Only ChatGPT13
- General chat/reasoning
- file uploads
- multimodal text/image/audio/video/data
- voice/video
- Deep Research
- ChatGPT Agent
- Codex
- Projects
- GPTs
- apps/connectors
- Excel/Sheets extensions
- Business admin controls
- separate OpenAI API
VerdictPal · editorial desk · updated 16 Oct 2026VerdictPal
Compare · Head-to-head
ChatGPT vs Grammarly: pricing, privacy & capabilities
Put two dossiers side by side: fit, cost, privacy, and the failure modes that actually change the choice.
Cross-category compare
You're comparing general-purpose assistant baseline and multimodal draft critic (ChatGPT) to revision pass, tone check, and style cleanup (Grammarly) — different categories (General AI assistant vs Writing & publishing). Little overlap on modalities or tracked capabilities. The stat bars still run — use this read for budget and privacy, not feature parity.
Compare · Tool A / Tool B·Head-to-head
ChatGPTvsGrammarly
These tools sit in different sets (General AI assistant vs Writing & publishing), so picking one over the other is mostly a question of which job you're doing. ChatGPT wins on privacy controls; Grammarly wins on speed. Both pass our quality gate. The right pick is the one whose strengths match the job you're trying to do.
- ChatGPT · avg
- 66
- wins 8 of 16
- Grammarly · avg
- 63
- wins 2 of 16
- Fields differ
- 12
- of 16 dossier rows
- Receipts
- 20
- sources + bench notes
Dossier fields
Sixteen fields, side by side.
16 metrics
Sixteen numbers, one shared midline.
ChatGPTvsGrammarly
These tools sit in different sets (General AI assistant vs Writing & publishing), so picking one over the other is mostly a question of which job you're doing. ChatGPT wins on privacy controls; Grammarly wins on speed. Both pass our quality gate. The right pick is the one whose strengths match the job you're trying to do.
- Editorial fitChatGPT68Grammarly55
- Source qualityChatGPT55Grammarly52
- Citation honestyChatGPT52Grammarly52
- Privacy controlsChatGPT40Grammarly36
- Value for moneyChatGPT70Grammarly70
- SpeedChatGPT58Grammarly68
- IntegrationChatGPT80Grammarly64
- OnboardingChatGPT58Grammarly68
- ReliabilityChatGPT70Grammarly70
- Feature depthChatGPT100Grammarly100
- Data portabilityChatGPT65Grammarly49
- TransparencyChatGPT98Grammarly100
- Ecosystem reachChatGPT80Grammarly64
- DocumentationChatGPT55Grammarly52
- IndependenceChatGPT40Grammarly36
- AffordabilityChatGPT71Grammarly71
ChatGPT · avg 66 · wins 8 of 160avg 63 · wins 2 of 16 · Grammarly
- 01Editorial fit6855
- 02Source quality5552
- 03Citation honesty5252
- 04Privacy controls4036
- 05Value for money7070
- 06Speed5868
- 07Integration8064
- 08Onboarding5868
- 09Reliability7070
- 10Feature depth100100
- 11Data portability6549
- 12Transparency98100
- 13Ecosystem reach8064
- 14Documentation5552
- 15Independence4036
- 16Affordability7171
TOOL A · ChatGPT
General AI assistant
ChatGPT
68/100
ROLEGeneral-purpose assistant baseline and multimodal draft critic
Editorial fit
68
Source quality
55
Citation honesty
52
Privacy controls
40
Value for money
70
Speed
58
FREE
$8/MOGo
$20/MOPlus
General-purpose assistant baseline and multimodal draft critic — OpenAI’s general-purpose assistant for drafting, analysis, multimodal exploration, file work, coding, agents, and baseline AI comparison, with separate consumer, Business/Enterprise, and API trust boundaries.
TOOL B · Grammarly
Writing & publishing
Grammarly
55/100
ROLERevision pass, tone check, and style cleanup
Editorial fit
55
Source quality
52
Citation honesty
52
Privacy controls
36
Value for money
70
Speed
68
FREE
$30/MOper seat
$20/MOper seat
Revision pass, tone check, and style cleanup — Cloud writing assistant for grammar, tone, rewrites, style guides, brand tone, AI prompts, plagiarism checks, and inline editing across browser, desktop, mobile, and workplace apps.
Privacy facets
Where each tool is actually private.
ChatGPTGrammarly
Training on your dataPartialPartial: OpenAI may use your content from ChatGPT Free, Go, Plus and Pro to train its models by default. To opt out, turn off “Improve the model for everyone” in Settings > Data controls, or select “Do not train on my content” in OpenAI's Privacy Portal. ChatGPT Business, Enterprise, Edu and the API do not use inputs or outputs for training by default. If you send feedback, the entire conversation linked to it may still be used for training. Source: OpenAI, Data use for model training (linked in Sources)UnknownUnknown: Not recorded as a plan-wide guarantee. Check the dossier's privacy notes and sources.
