Gemini Diffusion vs GPT-5.1 Comparison
Comparing Gemini Diffusion and GPT-5.1 across benchmarks, pricing, and capabilities.
Performance Benchmarks
Comparative analysis across standard metrics
Gemini Diffusion outperforms in 0 benchmarks, while GPT-5.1 is better at 3 benchmarks (AIME 2025, GPQA, SWE-Bench Verified).
GPT-5.1 significantly outperforms across most benchmarks.
Arena Performance
Human preference votes
Pricing Analysis
Price comparison per million tokens
Cost data unavailable.
Context Window
Maximum input and output token capacity
Only GPT-5.1 specifies input context (400,000 tokens). Only GPT-5.1 specifies output context (128,000 tokens).
Input Capabilities
Supported data types and modalities
GPT-5.1 supports multimodal inputs, whereas Gemini Diffusion does not.
GPT-5.1 can handle both text and other forms of data like images, making it suitable for multimodal applications.
Gemini Diffusion
GPT-5.1
License
Usage and distribution terms
Both models are licensed under proprietary licenses.
Both models have usage restrictions defined by their respective organizations.
Proprietary
Closed source
Proprietary
Closed source
Release Timeline
When each model was launched
Gemini Diffusion was released on 2025-05-20, while GPT-5.1 was released on 2025-11-13.
GPT-5.1 is 6 months newer than Gemini Diffusion.
May 20, 2025
9 months ago
Nov 13, 2025
4 months ago
5mo newerKnowledge Cutoff
When training data ends
GPT-5.1 has a documented knowledge cutoff of 2024-09-30, while Gemini Diffusion's cutoff date is not specified.
We can confirm GPT-5.1's training data extends to 2024-09-30, but cannot make a direct comparison without Gemini Diffusion's cutoff date.
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Sep 2024
Outputs Comparison
Key Takeaways
GPT-5.1
View detailsOpenAI
Detailed Comparison
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