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GPT-4.1 Mini
GPT:4.1 mini is an advanced artificial intelligence large model released by Open AI. It's particularly good at understanding and generating natural language text, and it's very responsive.
GPT-5.6 Luna
GPT-5.6 has improvements and improvements compared to GPT-5. It responds faster and is better at processing information such as voice, pictures, and videos.
Grok-4.1 Fast
Grok Pro is Xai's latest model. Compared with Grok, Grok Pro has 10 times the computing power and can handle more complex problems. It has significant capabilities in mathematics, logic, and creation.
DeepSeek V4
Deepseek AI character chat version, good with user chat, makes chat more interesting and rich, and rich in creativity
Gemini 3.0 Flash
Gemini 3.0 Flash is a multimodal model launched by Google. It has the advantage of efficient and fast response speed and is suitable for application scenarios with high real-time requirements.
Gemini 3.5 Flash Lite
The response is fast, and also very intelligent.

One Platform. Multiple AI Models.

Meet, chat, and create with leading AI models like GPT-4.1 Mini, GPT-5.6 Luna, Grok-4.1 Fast and more — all in a single, simple platform.

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Google Ratings
68,000,000+
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Schools & Teams

Trusted by millions of users worldwide

...

GPT 5.5 - Try OpenAI’s Model on ChatGOAT AI for Free

GPT 5.5 is OpenAI's flagship model in the GPT-5 family, built for deep reasoning, agentic coding, and reliable computer-use workflows. It ships with a 400K-token context window, multimodal input across text, vision, and code, and vendor-reported benchmark scores that lead its generation on the hardest coding and reasoning tasks.

Reasoning Capabilities

GPT 5.5 delivers the strongest multi-step reasoning in its family. It carries OpenAI's stricter calibration, tending to admit uncertainty rather than confabulate - one reason teams keep using it for high-stakes work even when cheaper models match it on paper.

Coding & Agentic Performance

Coding is GPT 5.5's headline strength. It produces the highest first-attempt patch quality in the family - ideal for modifying code that must keep compiling and passing tests - and posts the lowest rate of mis-routed tool calls on long agent loops.

Context Window & Output

A 400K-token context window (billed at standard rates across the full window) and up to 128K tokens of output make it well-suited to long documents and multi-file codebases. A reasoning effort parameter (minimal/low/medium/high) lets you dial depth against cost.

Multimodal & Computer Use

GPT 5.5 accepts text, vision, and code inputs, so screenshot-driven and document-vision tasks work natively (image generation uses OpenAI's Images API separately). Its computer-use reliability on multi-step GUI sequences is materially better than earlier models, meaning fewer mid-run derailments.

Why Use GPT 5.5 on ChatGOAT AI

Access GPT 5.5 alongside Grok, Claude, Gemini, and Qwen in one workspace - compare models side by side, work across chat, files, and images, and start instantly with no setup.

Ultimate Multimodal AI Hub

Seamlessly leverage advanced reasoning, document analysis, and visual creation all within one unified platform, streamlining your entire creative and professional workflow.

Instant No-Setup Experience

Access GPT 5.5 directly via your web browser, with complex downloads, plugins, or local environment configuration completely eliminated.

Powerful Long-Context Intelligence

Benefit from GPT 5.5’s ultra-large context window for reading huge reports, entire codebases, and long research materials with full context retention.

Advanced Multimodal Capabilities

Effortlessly process text, charts, screenshots, and documents, enabling deep visual analysis, design iteration, and data interpretation in a single chat.

How to Try GPT 5.5 On ChatGOAT AI

Using GPT 5.5 on ChatGOAT only takes a few steps:

Step 1: Choose GPT 5.5

Choose GPT 5.5 from the available AI models.

Step 2: Enter Your Prompt

Enter the prompt by typing a question, uploading a file, or describing the task you need help with.

Step 3: Review and Refine

Review and refine by asking follow-up questions, editing the output, or exploring new ideas in the same conversation.

Try GPT 5.5 for Free Now

You don't need a stack of subscriptions to work with Frontier AI. Start chatting, writing, and coding with OpenAI's leading models free on no sign-up, no cost - and escalate to GPT 5.5-class reasoning whenever the task demands it.

Why Our Users Love GPT 5.5

User reviews of GPT-5.5

GPT-5.5 has incredible reasoning and powerful agent capabilities. It can tackle complex multi-step projects, write full codebases, and research thoroughly while maintaining deep context across long documents.
Ethan
Ethan

GPT-5.5 has incredible reasoning and powerful agent capabilities. It can tackle complex multi-step projects, write full codebases, and research thoroughly while maintaining deep context across long documents.

The advanced tool usage is a game-changer. It autonomously gathers data, analyzes spreadsheets, and creates polished reports, drastically cutting down my manual work every week.
Chloe
Chloe

The advanced tool usage is a game-changer. It autonomously gathers data, analyzes spreadsheets, and creates polished reports, drastically cutting down my manual work every week.

Amazing for deep technical work and advanced learning. It breaks down complex math, engineering concepts and research papers clearly, with thoughtful, well-verified explanations.
Liam
Liam

Amazing for deep technical work and advanced learning. It breaks down complex math, engineering concepts and research papers clearly, with thoughtful, well-verified explanations.

Multimodal understanding is seamless. It reads charts, images and documents accurately, integrates visual context into reasoning, and delivers holistic solutions for design and data tasks.
Ava
Ava

Multimodal understanding is seamless. It reads charts, images and documents accurately, integrates visual context into reasoning, and delivers holistic solutions for design and data tasks.

I rely on GPT-5.5 for strategic planning and content creation. It understands vague goals, iterates intelligently, and produces high-quality writing and presentations with minimal revisions.
Noah
Noah

I rely on GPT-5.5 for strategic planning and content creation. It understands vague goals, iterates intelligently, and produces high-quality writing and presentations with minimal revisions.

Robust, thoughtful, and capable of end-to-end task completion. GPT-5.5 handles sophisticated professional workflows, making big projects feel far more manageable every single day.
Mia
Mia

Robust, thoughtful, and capable of end-to-end task completion. GPT-5.5 handles sophisticated professional workflows, making big projects feel far more manageable every single day.

FAQ

Everything you need to know about GPT 5.5

What is GPT 5.5's context window?

Can GPT 5.5 handle images?

When should I pick GPT 5.5 over GPT-5.1?

How much does GPT 5.5 cost?

Is GPT 5.5 better than Gemini 3?

Does GPT 5.5 support prompt caching?