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Grammarly vs Suno

Features, pricing, ratings, and pros and cons, side by side.

Grammarly logo

Grammarly

AI writing assistant that corrects, rewrites and tone-checks your text across every app

Freemium
Visit websiteView details

Verdict

Grammarly is listed under AI Assistants and Suno under Audio & Speech AI. Suno scores higher in FinderAtlas's editorial review (8.7 vs 8.2 out of 10). Both have a free plan or trial. Only Grammarly is available on Windows, macOS and Chrome Extension and offers an API.

Best overall

Suno

  • Hobbyist music makers
  • Content creators
  • Songwriters
  • Podcasters

Choose Grammarly if

  • You want a tool built for polishing emails and documents in real time across many apps, keeping tone and style consistent across a team.
  • Works across desktop, browser, Office, Google Docs and mobile keyboards, so suggestions follow you between apps.
  • Free plan covers core grammar, spelling and tone visibility with 100 AI prompts per month.

Choose Suno if

  • You want a tool built for quick song drafts from a text prompt.
  • Creates full songs with vocals and lyrics from a short prompt or your own lyrics.
  • Free plan with 50 daily credits and access to v6-mini.
Best for beginners
Suno
Best for business
Grammarly

Features

17 features compared.

  • Citation Tools
    Grammarly
    Available
    Suno
    Not available
  • Style Guides and Brand Tones
    Grammarly
    Available
    Suno
    Not available
  • Cross-App Availability
    Grammarly
    Available
    Suno
    Not available
  • Enterprise Security Controls
    Grammarly
    Available
    Suno
    Not available
  • Grammar and Mistake Correction
    Grammarly
    Available
    Suno
    Not available
  • Tone Detection and Adjustment
    Grammarly
    Available
    Suno
    Not available
  • Full-Sentence and Paragraph Rewrites
    Grammarly
    Available
    Suno
    Not available
  • AI Detector and Humanizer
    Grammarly
    Available
    Suno
    Not available
  • Plagiarism Checker
    Grammarly
    Available
    Suno
    Not available
  • v6 models
    Grammarly
    Not available
    Suno
    Available
  • Text, lyrics and audio inputs
    Grammarly
    Not available
    Suno
    Available
  • Section editing
    Grammarly
    Not available
    Suno
    Available
  • Mashups and sampling
    Grammarly
    Not available
    Suno
    Available
  • Stem separation
    Grammarly
    Not available
    Suno
    Available
  • Suno Studio
    Grammarly
    Not available
    Suno
    Available
  • Custom models and own voice
    Grammarly
    Not available
    Suno
    Available
  • Mobile apps
    Grammarly
    Not available
    Suno
    Available

Pricing

Plans as listed by each vendor. Check their sites for current prices.

  • Pricing model
    Grammarly
    Freemium
    Suno
    Freemium
  • Free plan
    Grammarly
    Yes
    Suno
    Yes
  • Starting price
    Grammarly
    $0
    Suno
    $0
  • Plans
    Grammarly
    3 plans
    Suno
    3 plans

Grammarly plans

  • Free

    $0

    Basic writing help for individuals

    • Mistake correction
    • tone visibility
    • 100 AI prompts/month

  • Pro

    Most popular

    $30/month

    Individuals and eligible teams wanting advanced rewrites and detection

    • 2,000 AI prompts/member/month
    • tone adjustment
    • full-sentence rewrites
    • plagiarism detection
    • AI-generated text detection
    • style guide
    • brand tone
    • priority support

  • Enterprise

    Custom/custom

    Larger organizations with security and governance needs

    • Unlimited AI prompts
    • unlimited style guides and brand tones
    • SAML SSO
    • SCIM
    • audit logs API
    • data loss prevention
    • dedicated support

Suno plans

  • Free

    $0

    50 credits per day for non-commercial use

    • 50 daily credits
    • v6-mini model
    • 4 concurrent generations
    • Audio upload up to 8 minutes
    • No commercial use

  • Pro

    Most popular

    $10/month

    2,500 credits per month with commercial use; $8 per month billed annually

    • 2,500 monthly credits
    • v6 and v6-wild models
    • 20 song downloads per month
    • Up to 10 concurrent generations
    • Audio upload up to 30 minutes
    • Stem separation
    • Custom models
    • Own voice upload

  • Premier

    $30/month

    10,000 credits per month plus Suno Studio; $24 per month billed annually

    • 10,000 monthly credits
    • v6 and v6-wild models
    • 60 song downloads per month
    • Suno Studio
    • Personas
    • Advanced stem split
    • Add vocals or instruments to existing songs

Our ratings

Scored out of 10 by the Finder Atlas editorial team. Last reviewed October 2026.

