# Grammarly vs Jasper: license, pricing and features compared (October 2026)

Canonical: https://theagenticweekly.com/compare/grammarly-vs-jasper · Last verified: 2026-10-26 · Published: 2026-10-25 · Author: Agentic Weekly (operated independently from Texas, US) · Evidence: Evidence: Reported for both tools. The facts in the tables were read from each vendor's own pages and the public GitHub API on 2026-10-25 (America/Chicago). The What we measured section says what we have not run yet; anything we could not confirm is marked as not captured.

**Our pick:** Pick Grammarly for anyone polishing emails and documents; pick Jasper for marketing teams needing brand control. No overall winner: we have not benchmarked them against each other. **Updated:** 2026-10-26 (America/Chicago).

> Grammarly and Jasper are both listed under Writing. Pricing model: Grammarly is "Freemium"; Jasper is "Free trial". Free tier: Grammarly: $0 per month, 100 prompts per month. Jasper: 7-day free trial. Grammarly is the better fit for: anyone polishing emails and documents. Jasper is the better fit for: marketing teams needing brand control. Facts were read from vendor and GitHub pages on Oct 25, 2026 and are Reported; what we ran ourselves is under What we measured.

## What we measured

We have not run either Grammarly or Jasper ourselves yet, so nothing on this page is Tested; it is Reported from vendor and GitHub pages. Below is what we will run, so the comparison can rest on our own results.

Table: Our own tests for Grammarly and Jasper

| Test | Grammarly | Jasper |
|---|---|---|
| Hands-on test log (install and a real task) | Not tested yet. What we will run: our writing and instruction-following tests (same prompts, blind-rated, code-checked). | Not tested yet. What we will run: our writing and instruction-following tests (same prompts, blind-rated, code-checked). |
| Writing test (same prompts, blind-rated by a separate model) | Not tested yet. The writing and instruction-following tests need API or paid access we do not have for this product. We have run them on open models only: [writing leaderboard](https://theagenticweekly.com/tests/writing-leaderboard), [instruction following](https://theagenticweekly.com/tests/instruction-following). | Not tested yet. The writing and instruction-following tests need API or paid access we do not have for this product. We have run them on open models only: [writing leaderboard](https://theagenticweekly.com/tests/writing-leaderboard), [instruction following](https://theagenticweekly.com/tests/instruction-following). |

How we test and label results: [methodology](https://theagenticweekly.com/methodology#testing-rig). All test logs: [test hub](https://theagenticweekly.com/tests).

## Grammarly vs Jasper at a glance

Grammarly and Jasper are both listed under Writing. Agentic Weekly's Jasper page names Grammarly as an alternative. Grammarly: AI writing assistant that works across apps; Free $0, Pro $12 per month, Enterprise custom. Jasper: AI platform for marketing teams with brand governance and AI visibility tracking; 7-day free trial.

Table: Grammarly and Jasper side by side (vendor pages and GitHub, 2026-10-25)

|  | Grammarly | Jasper |
|---|---|---|
| Vendor | Grammarly | Jasper |
| Listed under | Writing | Writing |
| License | Proprietary | Proprietary |
| Pricing model | Freemium | Free trial |
| Free tier | Free: $0 per month, 100 prompts per month | 7-day free trial |
| Paid plans | Pro $12 per month as listed; 2,000 prompts per member per month; Enterprise custom | Not captured |
| Platforms | Browser, desktop, and apps (per site) | Web |
| Evidence | Reported from vendor pages | Reported from vendor pages |

## How Grammarly and Jasper differ

- Pricing model: Grammarly is "Freemium"; Jasper is "Free trial".
- Free tier: Grammarly: $0 per month, 100 prompts per month. Jasper: 7-day free trial.
- Platforms as the vendors list them: Grammarly: Browser, desktop, and apps (per site). Jasper: Web.

Neither tool publishes open-source code under a standard license, so you are choosing between hosted products.

## Which should you pick?

- Pick Grammarly if: anyone polishing emails and documents. Skip it if: you want long-form AI drafting only.
- Pick Jasper if: marketing teams needing brand control. Skip it if: solo writers on a budget.

## Strengths and limits

Table: Strengths and limits as listed on each tool page

|  | Grammarly | Jasper |
|---|---|---|
| Strengths | Free tier; Works in many apps | Brand governance |
| Limits | Prompt caps by plan | Price not read |

## What we did not verify

- Grammarly: Release date (none published on the pages we read; the date shown is the day we first covered this entry).
- Jasper: Release date (none published on the pages we read; the date shown is the day we first covered this entry).
- Output quality, speed and reliability beyond the smoke tests listed under What we measured: not compared.

## FAQ

### Is Grammarly or Jasper open source?

Grammarly: Proprietary. Jasper: Proprietary. Licenses come from each project's GitHub repository or the vendor's own pages, read Oct 25, 2026; read the license text itself before redistributing or building a competing service.

### Does Grammarly or Jasper have a free plan?

Grammarly: Free: $0 per month, 100 prompts per month. Jasper: 7-day free trial. Checked Oct 25, 2026; prices and limits change, so confirm on each vendor's page.

### What is the main difference between Grammarly and Jasper?

Pricing model: Grammarly is "Freemium"; Jasper is "Free trial". Free tier: Grammarly: $0 per month, 100 prompts per month. Jasper: 7-day free trial.

## Sources

- [Grammarly](https://www.grammarly.com/) (fetched 2026-10-25)
- [Grammarly plans](https://www.grammarly.com/plans) (fetched 2026-10-25)
- [Jasper](https://www.jasper.ai/) (fetched 2026-10-25)

## Related

- [Grammarly facts and sources](https://theagenticweekly.com/tools/grammarly)
- [Jasper facts and sources](https://theagenticweekly.com/tools/jasper)
- [Alternatives to Grammarly](https://theagenticweekly.com/alternatives/grammarly)
- [Alternatives to Jasper](https://theagenticweekly.com/alternatives/jasper)
- [Writing: all tools we track](https://theagenticweekly.com/best/writing)
- [Grammarly vs ChatGPT](https://theagenticweekly.com/compare/grammarly-vs-chatgpt)
- [Grammarly vs Claude](https://theagenticweekly.com/compare/grammarly-vs-claude)
- [Notion AI vs Grammarly](https://theagenticweekly.com/compare/notion-ai-vs-grammarly)

## Changelog

- 2026-10-25: First published. Facts read from vendor pages and the GitHub API on 2026-10-25.

## How to cite

Agentic Weekly, "Grammarly vs Jasper: license, pricing and features compared (October 2026)", last updated 2026-10-26, https://theagenticweekly.com/compare/grammarly-vs-jasper