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Monday, October 12, 2026Sources checked

ChatGPT

ChatGPT-6 or Claude Opus 5.5? Here’s which AI I'd use for writing, planning and 5 other everyday tasks

By Amanda Caswell, Tom's Guide

ChatGPT-6 or Claude Opus 5.5? Here’s which AI I'd use for writing, planning and 5 other everyday tasks

Picture: Tom's Guide

ChatGPT-6 and Claude Opus 5.5 arrived within days of each other, and after testing them side by side, I learned that choosing between them isn't as simple as picking a model. This is because, although Claude came out ahead in four of the five tests, the results didn't convince me to abandon ChatGPT. Instead, the differences between the two very capable models highlighted when each one is the most valuable for any given task, particularly the ones I do every single day. Claude Opus 5.5 consistently impresses me when a task requires judgment or when I need my messy notes or thoughts to be turned into something useful. Meanwhile, ChatGPT-6 has its own strengths, particularly when I want structure, clarity and an answer I can use immediately.

This report was first published by Tom's Guide. What you see here is a brief excerpt. The full text is theirs.

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