GPT-5.5

GPT-5.5

OpenAI
Mistral Large 4

Mistral Large 4

Mistral AI
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About

GPT-5.5 is an advanced AI model designed to handle complex, real-world tasks with greater autonomy and efficiency. It quickly understands user intent and can execute multi-step workflows such as coding, research, data analysis, and document creation with minimal guidance. Instead of requiring step-by-step instructions, GPT-5.5 plans tasks, uses tools, evaluates outputs, and continues working until completion. It excels in knowledge work, software development, and analytical problem-solving, helping users move from idea to execution faster. The model is built to operate across tools and environments, making it highly effective for modern digital workflows. With strong reasoning and persistence, GPT-5.5 enables individuals and teams to complete demanding work more efficiently and accurately.

About

Mistral Large 4 is a general-purpose multimodal language model available through Mistral’s hosted inference API. It combines instruction following, reasoning and agentic capabilities, and accepts image and text inputs. Developers can use it for chat completion, structured outputs, function calling, document question answering, tool-assisted workflows and other application features. Its documented use cases include conversational assistants, coding and software engineering agents, cybersecurity analysis, finance and legal workflows, scientific research, data extraction, summarization, and analysis of documents, charts and images. Mistral Large 4 is designed for developers, researchers, businesses and public-sector teams building AI-powered applications across industries such as engineering, manufacturing, finance, logistics and science.

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 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

GPT-5.5 is ideal for enterprises, developers, researchers, and business teams looking to automate complex workflows, enhance productivity, and scale operations using AI and workspace agents

Audience

Developers, researchers, businesses, and public-sector teams building AI applications and workflows, including work in engineering, manufacturing, finance, cybersecurity, and science.

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

Screenshots and Videos

Pricing

$5 per 1M tokens (input)
$5 per 1M input tokens and $30 per 1M output tokens, with a 1M context window
Free Version Not Supported
Free Trial Not Supported

Pricing

$1.36 per 1M input tokens
Input: $1.36 per 1 million tokens
Output: $4.18 per 1 million tokens
Free Version Supported
Free Trial Not Supported

Reviews/Ratings

Overall 5.0 / 5
ease 5.0 / 5
features 5.0 / 5
design 5.0 / 5
support 5.0 / 5

Reviews/Ratings

Overall 4.0 / 5
ease 4.0 / 5

Pros & Cons from Real Users

Pros

  • GPT-5.5 has been outstanding for AI agents and coding work. It feels smarter, more persistent, and better at handling complex technical tasks than previous models. I use it for debugging, writing code, planning agent workflows, and working through multi-step software problems. It is especially strong when I need clear reasoning, structured output, and practical code that I can actually use.

Cons

  • GPT-5.5 still works best with clear instructions and enough project context. For large codebases or production-level changes, I still review the code carefully before shipping it.

Pros & Cons from Real Users

Pros

  • Mistral Large 4 is a big improvement over previous Mistral models. I am impressed with its coding, reasoning, and ability to handle longer, more complicated tasks without losing track of the instructions. The multimodal capabilities are also quite good, especially when working with documents, charts, and images.

Cons

  • The model is powerful, but it isn't as consistently reliable as the very best closed models on difficult reasoning tasks. I occasionally had to correct or re-prompt it when an answer sounded confident but missed an important detail. It's also an enormous model, so running the open weights yourself will require substantial hardware.

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
openai.com

Company Information

Mistral AI
Founded: 2023
France
docs.mistral.ai/models/mistral-large-4-0

Alternatives

Alternatives

GPT-6 Astra

GPT-6 Astra

OpenAI
GPT-5.6 Sol

GPT-5.6 Sol

OpenAI
Claude Opus 5.5

Claude Opus 5.5

Anthropic
GPT-5.5 Pro

GPT-5.5 Pro

OpenAI
Mistral Large 2

Mistral Large 2

Mistral AI
Mistral Large 3

Mistral Large 3

Mistral AI

Categories

AI Coding Models Supported
AI Models Supported
AI Vision Models Supported
Foundation Models Supported
Multimodal Models Supported

Categories

AI Coding Models Supported
AI Models Supported
Foundation Models Supported
Multimodal Models Supported

Integrations

AIHubMix Supported
AWS GovCloud Supported
Anuma Supported
Brokk Supported
ChatGPT Canvas Supported
ChatGPT Go Supported
EaseMate AI Supported
GPT-5.5 Thinking Supported
GPT‑5.4‑Cyber Supported
GitHub Supported
GitHub Copilot Supported
HTML Supported
Higgsfield Supercomputer Supported
Microsoft Foundry Supported
Muse Supported
OpenRouter Supported
React Supported
Transor Supported
Viktor Supported
Xcode Supported

Integrations

AIHubMix Not Supported
AWS GovCloud Not Supported
Anuma Not Supported
Brokk Not Supported
ChatGPT Canvas Not Supported
ChatGPT Go Not Supported
EaseMate AI Not Supported
GPT-5.5 Thinking Not Supported
GPT‑5.4‑Cyber Not Supported
GitHub Not Supported
GitHub Copilot Not Supported
HTML Not Supported
Higgsfield Supercomputer Not Supported
Microsoft Foundry Not Supported
Muse Not Supported
OpenRouter Not Supported
React Not Supported
Transor Not Supported
Viktor Not Supported
Xcode Not Supported
Claim GPT-5.5 and update features and information
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