+
+
+
+
+
+
+
+
VS
VS
VS
VS
VS
VS
GPT-5 vs GPT-5.1 Thinking
Comprehensive side-by-side LLM comparison
Both models show comparable benchmark performance. Both models have their strengths depending on your specific coding needs.
+
+
+
+
OpenAI
GPT-5, released by OpenAI on August 7, 2025, is a large language model that combines direct generation and extended reasoning in a single unified system with a built-in routing mechanism. It features a 400K token context window, 128K maximum output tokens, native multimodal support (text, image, audio, video), and demonstrated strong results across coding, mathematics, visual understanding, and health benchmarks at release. GPT-5 targets complex multi-step tasks including advanced coding, mathematical problem solving, and long-context analysis.
+
+
+
+
OpenAI
GPT-5.1 Thinking, released by OpenAI in November 2025, is an extended reasoning variant from the GPT-5.1 family that applies chain-of-thought processing to improve accuracy on complex reasoning, mathematics, and coding tasks. It targets analytical workflows where deliberate reasoning over a problem significantly improves output quality.
2 months newer
GPT-5
OpenAI
2025-08-07
GPT-5.1 Thinking
OpenAI
2025-11
Performance Metrics
Context window and performance specifications
Average performance across 2 common benchmarks
+
+
+
+
GPT-5
Average Score:50.1%(+0.1%)
+
+
+
+
GPT-5.1 Thinking
Average Score:50.0%
Performance comparison across key benchmark categories
+
+
+
+
GPT-5
Coding74.9%
Reasoning25.3%(+1.6%)
+
+
+
+
GPT-5.1 Thinking
+
+
+
+
Knowledge Cutoff
Training data recency comparison
GPT-5
2025-05
More recent knowledge cutoff means awareness of newer technologies and frameworks
Provider Availability & Performance
Available providers and their performance metrics
+
+
+
+
GPT-5
1 providers
OpenAI
+
+
+
+
GPT-5.1 Thinking
0 providers
+
+
+
+
GPT-5
Avg Score:50.1%(+0.1%)
Providers:1
+
+
+
+
GPT-5.1 Thinking
Avg Score:50.0%
Providers:0