GPT-5.1-Codex-MaxOpenAI
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Related Products
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About
Archimyst is an AI-powered system architecture design platform that helps users quickly create, test, simulate, and document complex backend and cloud system designs with intelligent automation rather than static diagrams. It generates production-ready architectures from simple prompts and lets teams simulate performance, resilience, traffic spikes, failure scenarios, and cost implications to validate designs before code is written or deployed, reducing risk and guesswork. Built to support full-scale systems from MVPs to enterprise services, Archimyst offers AI-driven architecture diagrams, resilience testing, and optimization insights, allowing users to refine service meshes, database strategies, cloud infrastructure, and more with automated analysis and feedback. It also provides features for agentic engineering and IDE integration so teams can align generated architecture with code workflows, visualize entire tech stacks, and identify bottlenecks.
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About
GPT-5.1-Codex-Max is the high-capability variant of the GPT-5.1-Codex series designed specifically for software engineering and agentic code workflows. It builds on the base GPT-5.1 architecture with a focus on long-horizon tasks such as full project generation, large-scale refactoring, and autonomous multi-step bug and test management. It introduces adaptive reasoning, meaning the system dynamically allocates more compute for complex problems and less for simpler ones, to improve efficiency and output quality. It also supports tool use (IDE-integrated workflows, version control, CI/CD pipelines) and offers higher fidelity in code review, debugging, and agentic behavior than general-purpose models. Alongside Max, there are lighter variants such as Codex-Mini for cost-sensitive or scale use-cases. The GPT-5.1-Codex family is available in developer previews, including via integrations like GitHub Copilot.
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Platforms Supported
Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook
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Platforms Supported
Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook
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Audience
Software architects, backend engineers, DevOps teams, and technical product leaders seeking a tool to design, simulate, and validate robust system architectures before deployment
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Audience
Development teams and engineering organizations requiring a tool for generating, refactoring and maintaining large-scale codebases
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Support
Phone Support
24/7 Live Support
Online
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Support
Phone Support
24/7 Live Support
Online
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API
Offers API
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API
Offers API
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Screenshots and Videos |
Screenshots and Videos |
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Pricing
$29 per month
Free Version
Free Trial
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Pricing
No information available.
Free Version
Free Trial
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Reviews/
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Reviews/
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Training
Documentation
Webinars
Live Online
In Person
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Training
Documentation
Webinars
Live Online
In Person
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Company InformationArchimyst
Founded: 2026
United States
www.archimyst.com
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Company InformationOpenAI
Founded: 2015
United States
openai.com/index/gpt-5-1-codex-max/
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Categories |
Categories |
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Integrations
Cursor
OpenAI Codex
Visual Studio Code
C
ChatGPT
GPT-5.2 Instant
GPT-5.2 Pro
GitHub
GitHub Copilot
Go
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Integrations
Cursor
OpenAI Codex
Visual Studio Code
C
ChatGPT
GPT-5.2 Instant
GPT-5.2 Pro
GitHub
GitHub Copilot
Go
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