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. | 256k | 200k |
| 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. | — | $2.00 |
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. | — | $8.00 |
Cached input priceA reduced rate for text you send over and over. If every request starts with the same instructions or the same document, the provider keeps a copy ready and charges less to read it again. | — | $0.50 |
Cheapest inputLowest input rate across every provider on OpenRouter, the lab included. The cheapest endpoint may run a quantised build or a shorter context — see "Available from" on the model page. | — | $2.00OpenAI |
Cheapest outputLowest output rate across every provider on OpenRouter, the lab included. May come from a different provider than the cheapest input. | — | $8.00OpenAI |
| — | $800OpenAI list price | |
| These models have no shared benchmark scores. | ||
BullshitBench v2Nonsense detection — Given 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. | — | 26% |
| Overview | ||
| Company | Mistral | OpenAI |
| Release date | Jan 13 2025 | Apr 16 2025 |
| Access | Closed | Closed |
| Model details | View model | View model |
Other comparisons
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Codestral 25.01 and o3 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Only o3 has a verified first-party API price: $2.00 per million input tokens and $8.00 per million output tokens. No pay-as-you-go API rate is tracked for Codestral 25.01. Codestral 25.01 shipped 93 days before o3, so benchmark comparisons should account for the intervening progress.
Context windows are 256k (Codestral 25.01) vs 200k (o3).
Direct benchmark comparisons are unavailable — Codestral 25.01 and o3 don't publish scores on any of the same benchmarks.