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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.
1M2M
These models have no shared benchmark scores.
Overview
CompanyAnthropicGoogle
Release dateSep 1 2026Feb 5 2025
AccessClosedClosed
Model detailsView modelView model

Frequently asked questions

Claude Mythos 5.1 and Gemini 2.0 Pro don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Gemini 2.0 Pro shipped 573 days before Claude Mythos 5.1, so benchmark comparisons should account for the intervening progress.

Context windows are 1M (Claude Mythos 5.1) vs 2M (Gemini 2.0 Pro).

Direct benchmark comparisons are unavailable — Claude Mythos 5.1 and Gemini 2.0 Pro don't publish scores on any of the same benchmarks.