Gemini 3.1 Pro vs Grok 4.20
Google's frontier model with a large leap in core reasoning.
xAI's newest flagship model with industry-leading speed and agentic tool calling.
No captured outputs for these models yet.
Frequently Asked Questions: Gemini 3.1 Pro vs Grok 4.20▼
Which is better, Gemini 3.1 Pro or Grok 4.20?
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Based on the Capability Index, Gemini 3.1 Pro scores higher (86.4 vs 85.7). 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 Grok 4.20?
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Grok 4.20 has a lower blended cost. Gemini 3.1 Pro: $2.00 input / $12.00 output. Grok 4.20: $1.25 input / $2.50 output.
Which has a larger context window, Gemini 3.1 Pro or Grok 4.20?
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Grok 4.20 has a larger context window: Gemini 3.1 Pro supports 1M tokens vs Grok 4.20 at 2M tokens.
Do both Gemini 3.1 Pro and Grok 4.20 support vision?
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Yes, both Gemini 3.1 Pro and Grok 4.20 support vision/image input.
What are the key differences between Gemini 3.1 Pro and Grok 4.20?
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Gemini 3.1 Pro and Grok 4.20 have similar overall capabilities. The main differences lie in pricing, context window size, and provider-specific strengths. Use this comparison page to review all metrics side by side.
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 Grok 4.20 for free on idapt.app to see which performs better for your specific needs.