{"data":{"slug":"grammarly","name":"Grammarly","vendor":"Superhuman (formerly Grammarly, Inc.)","category":"writing","summary":"A writing assistant that checks grammar, spelling and tone wherever you type, with AI rewriting and generation.","website":"https://www.grammarly.com","pricing":{"model":"freemium","freeTier":true,"pricingUrl":"https://www.grammarly.com/plans","notes":"A 7-day Pro trial is offered. Pro is priced per member. Which AI agents (Citation Finder, AI Grader, Reader Reactions) are included in which plan is not stated on the plans page.","plans":[{"id":"free","name":"Free","price":{"amount":0,"currency":"USD","period":"month","unit":"seat","billedAnnually":false},"monthlyUSD":0,"monthlyCostForSeatsUSD":0,"highlights":["Core spelling and grammar","Tone detection","100 AI prompts per month"],"evidence":{"status":"verified","sources":[{"url":"https://www.grammarly.com/plans","title":"Grammarly plans","accessedAt":"2026-10-13","note":"Monthly, quarterly and annual Pro prices read from the page's plan data."}],"verifiedAt":"2026-10-13","verifiedBy":"agent:claude-research"}},{"id":"pro","name":"Pro","price":{"amount":12,"currency":"USD","period":"month","unit":"seat","billedAnnually":true,"note":"$144 billed annually ($12/month). Monthly billing is $30; quarterly is $60."},"monthlyUSD":12,"monthlyCostForSeatsUSD":12,"highlights":["2,000 AI prompts per member per month","Full-sentence rewrites and tone adjustment","Plagiarism and AI-text detection","1 style guide and 1 brand tone","Snippets and team analytics"],"evidence":{"status":"verified","sources":[{"url":"https://www.grammarly.com/plans","title":"Grammarly plans","accessedAt":"2026-10-13","note":"Monthly, quarterly and annual Pro prices read from the page's plan data."}],"verifiedAt":"2026-10-13","verifiedBy":"agent:claude-research"}},{"id":"enterprise","name":"Enterprise","price":{"amount":null,"currency":"USD","period":"month","unit":"seat","billedAnnually":false,"note":"Contact sales; available through Superhuman Go."},"monthlyUSD":null,"monthlyCostForSeatsUSD":null,"highlights":["Unlimited AI prompts","Unlimited style guides and brand tones","SAML SSO and SCIM","Data loss prevention and BYOK encryption"],"evidence":{"status":"verified","sources":[{"url":"https://www.grammarly.com/plans","title":"Grammarly plans","accessedAt":"2026-10-13","note":"Monthly, quarterly and annual Pro prices read from the page's plan data."}],"verifiedAt":"2026-10-13","verifiedBy":"agent:claude-research"}}]},"capabilities":[{"capability":"grammar-editing","capabilityName":"Proofread and improve writing","fit":"native","availableOnPlans":"all","scores":{"quality":5,"ease":5,"precision":4,"batch":3,"collaboration":3,"brandConsistency":4,"reliability":4,"privacy":3},"skill":"none","notes":"Core spelling and grammar free; rewrites, tone and fluency on Pro.","limitations":["Free plan lacks full-sentence rewrites and tone adjustment","Suggestions can flatten a distinctive voice"],"evidence":{"status":"editorial","sources":[{"url":"https://www.grammarly.com/plans","title":"Grammarly plans","accessedAt":"2026-10-13","note":"Monthly, quarterly and annual Pro prices read from the page's plan data."}],"notes":"Feature existence checked on the cited vendor page; scores are editorial judgement."}},{"capability":"writing-copy","capabilityName":"Write marketing and business copy","fit":"partial","availableOnPlans":"all","scores":{"quality":3,"ease":5,"precision":3,"brandConsistency":3,"reliability":3},"skill":"none","notes":"AI generation and rewriting inside the editor and extension.","limitations":["Free plan capped at 100 AI prompts per month","Better at editing than long-form drafting"],"evidence":{"status":"editorial","sources":[{"url":"https://www.grammarly.com/plans","title":"Grammarly plans","accessedAt":"2026-10-13","note":"Monthly, quarterly and annual Pro prices read from the page's plan data."}],"notes":"Feature existence checked on the cited vendor page; scores are editorial judgement."}},{"capability":"ai-chat-assistant","capabilityName":"General-purpose AI assistant","fit":"partial","availableOnPlans":"all","scores":{"quality":3,"ease":5,"reliability":3,"privacy":3},"skill":"none","notes":"Prompt-based AI help wherever you type.","limitations":["Narrower than general AI chat tools","Prompt caps on Free and Pro"],"evidence":{"status":"editorial","sources":[{"url":"https://www.grammarly.com/plans","title":"Grammarly plans","accessedAt":"2026-10-13","note":"Monthly, quarterly and annual Pro prices read from the page's plan data."