
Microsoft Foundry Supported
Notion Not Supported
OpenAI Supported
OpenClaw Supported
R Supported
Ruby Supported
Sentry Not Supported
Visual Basic Supported
Claim Agentastic.dev and update features and information
Claim Agentastic.dev and update features and information
Claim GPT-5.3-Codex and update features and information
Claim GPT-5.3-Codex and update features and information