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GPT-5.3 Codex vs Llama 4 Maverick
Comprehensive side-by-side LLM comparison
Llama 4 Maverick supports multimodal inputs. Both models have their strengths depending on your specific coding needs.
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OpenAI
GPT-5.3 Codex, released by OpenAI in February 2026, is a coding-specialized large language model from the GPT-5.3 family. It targets software engineering workflows including automated code generation, test writing, and agentic multi-file editing, built on the incremental improvements of the GPT-5.3 generation.
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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.
10 months newer
Llama 4 Maverick
Meta AI
2025-04-05
GPT-5.3 Codex
OpenAI
2026-02
Performance Metrics
Context window and performance specifications
Provider Availability & Performance
Available providers and their performance metrics
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GPT-5.3 Codex
0 providers
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Llama 4 Maverick
1 providers
Together AI
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GPT-5.3 Codex
Avg Score:0.0%
Providers:0
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Llama 4 Maverick
Avg Score:0.0%
Providers:1