ScriptGrain vs StyleMimic

ScriptGrain measures a voice on 45 named attributes and shows the difference behind every score; StyleMimic counts a handful of style features and scores drafts against your samples. Both write in a measured style; only ScriptGrain connects that voice to Claude, ChatGPT and other tools through an API and MCP server, on every plan.

The actual difference

StyleMimic counts a handful of style features in the browser and scores drafts against your samples. ScriptGrain measures 45 named attributes across eight layers, publishes its scoring method with the weights and tolerances, returns the per-feature differences with every score, and puts the API and MCP server on every plan including Free, so the same voice works inside Claude, ChatGPT and other tools. StyleMimic's site lists no API or MCP connector.

StyleMimic's free tier is generous, and its paid plans ($9 and $19 a month) are listed but marked as coming, so they cannot be bought yet. ScriptGrain's Writer plan is £12 a month with the API and MCP connector included, and the free plan measures one voice with no card.

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

ScriptGrainStyleMimic
Entry price£12/mo (Writer, 1 voice profile)$9/mo (Starter, listed as coming, not yet on sale)
Free tierYes, See your own voice profile and try one draft. No card.Free account: 5,000 written words a month (1,500 a day), up to 10 saved style profiles, no card; style scans work without an account
Voices on entry plan1 (3 on Operator, £29/mo)Up to 10 saved style profiles on Free, 25 on Starter
How the voice is built45 measured style attributes, extracted from writing you have already publishedYou paste a sample of at least 40 words (a few hundred are recommended). Sentence length, paragraph shape, punctuation habits, vocabulary range and typical openers are counted in your browser; a short AI pass (Google's Gemini models, per its FAQ) describes the qualitative side when the profile is saved. Every draft carries a style-match score checked against your own samples.

StyleMimic figures read from their pricing page on 28 September 2026.

Where StyleMimic is stronger

An AI writing tool that reads a writing style from a short sample (40 words minimum) and writes posts, emails, comments, newsletters and articles in it, for individual writers, ghostwriters with several clients and brands that want one voice across writers. This page is about stylemimic.com, not the ChatGPT GPTs with similar names.

If you want to write a lot for free today, StyleMimic's free tier gives far more words than ScriptGrain's, which includes one free draft, and it needs only a short sample. ScriptGrain asks for more of your writing up front, about 3,000 words for the sharpest read, because it measures more.

Questions

Is ScriptGrain better than StyleMimic?

They solve the problem differently. StyleMimic counts a handful of style features in the browser and scores drafts against your samples. ScriptGrain measures 45 named attributes across eight layers, publishes its scoring method with the weights and tolerances, returns the per-feature differences with every score, and puts the API and MCP server on every plan including Free, so the same voice works inside Claude, ChatGPT and other tools. StyleMimic's site lists no API or MCP connector. If you want to write a lot for free today, StyleMimic's free tier gives far more words than ScriptGrain's, which includes one free draft, and it needs only a short sample. ScriptGrain asks for more of your writing up front, about 3,000 words for the sharpest read, because it measures more.

How much does StyleMimic cost compared with ScriptGrain?

StyleMimic's entry plan is $9/mo (Starter, listed as coming, not yet on sale) (Yearly billing listed at 30% less than monthly. Pro $19/mo, also listed as coming), with this free tier: Free account: 5,000 written words a month (1,500 a day), up to 10 saved style profiles, no card; style scans work without an account. ScriptGrain starts at £12/month (Writer, 1 voice profile) with a free plan: See your own voice profile and try one draft. No card. StyleMimic figures read from their pricing page on 28 September 2026.

Does StyleMimic learn my writing voice?

You paste a sample of at least 40 words (a few hundred are recommended). Sentence length, paragraph shape, punctuation habits, vocabulary range and typical openers are counted in your browser; a short AI pass (Google's Gemini models, per its FAQ) describes the qualitative side when the profile is saved. Every draft carries a style-match score checked against your own samples. ScriptGrain instead measures 45 style attributes from writing you have already published, and scores every draft against that measured profile.

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