ScriptGrain vs Jasper
ScriptGrain measures your voice as 45 attributes from writing you have already published, and holds every draft to them. Jasper, the category's biggest name, asks you to teach it rules about your tone instead.
The actual difference
Jasper teaches a model rules about your tone. ScriptGrain measures 45 style attributes from writing you have already published, and constrains generation to that profile. One is a description of your voice; the other is a measurement of it.
Jasper's entry plan is $69/mo for two brand voices. ScriptGrain's Operator plan is £29/mo for three profiles, and Writer is £12/mo for one.
| ScriptGrain | Jasper | |
|---|---|---|
| Entry price | £12/mo (Writer, 1 voice profile) | $69/mo |
| Free tier | Yes, See your own voice profile. No card. | None |
| Voices on entry plan | 1 (3 on Operator, £29/mo) | 2 brand voices |
| How the voice is built | 45 measured style attributes, extracted from writing you have already published | Two parts: Memory (facts about your company and audience) and Tone & Style rules. It flags off-brand tone and suggests fixes. |
Jasper figures read from their pricing page on 30 July 2026.
Where Jasper is stronger
The category's best-known brand-voice product. "AI that sounds like you."
- Far broader product: campaigns, images, an agent layer, 30+ languages
- A Style Guide feature and visual brand guidelines, on the Business tier
- Team features and seat management built for marketing departments
If you need image generation, campaign orchestration or a marketing team's seat management, Jasper does things ScriptGrain does not.
Questions
Is ScriptGrain better than Jasper?
They solve the problem differently. Jasper teaches a model rules about your tone. ScriptGrain measures 45 style attributes from writing you have already published, and constrains generation to that profile. One is a description of your voice; the other is a measurement of it. If you need image generation, campaign orchestration or a marketing team's seat management, Jasper does things ScriptGrain does not.
How much does Jasper cost compared with ScriptGrain?
Jasper's entry plan is $69/mo ($59/mo billed annually), with no free tier. ScriptGrain starts at £12/month (Writer, 1 voice profile) with a free plan: See your own voice profile. No card. Jasper figures read from their pricing page on 30 July 2026.
Does Jasper learn my writing voice?
Two parts: Memory (facts about your company and audience) and Tone & Style rules. It flags off-brand tone and suggests fixes. ScriptGrain instead measures 45 style attributes from writing you have already published, and scores every draft against that measured profile.
