Compare AI models
| Specifications | ||
Context windowHow much information the model can work with in one request, measured in tokens — pieces of words or other data. This includes your question, attachments, conversation and reply. Limits can vary by model variant and provider. | 400k | 128k |
| Overview | ||
| Company | OpenAI | SpaceXSI |
| Release date | Nov 13 2025 | Mar 28 2024 |
| Access | Closed | Closed |
| Model details | View model | View model |
Other comparisons
GPT-5.1-Codex-MinivsClaude Fable 5.2Grok‑1.5vsClaude Fable 5.2GPT-5.1-Codex-MinivsGemini 4 CarbonGrok‑1.5vsGemini 4 CarbonGPT-5.1-Codex-MinivsMuse EmberGrok‑1.5vsMuse EmberGPT-5.1-Codex-MinivsDeepSeek-V4.1-Flash-1017Grok‑1.5vsDeepSeek-V4.1-Flash-1017GPT-5.1-Codex-MinivsMistral Large 4Grok‑1.5vsMistral Large 4GPT-5.1-Codex-MinivsKimi K3.1 ProGrok‑1.5vsKimi K3.1 ProFrequently asked questions
GPT-5.1-Codex-Mini and Grok‑1.5 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Grok‑1.5 shipped 595 days before GPT-5.1-Codex-Mini, so benchmark comparisons should account for the intervening progress.
Context windows are 400k (GPT-5.1-Codex-Mini) vs 128k (Grok‑1.5).
Direct benchmark comparisons are unavailable — GPT-5.1-Codex-Mini and Grok‑1.5 don't publish scores on any of the same benchmarks.