Comprehensive side-by-side LLM comparison
. Both models have their strengths depending on your specific coding needs.
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.
IBM
Granite 4.0 Tiny Preview was introduced as an experimental ultra-compact model, designed to demonstrate IBM's progress in efficient model development. Built to explore the boundaries of what small models can achieve for enterprise applications, it represents an early look at next-generation Granite capabilities.
4 months newer

IBM Granite 4.0 Tiny Preview
IBM
2025-05-02

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

GPT-5 Codex

IBM Granite 4.0 Tiny Preview

GPT-5 Codex

IBM Granite 4.0 Tiny Preview