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What is MiniMax-M2.1?

MiniMax-M2.1 is a high-performance, open-source agentic language model designed for modern development and automation needs. It was created to challenge the idea that advanced AI agents must remain proprietary. The model is optimized for software engineering, tool usage, and long-horizon reasoning tasks. MiniMax-M2.1 performs strongly in multilingual coding and cross-platform development scenarios. It supports building autonomous agents capable of executing complex, multi-step workflows. Developers can deploy the model locally, ensuring full control over data and execution. The architecture emphasizes robustness, consistency, and instruction accuracy. MiniMax-M2.1 demonstrates competitive results across industry-standard coding and agent benchmarks. It generalizes well across different agent frameworks and inference engines. The model is suitable for full-stack application development, automation, and AI-assisted engineering. Open weights allow experimentation, fine-tuning, and research. MiniMax-M2.1 provides a powerful foundation for the next generation of intelligent agents.

What is GPT‑5.3‑Codex‑Spark?

GPT-5.3-Codex-Spark is a specialized, ultra-fast coding model designed to enable real-time collaboration within the Codex platform. As a streamlined variant of GPT-5.3-Codex, it prioritizes latency-sensitive workflows where immediate responsiveness is critical. When deployed on Cerebras’ Wafer Scale Engine 3 hardware, Codex-Spark delivers more than 1000 tokens per second, dramatically accelerating interactive development sessions. The model supports a 128k context window, allowing developers to maintain broad project awareness while iterating quickly. It is optimized for making minimal, precise edits and refining logic or interfaces without automatically executing additional steps unless instructed. OpenAI implemented extensive infrastructure upgrades—including persistent WebSocket connections and inference stack rewrites—to reduce time-to-first-token by 50% and cut client-server overhead by up to 80%. On software engineering benchmarks such as SWE-Bench Pro and Terminal-Bench 2.0, Codex-Spark demonstrates strong capability while completing tasks in a fraction of the time required by larger models. During the research preview, usage is governed by separate rate limits and may be queued during peak demand. Codex-Spark is available to ChatGPT Pro users through the Codex app, CLI, and VS Code extension, with API access for select design partners. The model incorporates the same safety and preparedness evaluations as OpenAI’s mainline systems. This release signals a shift toward dual-mode coding systems that combine rapid interactive loops with delegated long-running tasks. By tightening the iteration cycle between idea and execution, GPT-5.3-Codex-Spark expands what developers can build in real time.

Media

Media

Integrations Supported

OpenClaw
BLACKBOX AI
Claude Code
Cline
Factory
Fireworks AI
Kilo Code
Ollama
Roo Code
Shiori

Integrations Supported

OpenClaw
Codex CLI
Codex Security
Microsoft Foundry
OpenAI
OpenAI Codex

API Availability

Has API

API Availability

Has API

Pricing Information

Free
Open source
Free Version

Pricing Information

Pricing not provided

Supported Platforms

SaaS
Windows
Mac
Linux

Supported Platforms

SaaS

Customer Service / Support

Not specified

Customer Service / Support

Web-Based Support

Training Options

Documentation Hub

Training Options

Documentation Hub

Company Facts

Organization Name

MiniMax

Date Founded

2021

Company Location

Singapore

Company Website

www.minimax.io

Company Facts

Organization Name

OpenAI

Date Founded

2015

Company Location

United States

Company Website

openai.com

Categories and Features

AI Coding Models

Not specified

AI Models

Not specified

Large Language Models

Not specified

Categories and Features

Agentic AI

Not specified

AI Coding Agents

Not specified

AI Coding Models

Not specified

AI Models

Not specified

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