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. | 9k | 256k |
| API pricingUSD per 1M tokens · lower wins · base tier | ||
Input priceWhat you pay for everything you send the model — your question, plus any documents or earlier conversation you include with it. | — | $1.00 |
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. | — | $2.00 |
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. | — | $0.20 |
| — | $300SpaceXSI list price | |
| These models have no shared benchmark scores. | ||
SWE-Bench VerifiedCoding — Real coding tasks pulled from open-source projects — the AI has to find and fix actual bugs. A human-checked version of the original SWE-Bench. Higher is better. | — | 70.8% |
| Overview | ||
| Company | Anthropic | SpaceXSI |
| Release date | Mar 14 2023 | Aug 28 2025 |
| Access | Closed | Closed |
| Model details | View model | View model |
Other comparisons
Claude 1vsGPT-6.1 SolGrok Code Fast 1vsGPT-6.1 SolClaude 1vsGemini 4 ArgonGrok Code Fast 1vsGemini 4 ArgonClaude 1vsMuse Spark OpenGrok Code Fast 1vsMuse Spark OpenClaude 1vsDeepSeek-V4.1-Flash-1017Grok Code Fast 1vsDeepSeek-V4.1-Flash-1017Claude 1vsMistral Large 4Grok Code Fast 1vsMistral Large 4Claude 1vsKimi K3Grok Code Fast 1vsKimi K3Frequently asked questions
Claude 1 and Grok Code Fast 1 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Only Grok Code Fast 1 has a verified first-party API price: $1.00 per million input tokens and $2.00 per million output tokens. No pay-as-you-go API rate is tracked for Claude 1. Claude 1 shipped 898 days before Grok Code Fast 1, so benchmark comparisons should account for the intervening progress.
Context windows are 9k (Claude 1) vs 256k (Grok Code Fast 1).
Direct benchmark comparisons are unavailable — Claude 1 and Grok Code Fast 1 don't publish scores on any of the same benchmarks.