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Gemini 3.1 Pro vs GPT 5.4 Nano

At a glance
GoogleGemini 3.1 Pro

Google's frontier model with a large leap in core reasoning.

861.0M ctx$2.00/$12.00 per M#10/92
OpenAIGPT 5.4 Nano

Ultra-lightweight GPT-5.4 variant built for speed-critical, high-volume tasks.

79400K ctx$0.20/$1.25 per M#29/92
AI Output
All AI outputs

No captured outputs for these models yet.

Benchmarks
See rankings
GoogleGemini 3.1 Pro
Reasoning
Sources:Epoch ECI·Epoch AI·Provider·OpenRouter· as of 2026-07-10
Smarter
Capability
CapabilityECI86.4
Reasoning & Knowledge
Graduate Science94.1%Expert-Level46.4%Factual Recall77.3%
Math
Competition Math95.6%Research Math36.9%
Coding
Real-World Coding80.6%
Agentic
Terminal Tasks80.2%Novel Reasoning77.1%Task Horizon6.4h
OpenAIGPT 5.4 Nano
Reasoning
CodingInsufficient data
AgenticInsufficient data
Sources:Epoch ECI·Epoch AI·OpenRouter· as of 2026-07-10
Cheaper
Capability
CapabilityECI78.7
Reasoning & Knowledge
Graduate Science78.5%Expert-Level—Factual Recall12.0%
Math
Competition Math87.8%Research Math25.9%
Coding
Real-World Coding—
Agentic
Terminal Tasks—Novel Reasoning5.7%Task Horizon—
Specs
GoogleGemini 3.1 Pro
1.0M
Context
66K
Max output
Feb 2026
Released
OpenAIGPT 5.4 Nano
400K
Context
128K
Max output
Mar 2026
Released
Capabilities
GoogleGemini 3.1 Pro
Vision
Audio
Reasoning
OpenAIGPT 5.4 Nano
Vision
Audio
Reasoning
Pricing
GoogleGemini 3.1 Pro
Live pricing, shown before you run
Input$2.00/M tokens
Output$12.00/M tokens
Reasoning$12.00/M tokens
Cache read$0.20/M tokens
Cache write$0.38/M tokens
Image input$2.00/M tokens
Audio input$2.00/M tokens
Web search$0.01/search
OpenAIGPT 5.4 Nano
Live pricing, shown before you run
Input$0.20/M tokens
Output$1.25/M tokens
Cache read$0.02/M tokens
Web search$0.01/search
Chat with Gemini 3.1 ProGo to model
Chat with GPT 5.4 NanoGo to model
Frequently Asked Questions: Gemini 3.1 Pro vs GPT 5.4 Nano▼

Which is better, Gemini 3.1 Pro or GPT 5.4 Nano?

▼

Based on the Capability Index, Gemini 3.1 Pro scores higher (86.4 vs 78.7). 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 5.4 Nano?

▼

GPT 5.4 Nano has a lower blended cost. Gemini 3.1 Pro: $2.00 input / $12.00 output. GPT 5.4 Nano: $0.20 input / $1.25 output.

Which has a larger context window, Gemini 3.1 Pro or GPT 5.4 Nano?

▼

Gemini 3.1 Pro has a larger context window: Gemini 3.1 Pro supports 1M tokens vs GPT 5.4 Nano at 400K tokens.

Do both Gemini 3.1 Pro and GPT 5.4 Nano support vision?

▼

Yes, both Gemini 3.1 Pro and GPT 5.4 Nano support vision/image input.

What are the key differences between Gemini 3.1 Pro and GPT 5.4 Nano?

▼

Key differences: Gemini 3.1 Pro has a notably higher capability index (7.7 point gap); GPT 5.4 Nano is significantly cheaper. Compare full specs on this page.

Which model should I choose for my use case?

▼

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 5.4 Nano for free on idapt.app to see which performs better for your specific needs.

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