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GPT-5.1 Instant vs GPT-5.2
Comprehensive side-by-side LLM comparison
GPT-5.2 leads with 3.7% higher average benchmark score. Both models have their strengths depending on your specific coding needs.
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OpenAI
GPT-5.1 Instant, released by OpenAI in November 2025, is a low-latency variant from the GPT-5.1 family optimized for fast response times and high-throughput workloads. It targets real-time applications, conversational assistants, and production APIs where response speed is a primary requirement alongside GPT-5.1-generation reasoning quality.
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OpenAI
GPT-5.2, released by OpenAI on December 11, 2025, is a large language model from the GPT-5 family that improves on GPT-5 in general intelligence, long-context understanding, agentic tool-calling, and vision. It features a 400K token context window, 128K maximum output tokens, and a knowledge cutoff of August 2025. GPT-5.2 targets long-context coding tasks, extended document analysis, and complex agentic workflows requiring reliable instruction following.
1 month newer
GPT-5.1 Instant
OpenAI
2025-11
GPT-5.2
OpenAI
2025-12-11
Average performance across 1 common benchmarks
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GPT-5.1 Instant
Average Score:76.3%
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GPT-5.2
Average Score:80.0%(+3.7%)
Performance comparison across key benchmark categories
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GPT-5.1 Instant
Coding76.3%
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GPT-5.2
Coding80.0%(+3.7%)
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Knowledge Cutoff
Training data recency comparison
GPT-5.2
2025-08
More recent knowledge cutoff means awareness of newer technologies and frameworks
Provider Availability & Performance
Available providers and their performance metrics
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GPT-5.1 Instant
0 providers
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GPT-5.2
0 providers
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GPT-5.1 Instant
Avg Score:76.3%
Providers:0
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GPT-5.2
Avg Score:80.0%(+3.7%)
Providers:0