GPT-5.1 Codex Max vs Meta-Llama-3.1-405B-Instruct
GPT-5.1 Codex Max is cheaper on output tokens, while GPT-5.1 Codex Max offers a larger context window. Choose GPT-5.1 Codex Max or Meta-Llama-3.1-405B-Instruct based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | GPT-5.1 Codex Max | Meta-Llama-3.1-405B-Instruct |
|---|---|---|
| Provider | Azure Cognitive Services | Azure Cognitive Services |
| Input / 1M tokens | $1.25 | $5.33 |
| Output / 1M tokens | $10.00 | $16.00 |
| Context window | 400K | 128K |
| Parameters | — | — |
| Open weights | No | Yes |
| Released | Nov 2025 | Jul 2024 |
FAQ
Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.