Experience GPT-5.1. Free on XXAI.
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Why Use GPT-5.1 on XXAI?
Don't just use GPT-5.1. Supercharge it. XXAI integrates it into your workflow like no other platform.
Completely Free Access
Use your 100 daily universal credits to experience GPT-5.1 and other flagship models without paying a subscription.
All Models in One App
On XXAI, you can instantly compare GPT-5.1's answer against Claude 4.5, Gemini 2.5 Pro, and others, all in one click.
Desktop Copilot
Use our desktop app to summon GPT-5.1 inside any app or website with a simple shortcut (Shift + A).
GPT-5.1 vs. The Titans
See how GPT-5.1 raises the bar against other industry-leading models.
| Capability | GPT-5.1 | Claude Sonnet 4.5 | Grok 4.1 |
|---|---|---|---|
| Complex Reasoning | Deep reasoning with intelligent switching between thinking and fast modes | Advanced hybrid | Fast real-time reasoning performance |
| Speed | Moderate (slower with thinking enabled, can be disabled for acceleration) | Fast | Extremely fast (optimized for speed) |
| Knowledge Cutoff | June 2024 | Sept 2025 | Real-time updates |
| Context Window | 256k | 200k (1M beta) | 128k |
| Best For | Complex coding tasks, deep analysis | Business analysis | Real-time applications, rapid responses |
What GPT-5.1 Can Do
Explore real examples of GPT-5.1's advanced capabilities, generated on XXAI.
Prompt: Create a single-page app in a single HTML file with the following requirements: - Name: Jumping Ball Runner - Goal: Jump over obstacles to survive as long as possible. - Features: Increasing speed, high score tracking, retry button, and funny sounds for actions and events. - The UI should be colorful, with parallax scrolling backgrounds. - The characters should look cartoonish and be fun to watch. - The game should be enjoyable for everyone.
Prompt：I'm feeling stressed and could use some relaxation tips
Prompt：Always respond with six words
Prompt：explain BABIP and wRC+
GPT-5.1 Tutorials & Prompts
Learn how to master the next generation of AI with our expert guides.
How Our AI Bypasser Works
Transform your content in three simple steps.
Paste Your AI Text
Copy the content generated from any AI tool and paste it into the input box on the left.
Click & Convert
Select your desired purpose and readability, then hit the "Humanize" button to let XXAI work its magic.
Use with Confidence
In seconds, copy the fully undetectable, natural-sounding text from the output box on the right.
GPT-5.1 on XXAI: FAQ
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