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GPT-5.1 vs Grok 4
Comprehensive side-by-side LLM comparison
GPT-5.1 leads with 1.2% higher average benchmark score. Both models have their strengths depending on your specific coding needs.
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OpenAI
GPT-5.1, released by OpenAI in November 2025, is a large language model from the GPT-5 family that delivers incremental improvements in reasoning, instruction following, and multimodal understanding over GPT-5. It features a 400K token context window and targets general-purpose development, long-context analysis, and agentic workflows.
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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.
3 months newer
Grok 4
xAI
2025-07-10
GPT-5.1
OpenAI
2025-11
Performance Metrics
Context window and performance specifications
Average performance across 2 common benchmarks
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GPT-5.1
Average Score:71.7%(+1.2%)
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Grok 4
Average Score:70.5%
Performance comparison across key benchmark categories
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GPT-5.1
Science88.1%(+0.6%)
Finance55.3%(+1.8%)
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Grok 4
Provider Availability & Performance
Available providers and their performance metrics
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GPT-5.1
0 providers
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Grok 4
1 providers
xAI
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GPT-5.1
Avg Score:71.7%(+1.2%)
Providers:0
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Grok 4
Avg Score:70.5%
Providers:1