Model Comparison
Gemini 3 Pro vs GPT-5 Medium
Gemini 3 Pro significantly outperforms across most benchmarks.
Performance Benchmarks
Comparative analysis across standard metrics
Gemini 3 Pro outperforms in 2 benchmarks (AIME 2025, GPQA), while GPT-5 Medium is better at 0 benchmarks.
Gemini 3 Pro 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 Medium specifies input context (400,000 tokens). Only GPT-5 Medium specifies output context (128,000 tokens).
Input Capabilities
Supported data types and modalities
Both Gemini 3 Pro and GPT-5 Medium support multimodal inputs.
They are both capable of processing various types of data, offering versatility in application.
Gemini 3 Pro
GPT-5 Medium
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 3 Pro was released on 2025-11-18, while GPT-5 Medium was released on 2025-08-07.
Gemini 3 Pro is 3 months newer than GPT-5 Medium.
Nov 18, 2025
5 months ago
3mo newerAug 7, 2025
8 months ago
Knowledge Cutoff
When training data ends
Gemini 3 Pro has a knowledge cutoff of 2025-01-31, while GPT-5 Medium has a cutoff of 2024-09-30.
Gemini 3 Pro has more recent training data (up to 2025-01-31), making it potentially better informed about events through that date compared to GPT-5 Medium (2024-09-30).
Jan 2025
4 mo newerSep 2024
Outputs Comparison
Key Takeaways
Gemini 3 Pro
View detailsGPT-5 Medium
View detailsOpenAI
Detailed Comparison
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FAQ
Common questions about Gemini 3 Pro vs GPT-5 Medium