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-5.1 Codex, released by OpenAI in November 2025, is a coding-specialized model from the GPT-5.1 family engineered for software engineering tasks including code generation, multi-file editing, and agentic development. It targets developers and automated coding pipelines requiring a GPT-5.1-generation model tuned for programming.
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.
7 months newer

Llama 4 Maverick
Meta AI
2025-04-05

GPT-5.1 Codex
OpenAI
2025-11
Context window and performance specifications
Available providers and their performance metrics
GPT-5.1 Codex
Llama 4 Maverick
Together AI
GPT-5.1 Codex
Llama 4 Maverick
GPT-5.1 Codex
Llama 4 Maverick