Gemini 3.1 Pro vs GPT 5 Nano
Google's frontier model with a large leap in core reasoning.
Ultra-fast and lightweight GPT-5 variant for low-latency tasks.
No captured outputs for these models yet.
Frequently Asked Questions: Gemini 3.1 Pro vs GPT 5 Nano▼
Which is better, Gemini 3.1 Pro or GPT 5 Nano?
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Based on the Capability Index, Gemini 3.1 Pro scores higher (86.4 vs 73.4). However, "better" depends on your use case — pricing, speed, context window, and specific capability needs all matter.
Which is cheaper, Gemini 3.1 Pro or GPT 5 Nano?
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GPT 5 Nano has a lower blended cost. Gemini 3.1 Pro: $2.00 input / $12.00 output. GPT 5 Nano: $0.05 input / $0.40 output.
Which has a larger context window, Gemini 3.1 Pro or GPT 5 Nano?
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Gemini 3.1 Pro has a larger context window: Gemini 3.1 Pro supports 1M tokens vs GPT 5 Nano at 400K tokens.
Do both Gemini 3.1 Pro and GPT 5 Nano support vision?
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Yes, both Gemini 3.1 Pro and GPT 5 Nano support vision/image input.
What are the key differences between Gemini 3.1 Pro and GPT 5 Nano?
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Key differences: Gemini 3.1 Pro has a notably higher capability index (13.0 point gap); GPT 5 Nano is significantly cheaper. Compare full specs on this page.
Which model should I choose for my use case?
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If cost is your priority, choose the cheaper option. If you need the highest intelligence for complex tasks, pick the higher-scoring model. For long documents or codebases, choose the larger context window. You can try both Gemini 3.1 Pro and GPT 5 Nano for free on idapt.app to see which performs better for your specific needs.