Grammarly vs GPT-5.2
A detailed comparison to help you choose the right AI tool for your needs.
Our Pick
GPT-5.2 Instant
GPT-5.2 Instant edges out Grammarly with superior overall performance and features that make it the better choice for most users.
Try GPT-5.2Feature Comparison
Feature
Grammarly
GPT-5.2
Ratings
Overall Rating
4.6
4.8
Coding
-
4.6
Writing
4.8
4.8
Reasoning
4.0
4.7
Speed
5.0
4.9
Value
4.5
4.7
Pricing
Monthly Price
$12
$20
Free Tier
Input (per 1M tokens)
-
$2.5
Output (per 1M tokens)
-
$10
Features
Context Window
50K
128K
Vision/Images
Audio
Video
Code Generation
AI Agents
Grammarly
Pros
- Works everywhere (browser, desktop, mobile)
- Excellent grammar and spelling
- Tone detection
- Plagiarism checker
- GrammarlyGO AI assistant
Cons
- Not for creative writing
- Premium features require subscription
- Can be overly corrective
GPT-5.2 Instant
Pros
- Newest OpenAI model (Dec 2025)
- Fast responses optimized for speed
- 30% fewer hallucinations than GPT-5.1
- Knowledge cutoff August 2025
- Better at spreadsheets and presentations
- Matches human experts on professional tasks
Cons
- Not as strong as Thinking variant for complex tasks
- Requires paid subscription for full access
- Coding not as strong as Claude Opus 4.5
Choose Grammarly if you need:
Grammar checking, professional emails, academic writing
Choose GPT-5.2 if you need:
Daily tasks, writing, translation, quick coding help
Ready to get started?
Both tools offer free tiers or trials. Try them out and see which one works best for your workflow.