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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.
200k—
These models have no shared benchmark scores.
Overview
CompanyAnthropicGoogle
Release dateMay 22 2025Oct 28 2026
AccessClosedClosed
Model detailsView modelView model

Frequently asked questions

Claude Opus 4 and Gemini 4 Carbon don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Claude Opus 4 shipped 524 days before Gemini 4 Carbon, 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 Opus 4 and Gemini 4 Carbon don't publish scores on any of the same benchmarks.