LLaMA 4 Maverick vs GPT-5.3-Codex-Spark
Meta LLaMA 4 Maverick | OpenAI GPT-5.3-Codex-Spark | |
|---|---|---|
| Overview | ||
| Company | Meta | OpenAI |
| Release date | Apr 5 2025 | Feb 12 2026 |
| Access | Open Weight | Proprietary |
| Specifications | ||
Context window | — | 128k |
| Benchmarks | ||
Nonsense detection BullshitBench v2Given a confidently-worded but nonsensical prompt, does the AI spot that it makes no sense and push back — instead of playing along and inventing an answer? The score is how often it clearly called out the nonsense. Higher is better. | 28% | — |
| Timeline | ||
| Release gap | LLaMA 4 Maverick shipped 313 days before GPT-5.3-Codex-Spark | |
Which is better: LLaMA 4 Maverick or GPT-5.3-Codex-Spark?
LLaMA 4 Maverick and GPT-5.3-Codex-Spark don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. LLaMA 4 Maverick shipped 313 days before GPT-5.3-Codex-Spark, so benchmark comparisons should account for the intervening progress.
LLaMA 4 Maverick is open weight, while GPT-5.3-Codex-Spark is proprietary.
Direct benchmark comparisons are unavailable — LLaMA 4 Maverick and GPT-5.3-Codex-Spark don't publish scores on any of the same benchmarks.
Frequently asked questions
LLaMA 4 Maverick was released by Meta on Apr 5 2025.
GPT-5.3-Codex-Spark was released by OpenAI on Feb 12 2026.
LLaMA 4 Maverick is an open weight model released by Meta. GPT-5.3-Codex-Spark is a proprietary model released by OpenAI.
Other comparisons
LLaMA 4 Maverick vs Claude Sonnet 5GPT-5.3-Codex-Spark vs Claude Sonnet 5LLaMA 4 Maverick vs Gemini OmniGPT-5.3-Codex-Spark vs Gemini OmniLLaMA 4 Maverick vs Grok 4.5GPT-5.3-Codex-Spark vs Grok 4.5LLaMA 4 Maverick vs DeepSeek-V4-ProGPT-5.3-Codex-Spark vs DeepSeek-V4-ProLLaMA 4 Maverick vs Mistral Medium 3.5GPT-5.3-Codex-Spark vs Mistral Medium 3.5LLaMA 4 Maverick vs Kimi K2.7 CodeGPT-5.3-Codex-Spark vs Kimi K2.7 Code