Model Comparison

GPT-4o vs Gemini DiffusionWhich is better in 2026?

GPT-4o significantly outperforms across most benchmarks.

Verdict: GPT-4o vs Gemini Diffusion — which is better?

GPT-4o (by OpenAI) and Gemini Diffusion (by Google) are two of the AI models people compare most. Here is how they stack up on benchmarks, price and capabilities, and which one to pick in 2026.

GPT-4o outperforms in 2 benchmarks (GPQA, SWE-Bench Verified), while Gemini Diffusion is better at 0 benchmarks. GPT-4o significantly outperforms across most benchmarks.

Choose GPT-4o if…

  • you want the strongest raw capability — it leads on 2 of 2 shared benchmarks

Choose Gemini Diffusion if…

  • you want the most recent training data — it shipped May 2025
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Performance Benchmarks

Comparative analysis across standard metrics

2 benchmarks

GPT-4o outperforms in 2 benchmarks (GPQA, SWE-Bench Verified), while Gemini Diffusion is better at 0 benchmarks.

GPT-4o significantly outperforms across most benchmarks.

Sat Jun 13 2026 • llm-stats.com

Arena Performance

Human preference votes

Context Window

Maximum input and output token capacity

Only GPT-4o specifies input context (128,000 tokens). Only GPT-4o specifies output context (16,384 tokens).

OpenAI
GPT-4o
Input128,000 tokens
Output16,384 tokens
Google
Gemini Diffusion
Input- tokens
Output- tokens
Sat Jun 13 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

GPT-4o supports multimodal inputs, whereas Gemini Diffusion does not.

GPT-4o can handle both text and other forms of data like images, making it suitable for multimodal applications.

GPT-4o

Text
Images
Audio
Video

Gemini Diffusion

Text
Images
Audio
Video

License

Usage and distribution terms

Both models are licensed under proprietary licenses.

Both models have usage restrictions defined by their respective organizations.

GPT-4o

Proprietary

Closed source

Gemini Diffusion

Proprietary

Closed source

Release Timeline

When each model was launched

GPT-4o was released on 2024-08-06, while Gemini Diffusion was released on 2025-05-20.

Gemini Diffusion is 10 months newer than GPT-4o.

GPT-4o

Aug 6, 2024

1.9 years ago

Gemini Diffusion

May 20, 2025

1.1 years ago

9mo newer

Knowledge Cutoff

When training data ends

Neither model specifies a knowledge cutoff date.

Unable to compare the recency of their training data.

No cutoff dates available

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Key Takeaways

OpenAI
Larger context window (128,000 tokens)
Supports multimodal inputs
Higher GPQA score (70.1% vs 40.4%)
Higher SWE-Bench Verified score (33.2% vs 22.9%)
Google

No standout differentiators in the data we have for this pair.

Detailed Comparison

AI Model Comparison Table
Feature
OpenAI
GPT-4o
Google
Gemini Diffusion

FAQ

Common questions about GPT-4o vs Gemini Diffusion.

Which is better, GPT-4o or Gemini Diffusion?

GPT-4o significantly outperforms across most benchmarks. GPT-4o is made by OpenAI and Gemini Diffusion is made by Google. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.

How does GPT-4o compare to Gemini Diffusion in benchmarks?

GPT-4o scores AI2D: 94.2%, DocVQA: 92.8%, ChartQA: 85.7%, MMLU: 85.7%, CharXiv-D: 85.3%. Gemini Diffusion scores HumanEval: 89.6%, MBPP: 76.0%, Global-MMLU-Lite: 69.1%, LBPP (v2): 56.8%, BigCodeBench: 45.4%.

What are the context window sizes for GPT-4o and Gemini Diffusion?

GPT-4o supports 128K tokens and Gemini Diffusion supports an unknown number of tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between GPT-4o and Gemini Diffusion?

Key differences include multimodal support (yes vs no). See the full comparison above for benchmark-by-benchmark results.

Who makes GPT-4o and Gemini Diffusion?

GPT-4o is developed by OpenAI and Gemini Diffusion is developed by Google.

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