Comprehensive side-by-side LLM comparison
GPT-4 Turbo is available on 2 providers. Both models have their strengths depending on your specific coding needs.
OpenAI
GPT-4 Turbo was introduced as an optimized version of GPT-4, designed to provide enhanced performance with improved efficiency and an expanded context window. Built with updated knowledge and refined capabilities, it offered developers a more cost-effective way to leverage GPT-4's advanced reasoning while handling longer conversations and documents.
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.
1 year newer

GPT-4 Turbo
OpenAI
2024-04-09

GPT-5 Codex
OpenAI
2025-09-15
Context window and performance specifications
GPT-4 Turbo
2023-12-31
GPT-5 Codex
2024-09-30
Available providers and their performance metrics

GPT-4 Turbo
Azure
OpenAI


GPT-4 Turbo

GPT-5 Codex

GPT-4 Turbo

GPT-5 Codex
GPT-5 Codex