SERA

SERA

Ai2
+
+

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About

GPT-5.1-Codex is a specialized version of the GPT-5.1 model built for software engineering and agentic coding workflows. It is optimized for both interactive development sessions and long-horizon, autonomous execution of complex engineering tasks, such as building projects from scratch, developing features, debugging, performing large-scale refactoring, and code review. It supports tool-use, integrates naturally with developer environments, and adapts reasoning effort dynamically, moving quickly on simple tasks while spending more time on deep ones. The model is described as producing cleaner and higher-quality code outputs compared to general models, with closer adherence to developer instructions and fewer hallucinations. GPT-5.1-Codex is available via the Responses API route (rather than a standard chat API) and comes in variants including “mini” for cost-sensitive usage and “max” for the highest capability.

About

Open Coding Agents are a family of fully open, high-performance AI coding models and an associated training method released by the Allen Institute for AI that make building, customizing, and training coding agents on any repository remarkably accessible, affordable, and transparent; the platform includes models, code, training recipes, and tools that can be launched with minimal setup so users can tailor agents to their own codebases and engineering conventions for tasks like code generation, code review, debugging, maintenance, and code explanation. These agents break from the traditional closed, expensive systems by offering an open pipeline from models to training data and enabling fine-tuning on internal code to teach agents about organization-specific APIs, patterns, and workflows; the first release, SERA (Soft-verified Efficient Repository Agents), achieves state-of-the-art performance on coding benchmarks at a fraction of the typical compute cost.

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Audience

Software engineers and engineering organizations wanting a tool to generate, refactor and maintain code at scale, integrated into their existing development toolchain

Audience

Software developers, research labs, and engineering teams wanting an AI coding assistant models that can be trained and adapted to any public or private codebase for generation, review, debugging, and maintenance tasks

Support

Phone Support
24/7 Live Support
Online

Support

Phone Support
24/7 Live Support
Online

API

Offers API

API

Offers API

Screenshots and Videos

Screenshots and Videos

Pricing

$1.25 per input
Free Version
Free Trial

Pricing

Free
Free Version
Free Trial

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
Webinars
Live Online
In Person

Training

Documentation
Webinars
Live Online
In Person

Company Information

OpenAI
Founded: 2015
United States
platform.openai.com/docs/models/gpt-5.1-codex

Company Information

Ai2
Founded: 2014
United States
allenai.org/blog/open-coding-agents

Alternatives

Claude Opus 4.5

Claude Opus 4.5

Anthropic

Alternatives

Claude Code

Claude Code

Anthropic

Categories

Categories

Integrations

C
ChatGPT Plus
Codex Security
Devin Desktop
GPT-5.6 Sol
GPT-5.6 Sol Ultrafast
GPT-6 Astra
HTML
Java
Julia
Kotlin
Microsoft Foundry
NVIDIA DRIVE
PHP
R
Ruby
Shiori
Verdent
Visual Studio Code
Zo Computer

Integrations

C
ChatGPT Plus
Codex Security
Devin Desktop
GPT-5.6 Sol
GPT-5.6 Sol Ultrafast
GPT-6 Astra
HTML
Java
Julia
Kotlin
Microsoft Foundry
NVIDIA DRIVE
PHP
R
Ruby
Shiori
Verdent
Visual Studio Code
Zo Computer
Claim GPT-5.1-Codex and update features and information
Claim GPT-5.1-Codex and update features and information
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