Torn between Grammarly and ChatGPT ? These two tools are among the most popular in leur catégorie, and the choice between them depends on your specific needs, your budget and your technical requirements. In this comparison, we analyse both solutions across 6 key criteria scored out of 10 for an objective and transparent comparison.
On the output quality criterion, ChatGPT takes the lead (9.8/10 vs 9.4/10 for Grammarly). A factor to consider if this criterion is a priority in your choice.
On the price criterion, Grammarly and ChatGPT are neck and neck (8.0/10 each). The difference will come down to other criteria depending on your use case.
On the ease of use criterion, ChatGPT takes the lead (9.8/10 vs 9.5/10 for Grammarly). A factor to consider if this criterion is a priority in your choice.
On the integrations criterion, Grammarly and ChatGPT are neck and neck (5.0/10 each). The difference will come down to other criteria depending on your use case.
On the french language support criterion, ChatGPT takes the lead (9.0/10 vs 4.0/10 for Grammarly). A factor to consider if this criterion is a priority in your choice.
On the accessibility criterion, Grammarly and ChatGPT are neck and neck (8.0/10 each). The difference will come down to other criteria depending on your use case.
Grammarly
Assistant d'écriture alimenté par l'IA qui corrige grammaire, orthographe et style en temps réel sur toutes vos plateformes préférées.
ChatGPT
Assistant conversationnel polyvalent d’OpenAI. Rédige, résume, code, traduit et répond à tout type de question.
ChatGPT prend l’avantage(+1.0 pts)
ChatGPT slightly outperforms Grammarly with an average score of 8.3/10 versus 7.3/10 in the IA category. Grammarly remains a solid alternative depending on your priority criteria. Check the detailed scores above to identify each tool’s strengths.
In brief
Torn between Grammarly and ChatGPT? Both tools are among the most popular in the Writing category, and the choice between them depends on your specific needs, your budget and your technical requirements. In this comparison, we analyse both solutions across six key criteria scored out of 10 for an objective, transparent comparison.
Score by criterion
Average score
Summary table
| Criterion | Grammarly | ChatGPT | Winner |
|---|---|---|---|
| Output quality | 9.4/10 | 9.8/10 | ChatGPT |
| Price | 8.5/10 | 8.0/10 | Grammarly |
| Ease of use | 9.7/10 | 9.8/10 | ChatGPT |
| Integrations | 9.0/10 | 9.0/10 | Tie |
| French language support | 6.5/10 | 9.0/10 | ChatGPT |
| Accessibility | 9.0/10 | 9.0/10 | Tie |
| Average score | 8.7/10 | 9.1/10 | ChatGPT |
Detailed analysis
Output quality
On the output quality criterion, ChatGPT comes out ahead (9.8/10 vs 9.4/10 for Grammarly). A factor to weigh if this criterion is a priority in your decision.
Price
On the price criterion, Grammarly comes out ahead (8.5/10 vs 8.0/10 for ChatGPT). A factor to weigh if this criterion is a priority in your decision.
Ease of use
On the ease of use criterion, ChatGPT comes out ahead (9.8/10 vs 9.7/10 for Grammarly). A factor to weigh if this criterion is a priority in your decision.
Integrations
On the integrations criterion, Grammarly and ChatGPT are neck and neck (9.0/10 each). The difference will come down to other criteria depending on your use case.
French language support
On the French language support criterion, ChatGPT comes out ahead (9.0/10 vs 6.5/10 for Grammarly). A factor to weigh if this criterion is a priority in your decision.
Accessibility
On the accessibility criterion, Grammarly and ChatGPT are neck and neck (9.0/10 each). The difference will come down to other criteria depending on your use case.
Tool overview
Grammarly
An AI-powered writing assistant that corrects grammar, spelling and style in real time across all your favourite platforms.
- Price
- Freemium – From $12/month
- Starting from
- 12 USD/month
- Free trial
- Yes
- French
- No
- API
- No
Strengths
- Real-time grammar and style corrections
- Tone detection and improvement suggestions
- Integrations with everyday tools (Gmail, Word, Slack)
- Built-in plagiarism checker for original content
- Simple interface accessible to everyone
Weaknesses
- English-only support (no French)
- Expensive Premium subscription for the full feature set
- Suggestions sometimes ill-suited to the specific context
- Requires a permanent Internet connection
ChatGPT
ChatGPT: a conversational AI assistant for students, researchers and beyond.
- Price
- Free / From $20/month
- Starting from
- USD 20/month
- Free trial
- Yes
- French
- Yes
- API
- No
Strengths
- GPT-4o models among the most advanced in the world
- Built-in agents (Operator, Deep Research)
- Multimodality: text, image, voice, vision
- Custom GPTs and a dedicated store
- Free plan usable daily
Weaknesses
- Occasional hallucinations to check
- Data privacy settings need configuring
- Usage limits reached quickly on popular paid plans
- Not optimised for highly specific use cases
Who are these tools for ?
Choose Grammarly if…
- English-speaking writerslooking to perfect their writing
- Professionalswriting emails, reports and documents
- Studentspreparing essays and academic work
- Teamsneeding brand consistency and a unified style
- Non-native speakerswanting to write professional-quality English
Choose ChatGPT if…
- students and researchers
- professionals in all sectors
- developers and marketers
- teams using ChatGPT professionally
Our verdict
ChatGPT takes the lead (+0.4 pts)
ChatGPT comes out ahead of Grammarly (9.1/10 vs 8.7/10) in the Writing category. That said, Grammarly remains relevant for certain specific use cases detailed above. Try both via their free trial to confirm which one best matches your needs.
Frequently asked questions
Is Grammarly better than ChatGPT in 2026 ?
Across our six criteria, Grammarly scores 8.7/10 against 9.1/10 for ChatGPT. But the best choice depends on which criteria matter most to you — see the detailed analysis above.
Can Grammarly and ChatGPT be used together ?
Yes, some professionals combine both tools to take advantage of their respective strengths. Combined use may require manual transfers between the two interfaces.
What is the alternative to Grammarly and ChatGPT ?
The rédaction market is rich in alternatives. Check our comparisons page to discover every tool in the category, or explore our full directory of more than 400 AI tools sorted by use case and rating.
Other AI writing tool matchups that may interest you.
Also worth reading
Grammarly est-il meilleur que ChatGPT en 2026 ?
According to our Battle, ChatGPT achieves a better average score (8.3/10 versus 7.3/10). However, the best tool depends on your priorities: output quality, price, integrations, support. See the « Score by criterion » section to identify the one that matches your use case.
Peut-on utiliser Grammarly et ChatGPT ensemble ?
Oui, c’est même une stratégie courante : un outil principal pour le quotidien et l’autre en spécialiste sur des cas d’usage spécifiques. Tester gratuitement les deux est le moyen le plus fiable de trouver le bon mix pour votre workflow.
Quelle est l'alternative à Grammarly et ChatGPT ?
Several alternatives exist in cette catégorie. To explore the whole market, take a look at our full comparison and our other Battles in the same category.