Compare AI models
| Specifications | ||
Context windowHow much text the model can hold in mind at once — your question, any documents you attach, the conversation so far, and its own reply. Go past it and the earliest part falls out of view. | 200k | — |
| Overview | ||
| Company | Anthropic | SpaceXAI |
| Release date | Nov 21 2023 | Aug 23 2025 |
| Access | Closed | Closed |
| Model details | View model | View model |
Other comparisons
Claude 2.1vsGPT-6.1 SolGrok 2.5vsGPT-6.1 SolClaude 2.1vsGemini 4 ArgonGrok 2.5vsGemini 4 ArgonClaude 2.1vsMuse Spark 1.3Grok 2.5vsMuse Spark 1.3Claude 2.1vsDeepSeek-V4.1-FlashGrok 2.5vsDeepSeek-V4.1-FlashClaude 2.1vsMistral Large 4Grok 2.5vsMistral Large 4Claude 2.1vsKimi K3Grok 2.5vsKimi K3Frequently asked questions
Claude 2.1 and Grok 2.5 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Claude 2.1 shipped 641 days before Grok 2.5, 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 — Claude 2.1 and Grok 2.5 don't publish scores on any of the same benchmarks.