Comprehensive side-by-side LLM comparison
GPT-5.2 leads with 13.5% higher average benchmark score. GPT-5.2 supports multimodal inputs. Overall, GPT-5.2 is the stronger choice for coding tasks.
DeepSeek
DeepSeek-V3.2, released by DeepSeek on December 1, 2025, is a large language model with 685 billion total parameters featuring integrated thinking in tool-use and support for both reasoning and direct generation modes. It features a 128K token context window and introduced large-scale agent training across 1,800+ environments. DeepSeek-V3.2 targets agentic workflows, complex instruction following, and coding tasks under an open MIT license.
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.
10 days newer

DeepSeek-V3.2
DeepSeek
2025-12-01

GPT-5.2
OpenAI
2025-12-11
Context window and performance specifications
Average performance across 1 common benchmarks
DeepSeek-V3.2
GPT-5.2
Performance comparison across key benchmark categories
DeepSeek-V3.2
GPT-5.2
GPT-5.2
2025-08
Available providers and their performance metrics
DeepSeek-V3.2
DeepSeek
GPT-5.2
DeepSeek-V3.2
GPT-5.2
DeepSeek-V3.2
GPT-5.2