GPT-5.1-Codex vs. MiniMax-M2.1 Comparison


GPT-5.1-Codex OpenAI	MiniMax-M2.1 MiniMax	+	+
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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 MiniMax-M2.1 is an open-source, agentic large language model designed for advanced coding, tool use, and long-horizon planning. It was released to the community to make high-performance AI agents more transparent, controllable, and accessible. The model is optimized for robustness in software engineering, instruction following, and complex multi-step workflows. MiniMax-M2.1 supports multilingual development and performs strongly across real-world coding scenarios. It is suitable for building autonomous applications that require reasoning, planning, and execution. The model weights are fully open, enabling local deployment and customization. MiniMax-M2.1 represents a major step toward democratizing top-tier agent capabilities.
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 Supported Mac Supported Linux Supported Cloud Supported On-Premises Not Supported iPhone Not Supported iPad Not Supported Android Not Supported Chromebook Not Supported
Audience Software engineers and engineering organizations wanting a tool to generate, refactor and maintain code at scale, integrated into their existing development toolchain	Audience MiniMax-M2.1 is ideal for AI researchers, developers, and engineering teams building autonomous agents, coding assistants, and complex workflow automation systems
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 Not Supported
API Offers API Supported	API Offers API Supported
Screenshots and Videos View more images or videos	Screenshots and Videos View more images or videos
Pricing $1.25 per input Free Version Supported Free Trial Not Supported	Pricing Free Open source 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 Not Supported Live Online Not Supported In Person Not Supported
Company Information OpenAI Founded: 2015 United States platform.openai.com/docs/models/gpt-5.1-codex	Company Information MiniMax Founded: 2021 Singapore www.minimax.io
Alternatives Claude Opus 4.5 Anthropic	Alternatives Claude Opus 4.5 Anthropic
Claude Sonnet 4.5 Anthropic	Claude Opus 4.6 Anthropic
Composer 1.5 Cursor	Claude Sonnet 4.5 Anthropic
GPT-5.1-Codex-Max OpenAI	MiniMax M3 MiniMax
GPT‑5-Codex OpenAI View All	MiniMax M2.5 MiniMax View All
Categories Agentic AI Supported AI Coding Agents Supported AI Coding Models Supported AI Models Supported	Categories AI Coding Models Supported AI Models Supported Large Language Models Supported

Integrations Shiori Supported ChatGPT Supported ChatGPT Plus Supported Codex CLI Supported Cursor Supported F# Supported GPT-5.6 Terra Supported GPT-6 Sol Supported Go Supported Holo4 Supported Java Supported Julia Supported Laravel Supported Ollama Not Supported OpenAI Codex Supported Roo Code Not Supported Ruby Supported Verdent Supported Visual Basic Supported Zo Computer Supported Show More Integrations View All 46 Integrations	Integrations Shiori Supported ChatGPT Not Supported ChatGPT Plus Not Supported Codex CLI Not Supported Cursor Not Supported F# Not Supported GPT-5.6 Terra Not Supported GPT-6 Sol Not Supported Go Not Supported Holo4 Not Supported Java Not Supported Julia Not Supported Laravel Not Supported Ollama Supported OpenAI Codex Not Supported Roo Code Supported Ruby Not Supported Verdent Not Supported Visual Basic Not Supported Zo Computer Not Supported Show More Integrations View All 10 Integrations
Claim GPT-5.1-Codex and update features and information Claim GPT-5.1-Codex and update features and information	Claim MiniMax-M2.1 and update features and information Claim MiniMax-M2.1 and update features and information