Comprehensive side-by-side LLM comparison
. Both models have their strengths depending on your specific coding needs.
DeepSeek
DeepSeek-V3-0324 represents a specific release iteration of DeepSeek-V3, developed to incorporate ongoing improvements and refinements. Built to provide enhanced stability and performance based on deployment learnings, it continues the evolution of the DeepSeek-V3 architecture with iterative enhancements.
OpenAI
GPT-5 Codex was developed as a specialized variant of GPT-5 optimized for programming and software development tasks. Built to understand and generate code across multiple programming languages, it serves developers with enhanced capabilities for code completion, debugging, translation, and explanation of complex codebases.
5 months newer

DeepSeek-V3 0324
DeepSeek
2025-03-25

GPT-5 Codex
OpenAI
2025-09-15
Context window and performance specifications
GPT-5 Codex
2024-09-30
Available providers and their performance metrics

DeepSeek-V3 0324
Novita

GPT-5 Codex

DeepSeek-V3 0324

GPT-5 Codex

DeepSeek-V3 0324

GPT-5 Codex