ScriptGrain vs Claude

ScriptGrain makes Claude better at being you. Projects and Styles apply what you can describe and paste. ScriptGrain measures your voice as 45 attributes from writing you have already published, connects to Claude over MCP so it writes from that profile, and scores every draft against the measurement.

The actual difference

A Project holds what you can say about your voice and the samples you paste; most of a voice is what you cannot say. ScriptGrain measures 45 attributes from your published writing, connects to Claude over MCP so Claude writes from the measured profile, and scores every draft against it. In SGR-002 a one-page measured prompt got GPT-5 to 0.62 against the author and the profile got to 0.83. It is not a rival to Claude; it is the measurement Claude does not have.

Projects cost nothing on any Claude plan, and Pro at $20 a month buys a better model and more usage rather than a better memory of your voice. ScriptGrain's free plan measures your voice with no card and the connector is on every plan; paid plans from £12 a month add generation, polishing and the monthly monitor.

ScriptGrain is not a replacement for the assistant you already use. It measures your voice from writing you have published and hands that profile to ChatGPT, Claude, Muse or any MCP client through its connector, then scores every draft against it. ScriptGrain makes your AI better at being you.

Connect ScriptGrain to Claude

Every AI voice tool compared: prices, scores and API access, checked

	ScriptGrain	Claude
Entry price	£12/mo (Writer, 1 voice profile)	Free (Projects are on every plan; up to 5 on Free)
Free tier	Yes, See your own voice profile. No card.	Claude's free plan includes up to 5 Projects and user preferences
Voices on entry plan	1 (3 on Operator, £29/mo)	A Project's instructions and knowledge files, plus a Style set from samples
How the voice is built	45 measured style attributes, extracted from writing you have already published	You write instructions and upload files into a Project, or create a Style from writing samples, and Claude applies them to each response. It is a description plus examples, read fresh each time, with no score on the result and no record of the habits you cannot articulate.

Claude figures read from their pricing page on 20 September 2026.

Where Claude is stronger

The assistant many writers already draft in. Projects hold instructions and knowledge files; Styles let you set a writing style from samples. Both apply what you give them; neither measures you.

A full assistant for research, code, documents and drafting in one place
Projects and Styles are free to set up and take minutes
Claude Code and claude.ai both connect to MCP servers, which is how ScriptGrain plugs in

If you want one assistant for research, code, documents and quick drafts, Claude is that product, and for replies where voice does not matter a Project is plenty. Keep Claude; give it your measured voice.

Questions

Is ScriptGrain better than Claude?

They solve the problem differently. A Project holds what you can say about your voice and the samples you paste; most of a voice is what you cannot say. ScriptGrain measures 45 attributes from your published writing, connects to Claude over MCP so Claude writes from the measured profile, and scores every draft against it. In SGR-002 a one-page measured prompt got GPT-5 to 0.62 against the author and the profile got to 0.83. It is not a rival to Claude; it is the measurement Claude does not have. If you want one assistant for research, code, documents and quick drafts, Claude is that product, and for replies where voice does not matter a Project is plenty. Keep Claude; give it your measured voice.

How much does Claude cost compared with ScriptGrain?

Claude's entry plan is Free (Projects are on every plan; up to 5 on Free) (Pro $20/mo or $17/mo billed annually; Max from $100/mo; Team $25 a seat/mo), with this free tier: Claude's free plan includes up to 5 Projects and user preferences. ScriptGrain starts at £12/month (Writer, 1 voice profile) with a free plan: See your own voice profile. No card. Claude figures read from their pricing page on 20 September 2026.

Does Claude learn my writing voice?

You write instructions and upload files into a Project, or create a Style from writing samples, and Claude applies them to each response. It is a description plus examples, read fresh each time, with no score on the result and no record of the habits you cannot articulate. ScriptGrain instead measures 45 style attributes from writing you have already published, and scores every draft against that measured profile.