Compare AI models
| API pricingUSD per 1M tokens · lower wins | ||
Cheapest inputLowest input rate across third-party providers, excluding the lab itself. The cheapest endpoint may run a quantised build or a shorter context — see "Available from" on the model page. | $1.25Azure | — |
Cheapest outputLowest output rate across third-party providers, excluding the lab itself. May come from a different provider than the cheapest input. | $10.00Azure | — |
| Overview | ||
| Company | OpenAI | SpaceXAI |
| Release date | Nov 19 2025 | Aug 14 2024 |
| Access | Closed | Closed |
| Model details | View model | View model |
Other comparisons
GPT-5.1-Codex-MaxvsClaude Sonnet 5.5Grok‑2vsClaude Sonnet 5.5GPT-5.1-Codex-MaxvsGemini 4 ArgonGrok‑2vsGemini 4 ArgonGPT-5.1-Codex-MaxvsMuse Spark 1.3Grok‑2vsMuse Spark 1.3GPT-5.1-Codex-MaxvsDeepSeek-V4.1-FlashGrok‑2vsDeepSeek-V4.1-FlashGPT-5.1-Codex-MaxvsMistral Large 4Grok‑2vsMistral Large 4GPT-5.1-Codex-MaxvsKimi K3Grok‑2vsKimi K3Frequently asked questions
GPT-5.1-Codex-Max and Grok‑2 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Grok‑2 shipped 462 days before GPT-5.1-Codex-Max, so benchmark comparisons should account for the intervening progress.
Published specifications for these two models are limited — see each model page for the latest details.
Direct benchmark comparisons are unavailable — GPT-5.1-Codex-Max and Grok‑2 don't publish scores on any of the same benchmarks.