Grammarly
8.2overall
Suno
8.7overall

  • Ease of Use

    Grammarly
    9.1
    Suno
    Not rated

  • Feature Depth

    Grammarly
    8.3
    Suno
    Not rated

  • Value for Money

    Grammarly
    7.3
    Suno
    Not rated

  • Performance & Speed

    Grammarly
    8.4
    Suno
    Not rated

  • Documentation & Support

    Grammarly
    8.0
    Suno
    Not rated

  • Vocal Realism & Emotion

    Grammarly
    Not rated
    Suno
    8.8

  • Musical Composition & Arrangement

    Grammarly
    Not rated
    Suno
    8.5

  • Genre Versatility

    Grammarly
    Not rated
    Suno
    9.0

  • Generation Speed

    Grammarly
    Not rated
    Suno
    8.7

  • Audio Quality (WAV Export)

    Grammarly
    Not rated
    Suno
    8.3

Scores weigh documented features, plan value, platform coverage, integrations and user feedback. A missing score means we have not rated that area yet.

Pros and cons

Grammarly

Pros

  • Works across desktop, browser, Office, Google Docs and mobile keyboards, so suggestions follow you between apps.
  • Free plan covers core grammar, spelling and tone visibility with 100 AI prompts per month.
  • Pro adds tone adjustment, full-sentence rewrites, plagiarism and AI-text detection in a single subscription.
  • Team features include style guides, brand tones, analytics and user groups; Enterprise adds SSO, SCIM and audit logs.
  • Public REST APIs exist for analytics, licence management, writing score and detection.

Cons

  • Monthly billing for Pro is $30, versus $12 per month on annual billing, so month-to-month use costs 2.5 times as much.
  • Third-party tests of the AI Detector report notable false-positive rates (figures range from 14.2% to 34% across sources), so it is unreliable as proof.
  • An App Store reviewer criticizes the iOS keyboard setup for pushing users to grant broad access.
  • Experienced writers on forums report turning off many suggestions; advanced features are gated behind Pro.

Suno

Pros

  • Creates full songs with vocals and lyrics from a short prompt or your own lyrics
  • Free plan with 50 daily credits and access to v6-mini
  • Edits a single section, line or word without regenerating the song
  • Web, iOS and Android apps
  • Premier includes Suno Studio with MIDI, effects and multitrack export

Cons

  • Free plan songs cannot be used commercially and are owned by Suno
  • Song downloads are capped at 20 per month on Pro and 60 on Premier, with none on the free plan
  • Suno Studio, personas and advanced stem splitting require the $30 Premier plan
  • Music made entirely by AI may not qualify for copyright protection
  • No public self-serve API; Universal Music Group and Sony Music lawsuits against Suno are reported as still ongoing

Platforms

  • Web
    Grammarly
    Supported
    Suno
    Supported
  • Windows
    Grammarly
    Supported
    Suno
    Not supported
  • macOS
    Grammarly
    Supported
    Suno
    Not supported
  • iOS
    Grammarly
    Supported
    Suno
    Supported
  • Android
    Grammarly
    Supported
    Suno
    Supported
  • API
    Grammarly
    Supported
    Suno
    Not supported
  • Browser Extension
    Grammarly
    Not supported
    Suno
    Not supported
  • Chrome Extension
    Grammarly
    Supported
    Suno
    Not supported
  • Firefox Extension
    Grammarly
    Supported
    Suno
    Not supported

Integrations

Grammarly

7 integrations
  • Microsoft Office
  • Google Docs
  • Chrome
  • Safari
  • Firefox
  • Edge
  • Zendesk

Suno

No integrations listed.

Company

  • Company
    Grammarly
    Superhuman
    Suno
    Suno, Inc.
  • Founded
    Grammarly
    2009
    Suno
    Not listed
  • Headquarters
    Grammarly
    San Francisco, CA
    Suno
    Cambridge, MA
  • Monthly users
    Grammarly
    40 million people
    Suno
    Not listed
  • Listing
    Grammarly
    Claimed
    Suno
    Claimed

Frequently asked questions

Is Grammarly better than Suno?

It depends on your workflow. Grammarly is built for polishing emails and documents in real time across many apps, keeping tone and style consistent across a team. Suno is built for quick song drafts from a text prompt.

What are the key feature differences between Grammarly and Suno?

Grammarly: AI writing assistant that corrects, rewrites and tone-checks your text across every app. Suno: Turn text prompts, lyrics or audio into complete songs with vocals.

Does Grammarly or Suno have a free plan?

Yes, both do. Grammarly is freemium and Suno is freemium, and each has a free plan or trial.

Which is cheaper, Grammarly or Suno?

Both can be used for free. Paid plans differ in limits and features, so compare the tiers in the pricing table above.