Write, don't just correct
Generate the whole draft with Claude or GPT-5 — then polish if needed.
The Grammarly Premium alternative that does more
Krater is the Grammarly alternative with full AI writing — not just grammar correction.
Grammarly Premium comparison
Grammarly corrects your writing. Krater writes for you — using GPT-5, Claude Opus and 348 more models — plus generates images, video and voice. Different category, much more capable.
Krater pricing · AI model directory · AI image generator · HIX.AI alternative
| Category | Grammarly Premium | Krater |
|---|---|---|
| Core function | Grammar + style correction | Full AI writing + creation |
| AI models | In-house writing assistant | 350+ models (GPT-5, Claude) |
| Image generation | None | Flux, Midjourney, Imagen |
| Video generation | None | Sora, Veo, Kling, Runway |
| Browser integration | Yes (extension) | Web/mobile app primary |
| Pricing | $12-30/mo · correction | From $20/mo · creation |
Highlights
Beyond text
Image, video, voice — Grammarly only touches text.
Creation, not just correction
Pro at $20/month gives you 350+ models for writing and creating — Grammarly Premium ($12-30/month) only corrects.
Frequently asked questions
Can Krater check grammar?
Yes — paste your text into any chat model and ask it to proofread. Claude Opus and GPT-5 do this brilliantly.
Is Krater a Grammarly replacement?
For most writing needs, yes — but Krater is a different category. Grammarly is a browser-integrated correction layer. Krater is a creation workspace. Many users use both.
Does Krater have a browser extension?
Krater's primary surface is the standalone app. A browser companion is on the roadmap.
Pricing?
Krater Pro is $20/month with 1,500 credits across all 350+ models. Grammarly Premium is $12-30/month for correction only.