Comprehensive side-by-side LLM comparison
Llama 4 Maverick supports multimodal inputs. Both models have their strengths depending on your specific coding needs.
OpenAI
GPT-5 Codex, released by OpenAI in August 2025, is a coding-specialized large language model from the GPT-5 family engineered for software engineering, code generation, and agentic development workflows. It builds on GPT-5's architecture with optimizations targeting multi-file code editing, test generation, and automated debugging. GPT-5 Codex targets developers and agentic coding tools requiring a model tuned specifically for programming tasks.
Meta AI
Llama 4 Maverick, released by Meta on April 5, 2025, is a natively multimodal Mixture-of-Experts large language model with 400 billion total parameters and 17 billion active parameters per inference. It features a 1M token context window and supports text and image input, enabling strong performance on both language and vision tasks. Maverick targets open-source deployments requiring large-scale multimodal reasoning, released under Meta's custom license.
3 months newer

Llama 4 Maverick
Meta AI
2025-04-05

GPT-5 Codex
OpenAI
2025-08
Context window and performance specifications
Available providers and their performance metrics
GPT-5 Codex
Llama 4 Maverick
Together AI
GPT-5 Codex
Llama 4 Maverick
GPT-5 Codex
Llama 4 Maverick