Model Picker: model and effort advisor for claude.ai

Model Picker suggests which model and which effort level fit the prompt you are drafting on Claude AI, before you send it. Every suggestion carries one plain sentence explaining why, so you spend your subscription on purpose instead of guessing. What it does: • Names the model and the effort level as two separate decisions, because they are. A writing task often wants a capable model at low effort, while a problem with many steps wants more effort rather than a bigger model. • Explains every suggestion in one plain sentence, so you learn the lineup instead of memorizing it. • Respects your plan. The badge only recommends models your plan includes, and tells you when a stronger one would have suited the task but is not available to you. • Warns you before an expensive read. Long prompts, long conversations, and heavier models earn a quota note in plain words, with the reason it applies. • Stays out of your way. Drag the badge anywhere and it remembers the spot, pin it or mute it for one conversation, shrink it to a compact pill, or let it fade while you read. • Knows the current lineup: Fable 5.1, Opus 5.5, Sonnet 5 and Haiku 4.5. Keeps the prompts you want to use again. Save a prompt from the badge while it is in front of you, or add one on the settings page, then find it later by a word in it or by the kind of task it was, and copy it back out when you need it. Prompts you save stay in this browser on this computer as ordinary unencrypted text. Nothing is uploaded or synced, anyone who can use this computer can read them, uninstalling deletes them, and Export is your backup. Private by structure. The extension asks for one permission, storage, and contains no network code path at all: nothing you type is stored unless you save it, and nothing of yours ever leaves your browser. It is read only on the page: it never clicks, sends, or edits anything, and it adds one badge and nothing else. At install, Chrome will say the extension can read and change your data on claude.ai. That is the standard wording for any extension that runs on a site; this one only reads. Model Picker is an independent tool. It is not affiliated with, endorsed by, or sponsored by Anthropic. Claude is a trademark of Anthropic, PBC.