}],"notes":"Editorial judgement: prompt-based AI help is available inline, but it is not a general-purpose chat assistant."}},{"capability":"web-research","capabilityName":"Research a topic on the web with citations","fit":"workaround","availableOnPlans":"all","scores":{"quality":2,"ease":4,"reliability":3},"skill":"none","notes":"Citation Finder can suggest sources for claims in your writing.","limitations":["Not a full research tool","Plan availability unconfirmed"],"evidence":{"status":"unverified","sources":[{"url":"https://www.grammarly.com/plans","title":"Grammarly plans","accessedAt":"2026-10-13","note":"Monthly, quarterly and annual Pro prices read from the page's plan data."}],"notes":"Citation Finder agent is linked from the plans page, but which plans include it was not stated."}}],"lastReviewed":"2026-10-13","links":{"page":"/tools/grammarly","replaceGuide":"/replace/grammarly","api":"/api/v1/tools/grammarly","markdown":"/tools/grammarly.md"},"aliases":["Grammarly Pro","Grammarly Premium","Grammarly Business"],"tags":["grammar","spelling","tone","ai-writing","browser-extension","style-guide"],"description":"Grammarly runs as a browser extension, desktop app and add-in, so it checks writing across email, docs and web apps. The Free plan covers core spelling and grammar plus 100 AI prompts a month. Pro adds full-sentence rewrites, tone adjustment, plagiarism and AI-text detection, one style guide and one brand tone, and 2,000 AI prompts per member per month. The company now operates under the Superhuman name, and Enterprise is sold through Superhuman Go.","whyPeoplePay":["Inline grammar and clarity fixes in almost every app and website","Full-sentence rewrites and tone adjustment","Plagiarism and AI-generated text detection","Style guides and brand tones for consistent team writing","Fluency help for non-native English writers"],"hardToReplace":["Works in nearly every text field without copy-pasting into a chatbot","Team style guides and snippets enforce consistent wording","Plagiarism checks against a large web and publication index"],"dataPortability":{"rating":"easy","notes":"Your writing stays in the apps you use. Style guides, snippets and brand tones would need to be recreated elsewhere."},"risks":[{"type":"sensitive_data","severity":"medium","note":"The extension reads text in many apps; review which sites it is enabled on for confidential work."},{"type":"compliance","severity":"low","note":"SSO, SCIM, DLP and BYOK are Enterprise only."}],"replacementWorkflows":[{"slug":"drop-grammarly-with-existing-ai","title":"Drop Grammarly when you already pay for ChatGPT, Claude, Gemini or Copilot","page":"/workflows/drop-grammarly-with-existing-ai","api":"/api/v1/workflows/drop-grammarly-with-existing-ai"}],"workflowsUsingThisTool":[],"overlapsWith":[{"tool":"chatgpt","name":"ChatGPT","sharedCapabilities":["ai-chat-assistant","writing-copy","grammar-editing","web-research"]},{"tool":"claude","name":"Claude","sharedCapabilities":["ai-chat-assistant","writing-copy","grammar-editing","web-research"]},{"tool":"gemini","name":"Google Gemini","sharedCapabilities":["ai-chat-assistant","writing-copy","grammar-editing","web-research"]},{"tool":"microsoft-365-copilot","name":"Microsoft 365 Copilot","sharedCapabilities":["ai-chat-assistant","writing-copy","grammar-editing","web-research"]},{"tool":"google-workspace","name":"Google Workspace","sharedCapabilities":["ai-chat-assistant","writing-copy","grammar-editing"]},{"tool":"grok","name":"Grok","sharedCapabilities":["ai-chat-assistant","web-research","writing-copy"]},{"tool":"jasper","name":"Jasper","sharedCapabilities":["writing-copy","ai-chat-assistant","web-research"]},{"tool":"microsoft-365","name":"Microsoft 365","sharedCapabilities":["ai-chat-assistant","writing-copy","grammar-editing"]},{"tool":"perplexity","name":"Perplexity","sharedCapabilities":["web-research","ai-chat-assistant","writing-copy"]},{"tool":"notion","name":"Notion","sharedCapabilities":["ai-chat-assistant","writing-copy"]}],"sources":[{"url":"https://www.grammarly.com/plans","title":"Grammarly plans","accessedAt":"2026-10-13","note":"Monthly, quarterly and annual Pro prices read from the page's plan data."}]},"meta":{"apiVersion":"v1","dataVersion":"b50ff0897461","dataGeneratedAt":"2026-10-13T15:03:29.611Z","docs":"/docs/api","evidenceLegend":"/docs/data-model#evidence","disclaimer":"Prices and capabilities change. Check each item's evidence status and verification date. Savings are estimates, not guarantees."}}