EU data residencyUnknownUnknown: Not recorded as a plan-wide guarantee. Check the dossier's privacy notes and sources.UnknownUnknown: Not recorded as a plan-wide guarantee. Check the dossier's privacy notes and sources.
SOC 2 attestationUnknownUnknown: Not recorded as a plan-wide guarantee. Check the dossier's privacy notes and sources.UnknownUnknown: Not recorded as a plan-wide guarantee. Check the dossier's privacy notes and sources.
Local-first by defaultUnknownUnknown: Not recorded as a plan-wide guarantee. Check the dossier's privacy notes and sources.UnknownUnknown: Not recorded as a plan-wide guarantee. Check the dossier's privacy notes and sources.
Capability split
What each tool does uniquely.
Shared0
No overlap detected.
Only Grammarly17
- Grammar/spelling
- tone detection/adjustment
- full-sentence rewrites
- Free 100 AI prompts
- Pro 2,000 AI prompts
- plagiarism detection
- style guides
- brand tones
- knowledge share
- snippets
- usage analytics
- Pro 1–149 seats
- Enterprise confidential mode
- DLP
- domain/app/client controls
- MFA/custom security controls
- Superhuman Go org controls
Failure modes
Where each tool breaks.
ChatGPT
- Breadth can hide weak methodology
- Consumer content can train models unless controls are changed
- Business admins may access workspace content
- Subscription and API economics are separate
- Usage caps/guardrails/flexible pricing can interrupt workflows
- Citations and browsing need independent verification
Grammarly
- Suggestions can flatten disciplinary voice
- Cloud processing sends draft text to Grammarly/Superhuman systems
- Sensitive-field exclusion is best-effort, not a guarantee
- Enterprise confidential mode only covers supported surfaces/workflows
- Plagiarism/AI signals are not institutional proof
- Generative rewrites can alter meaning/citations/hedges
Pricing
Pulled straight from each dossier.
ChatGPT
General AI assistant- FREE
- $8/MOGo
- $20/MOPlus
raw · Free $0 · Go $8/mo (US; ads may apply) · Plus $20/mo · Pro $100/mo · Pro $200/mo (new $200 sign-ups paused as of 2026-09-10) · Business Standard $25/user/mo monthly or $20 annual (2-seat min) · Business Premium $125/$100 annual · Enterprise custom · OpenAI API separate per-token pricing.
Grammarly
Writing & publishing- FREE
- $30/MOper seat
- $20/MOper seat
raw · Free: USD 0 with 100 AI prompts · Pro annual: USD 12/member/mo billed annually or USD 144/year · Pro quarterly: USD 60/member/3 months · Pro monthly: USD 30/member/mo · Pro supports 1–149 seats · larger organizations route through Superhuman Go/enterprise-style controls.
Verdict
Which tool to actually pick.
These tools sit in different sets (General AI assistant vs Writing & publishing), so picking one over the other is mostly a question of which job you're doing. ChatGPT wins on privacy controls; Grammarly wins on speed. Both pass our quality gate. The right pick is the one whose strengths match the job you're trying to do.
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Questions this comparison answers
Every answer below is assembled from the dated fields on this page. Nothing is written separately for search.
Should you use ChatGPT or Grammarly?
These tools sit in different sets (General AI assistant vs Writing & publishing), so picking one over the other is mostly a question of which job you're doing. ChatGPT wins on privacy controls; Grammarly wins on speed. Both pass our quality gate. The right pick is the one whose strengths match the job you're trying to do.
What can ChatGPT do that Grammarly cannot?
Capabilities documented on the ChatGPT tool but not the Grammarly tool:
- General chat/reasoning
- file uploads
- multimodal text/image/audio/video/data
- voice/video
- Deep Research
- ChatGPT Agent
- Codex
- Projects
- GPTs
- apps/connectors
- Excel/Sheets extensions
- Business admin controls
- separate OpenAI API
What can Grammarly do that ChatGPT cannot?
Capabilities documented on the Grammarly tool but not the ChatGPT tool:
- Grammar/spelling
- tone detection/adjustment
- full-sentence rewrites
- Free 100 AI prompts
- Pro 2,000 AI prompts
- plagiarism detection
- style guides
- brand tones
- knowledge share
- snippets
- usage analytics
- Pro 1–149 seats
- Enterprise confidential mode
- DLP
- domain/app/client controls
- MFA/custom security controls
- Superhuman Go org controls
Is ChatGPT or Grammarly cheaper?
ChatGPT: Free Free · Go $8/mo · Plus $20/mo · Pro $100/mo · Pro $200 $200/mo · Business Standard $25/mo · Business Premium $125/mo · Enterprise Custom. Grammarly: Free Free · Pro (monthly) $30/mo · Pro (quarterly) $20/mo · Pro (annual) $12/mo · Enterprise Custom.
How do ChatGPT and Grammarly score against each other?
On editorial fit, ChatGPT scores 68 out of 100 and Grammarly scores 55 out of 100. The score is a fit judgement for source-heavy research work, not a quality ranking — read both dossiers before you pick.