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. | 9k | 1M |
These models have no shared benchmark scores. | ||
Terminal-Bench 4.0Agentic terminal coding — Can the AI work in a command-line terminal — running commands and finishing technical setup tasks the way a developer would? Version 4.0 recalibrated how much time, CPU and memory each task gets, removed eight tasks and fixed nineteen, so fewer runs fail for reasons that have nothing to do with the model. Scores are not comparable with earlier versions. Higher is better. | — | 60.9% |
| Overview | ||
| Company | Anthropic | Anthropic |
| Release date | Mar 14 2023 | Sep 1 2026 |
| Access | Closed | Closed |
| Model details | View model | View model |
Other comparisons
Claude 1vsGPT-6.1 SolClaude Mythos 5.1vsGPT-6.1 SolClaude 1vsGemini 4 ArgonClaude Mythos 5.1vsGemini 4 ArgonClaude 1vsMuse Spark 1.3Claude Mythos 5.1vsMuse Spark 1.3Claude 1vsGrok 4.7Claude Mythos 5.1vsGrok 4.7Claude 1vsDeepSeek-V4.1-FlashClaude Mythos 5.1vsDeepSeek-V4.1-FlashClaude 1vsMistral Large 4Claude Mythos 5.1vsMistral Large 4Frequently asked questions
Claude 1 and Claude Mythos 5.1 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Claude 1 shipped 1267 days before Claude Mythos 5.1, so benchmark comparisons should account for the intervening progress.
Context windows are 9k (Claude 1) vs 1M (Claude Mythos 5.1).
Direct benchmark comparisons are unavailable — Claude 1 and Claude Mythos 5.1 don't publish scores on any of the same benchmarks.