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. | 200k | 256k |
| API pricingUSD per 1M tokens · lower wins | ||
Input priceWhat you pay for everything you send the model — your question, plus any documents or earlier conversation you include with it. | $150.00 | — |
Output priceWhat you pay for the text the model writes back. It is normally the dearer half: producing an answer costs more than reading one. | $600.00 | — |
| $60,000OpenAI list price | — | |
| Overview | ||
| Company | OpenAI | SpaceXSI |
| Release date | Mar 19 2025 | Jul 9 2025 |
| Access | Closed | Closed |
| Model details | View model | View model |
Other comparisons
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o1-pro and Grok 4 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Only o1-pro has a verified first-party price for an available API: $150.00 per million input tokens and $600.00 per million output tokens. No currently available pay-as-you-go API rate is tracked for Grok 4. o1-pro shipped 112 days before Grok 4, so benchmark comparisons should account for the intervening progress.
Context windows are 200k (o1-pro) vs 256k (Grok 4).
Direct benchmark comparisons are unavailable — o1-pro and Grok 4 don't publish scores on any of the same benchmarks.