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GPT-4.1 vs GPT-5.1
Comprehensive side-by-side LLM comparison
GPT-5.1 leads with 40.0% higher average benchmark score. Overall, GPT-5.1 is the stronger choice for coding tasks.
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OpenAI
GPT-4.1, released by OpenAI in April 2025, is a large language model from the GPT-4 family optimized for coding, precise instruction following, and long-context tasks. It features a 1M token context window and native image understanding, with improved performance on tool-calling and web development benchmarks compared to GPT-4o. GPT-4.1 targets software development workflows, long-document analysis, and applications requiring accurate, instruction-adherent outputs.
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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.
6 months newer
GPT-4.1
OpenAI
2025-04-14
GPT-5.1
OpenAI
2025-11
Performance Metrics
Context window and performance specifications
Average performance across 1 common benchmarks
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GPT-4.1
Average Score:48.1%
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GPT-5.1
Average Score:88.1%(+40.0%)
Performance comparison across key benchmark categories
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GPT-4.1
Science48.1%
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GPT-5.1
Science88.1%(+40.0%)
Provider Availability & Performance
Available providers and their performance metrics
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GPT-4.1
1 providers
OpenAI
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GPT-5.1
0 providers
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GPT-4.1
Avg Score:48.1%
Providers:1
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GPT-5.1
Avg Score:88.1%(+40.0%)
Providers:0