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Gemini 3.1 Pro vs Grok 4
Comprehensive side-by-side LLM comparison
Gemini 3.1 Pro leads with 6.2% higher average benchmark score. Gemini 3.1 Pro offers 835.6K more tokens in context window than Grok 4. Gemini 3.1 Pro is $16.00 cheaper per million tokens. Overall, Gemini 3.1 Pro is the stronger choice for coding tasks.
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Google DeepMind
Gemini 3.1 Pro is a multimodal language model from Google DeepMind, released in preview in February 2026 as a point-version upgrade to Gemini 3 Pro focused on improving reasoning depth, factual grounding, and coding and agentic task performance. The model accepts text, images, video, audio, and PDFs as inputs across a 1M token context window, extending the multimodal breadth of the Gemini 3 series with a companion endpoint specifically optimized for custom tool use in agentic pipelines. Google describes it as built to refine the reliability and performance of the Gemini 3 Pro series, reflecting an incremental engineering iteration rather than an architectural overhaul.
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xAI
Grok 4, released by xAI on July 10, 2025, is a large language model featuring first-principles reasoning and comprehensive multimodal support. It features a 260K token context window and demonstrated strong performance on advanced reasoning and coding benchmarks. Grok 4 targets complex multi-step reasoning tasks, scientific analysis, and agentic workflows via the xAI API.
7 months newer
Grok 4
xAI
2025-07-10
Gemini 3.1 Pro
Google DeepMind
2026-02-19
Pricing Comparison
Cost per million tokens (USD)
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Gemini 3.1 Pro
Input:$2.00
Output:$12.00($16.00 cheaper)
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Grok 4
Input:$5.00
Output:$25.00
Performance Metrics
Context window and performance specifications
Average performance across 1 common benchmarks
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Gemini 3.1 Pro
Average Score:59.7%(+6.2%)
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Grok 4
Average Score:53.5%
Performance comparison across key benchmark categories
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Gemini 3.1 Pro
Finance59.7%(+6.2%)
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Grok 4
Finance53.5%
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Knowledge Cutoff
Training data recency comparison
Gemini 3.1 Pro
2025-01
More recent knowledge cutoff means awareness of newer technologies and frameworks
Provider Availability & Performance
Available providers and their performance metrics
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Gemini 3.1 Pro
1 providers
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Grok 4
1 providers
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Gemini 3.1 Pro
Avg Score:59.7%(+6.2%)
Providers:1
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Grok 4
Avg Score:53.5%
Providers:1