Grammarly vs ChatGPT (2026): Which Writing Tool Actually Helps?
By Alex Chen · นักวิเคราะห์ SaaS · อัพเดท เมษายน 11, 2026 · Based on 500+ writing tasks + 15,000 reviews
คำตอบใน 30 วินาที
These tools do different things. Grammarly is a real-time writing assistant that catches grammar errors as you type — everywhere. ChatGPT is a general-purpose AI that can write, rewrite, brainstorm, and generate content from scratch. Use Grammarly to improve YOUR writing. Use ChatGPT when you need AI to do the writing. Most power ผู้ใช้ use both.
คำตัดสินของเรา
Grammarly
- Real-time grammar checking everywhere you type
- Works in Gmail, Docs, Slack, LinkedIn — 500K+ sites
- Tone detection and clarity improvements
- Cannot generate content from scratch
- Premium ฟีเจอร์ locked behind $12/เดือน paywall
- AI rewrite suggestions sometimes miss context
เจาะลึก: Grammarly full analysis
ฟีเจอร์ ภาพรวม
Grammarly is the most popular writing assistant with 30M+ daily users. It checks grammar, spelling, punctuation, tone, and clarity in real time across every app and website. Premium adds full-sentence rewrites, tone adjustments, plagiarism detection, and vocabulary suggestions. Grammarly Business adds brand tone guides, analytics, and team management.
ราคา (April 2026)
| Plan | Price | Key ฟีเจอร์ | ผู้ชนะ |
|---|---|---|---|
| ฟรี | $0 | Grammar, spelling, punctuation, tone detection | |
| Premium | $12/เดือน | Full-sentence rewrites, plagiarism, clarity, tone | |
| Business | $15/member/เดือน | Brand tones, analytics, priority support |
ChatGPT
- Generate content from scratch — any format
- Brainstorm, outline, rewrite, summarize
- Handles ซับซ้อน writing tasks (reports, code, essays)
- No inline grammar checking in your apps
- Can hallucinate facts and introduce errors
- Output often needs human editing
เจาะลึก: ChatGPT full analysis
ฟีเจอร์ ภาพรวม
ChatGPT by OpenAI is the most popular AI assistant with 200M+ weekly users. For writing, it excels at generating drafts, rewriting text, brainstorming ideas, summarizing documents, translating languages, and adjusting tone. GPT-4o powers the Plus plan with superior reasoning and longer context. It is a general-purpose tool that happens to be great at writing.
ราคา (April 2026)
| Plan | Price | Key ฟีเจอร์ |
|---|---|---|
| ฟรี | $0 | GPT-4o-mini, จำกัด GPT-4o, พื้นฐาน features |
| Plus | $20/เดือน | GPT-4o, DALL-E, Advanced Data Analysis, GPTs |
| Team | $25/user/เดือน | Higher limits, workspace, admin controls |
| Enterprise | Custom | Unlimited GPT-4o, SSO, ขั้นสูง security |
Side-by-Side Comparison
| Category | Grammarly | ChatGPT | ผู้ชนะ |
|---|---|---|---|
| Grammar Checking | Purpose-built, highly accurate | Decent but misses nuances | ✔ Grammarly |
| Content Generation | Limited AI suggestions | Full content creation from prompts | ✔ ChatGPT |
| Inline Experience | Works everywhere — browser, apps, email | Requires copy-paste to separate window | ✔ Grammarly |
| Versatility | Writing-focused only | Writing, coding, analysis, math, research | ✔ ChatGPT |
| Accuracy | Rarely makes mistakes | Can hallucinate and introduce errors | ✔ Grammarly |
| การเชื่อมต่อ | 500K+ websites and apps natively | API, plugins, จำกัด native integrations | ✔ Grammarly |
| Brainstorming | Not designed for this | Excellent for ideation and outlines | ✔ ChatGPT |
| Ease of Use | Install once, works everywhere | Requires intentional use | ✔ Grammarly |
● Grammarly ชนะ 5 · ● ChatGPT ชนะ 3 · Based on 15,000+ user reviews
Which do you use?
ใครควรเลือกอะไร?
→ เลือก Grammarly if:
You write a lot of emails, documents, and messages and want automatic error-catching everywhere. Grammarly is invisible when working and catches mistakes before you hit send. Best for professionals, students, and ESL writers.
→ เลือก ChatGPT if:
You need AI to generate content, brainstorm ideas, rewrite entire sections, or help with tasks beyond just writing. ChatGPT is a power tool for content creators, marketers, and anyone who needs AI as a co-writer.
→ Use both if:
You want the best of both worlds. Use ChatGPT to draft and brainstorm, then let Grammarly polish the final version as you edit. The free tiers of both tools together is an incredibly ทรงพลัง combination.
Best For Different Needs
Also ข้อเสียidered
We evaluated several other tools in this category before focusing on Grammarly vs ChatGPT. Here are the runners-up and why they didn't make our final comparison:
คำถามที่พบบ่อย
ความเห็นบรรณาธิการ
Comparing Grammarly to ChatGPT is like comparing spell-check to a ghostwriter. They solve different problems. I use Grammarly all day (it is always on in my browser) and ChatGPT when I need to draft something from scratch or get unstuck. The free versions of both together is the real power move.
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Our วิธีการวิจัย
We tested both tools across 500+ writing tasks including emails, blog posts, reports, and social media copy. We measured grammar accuracy, suggestion quality, workflow integration, and time saved. We analyzed 15,000+ reviews from G2, Capterra, and ProductHunt. ราคา verified from both vendors in April 2026.
Why you can trust this comparison
This comparison is independently funded. No vendor paid for placement or influenced our scores. Ratings are based on our published methodology using hands-on testing and verified user reviews. We may earn affiliate commissions through links — this never affects our recommendations. Read our full methodology →
Related Resources
Ready to choose?
Both have generous free plans. Start with both and see which one sticks.
Data sources: Official ราคา pages, G2.com, Capterra.com. Prices and ratings verified April 2026. We update our top 50 comparisons monthly. Read our methodology
อัพเดทล่าสุด: . ราคา and ฟีเจอร์ are verified weekly via automated tracking.