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Grammarly vs Lex: Which AI Writing Is Better in 2026?

Compare pricing, features, integrations, verified reviews, AI capabilities, security, and customer satisfaction, side by side, with no marketing spin.

Leads 3/9
Rating
,
Reviews
0
From
$0/mo

in AI Writing

Rating
,
Reviews
0
From
Custom

in AI Writing

The Short Answer

Grammarly vs Lex, in 15 seconds

Choose Grammarly if…

  • You want the lower entry price
  • You need a genuinely free plan

Choose Lex if…

  • You depend on a broad integration ecosystem

Head-to-Head Scorecard

How Grammarly and Lex score

Grammarly leads on 3 of 9 measured dimensions.

  • Customer Rating

    Average score from verified user reviews

    Even
    Grammarly
    No reviews
    Lex
    No reviews
  • Review Volume

    Number of verified reviews, a proxy for adoption

    Even
    Grammarly
    0
    Lex
    0
  • Entry Pricing

    Lowest published starting price (free plan = lowest)

    Grammarly
    Grammarly
    $0/mo
    Lex
    Custom
  • Free Access

    Availability of a free plan and/or free trial

    Grammarly
    Grammarly
    Free plan
    Lex
    Paid only
  • Integrations

    Number of listed third-party integrations

    Lex
    Grammarly
    2
    Lex
    6
  • Features

    Number of listed product capabilities

    Even
    Grammarly
    6
    Lex
    6
  • AI Features

    Capabilities mentioning AI, automation or ML

    Even
    Grammarly
    2
    Lex
    2
  • Security & Compliance

    Number of listed compliance certifications

    Even
    Grammarly
    2
    Lex
    2
  • Platforms & Deployment

    Supported platforms and deployment options

    Grammarly
    Grammarly
    7
    Lex
    3

Feature Comparison

Grammarly vs Lex feature breakdown

Search or filter the full feature matrix, core features, AI, integrations, APIs, security and compliance.

Grammarly
Lex
Overview
User rating
,
,
Pricing model
FREEMIUM
SUBSCRIPTION
Starting price
$0/mo
Custom
Free version
Free trial
Features
Key capabilities
Spelling and grammar checksTone visibilityFull-sentence rewritesAI promptsPlagiarism and AI text detectionEnterprise controls
AI feedback on draftsInline AI editsModel choiceCollaborationLex TeamsPrivate hosting
AI features
AI promptsPlagiarism and AI text detection
AI feedback on draftsInline AI edits
Integrations & API
Integrations
Google DocsMicrosoft Office
Google DocsMicrosoft WordChromeGmailSlackNotion
Public API
Platforms
Deployment
Cloud
Cloud
Platforms
WebiOSAndroidWindowsmacOSChrome extension
WebiOS
Mobile support
Security & Compliance
Compliance
SOC 2GDPR
SOC 2GDPR
Vendor
Company
,
,
Verified
Founded
2009
2022
Headquarters
San Francisco, California, USA
,

Pricing Comparison

Grammarly vs Lex pricing

Entry pricing, plan tiers and the cost factors that shape total cost of ownership.

Grammarly

$0/mo to start
FreeFree
  • Spelling and grammar checks
  • Tone visibility
  • 100 AI prompts per month
CustomCustom
  • Paid plan: full-sentence rewrites, plagiarism detection, 2,000 AI prompts
  • Enterprise: BYOK encryption, custom roles, DLP

Lex

Custom to start
CustomCustom
  • Pro tier with premium models
  • Lex Teams adds unlimited folders
  • Third-party sources report about $12 to $18 per month

Total cost of ownership factors

Free planGrammarly Lex
Free trial to evaluateGrammarly Lex
Transparent published pricingGrammarly Lex
Public API (build vs. buy add-ons)Grammarly Lex

Beyond list price, factor in implementation, training, add-ons and per-seat scaling when estimating total cost of ownership.

Pros & Cons

Grammarly vs Lex: strengths and trade-offs

Grammarly

Pros

  • Free plan available
  • Compliance: SOC 2, GDPR
  • Public API available

Cons

  • Fewer native integrations than the alternative

Lex

Pros

  • Broad integration ecosystem (6)
  • Compliance: SOC 2, GDPR
  • Public API available

Cons

  • No free plan
  • No free trial
  • Pricing is quote-based (less transparent)

Buyer Fit

Who should use Grammarly vs Lex?

Startups

Grammarly

Grammarly keeps early-stage costs lowest with its entry tier.

Small businesses

Grammarly

Grammarly offers the most accessible pricing for lean teams.

Agencies

Lex

Lex connects to more tools for multi-client workflows.

Enterprises

Either

Either leads on compliance and breadth for complex needs.

Ecommerce

Lex

Lex integrates with more of the commerce stack.

SaaS companies

Either

Either is the more developer- and automation-friendly choice.

Integration overlap

Shared integrations (1)

Google Docs

Only in Grammarly (1)

Microsoft Office

Only in Lex (5)

Microsoft WordChromeGmailSlackNotion

Keep Exploring

Other alternatives worth considering

Similar ai writing products buyers compare alongside Grammarly and Lex.

Ask SIA which solution fits your business

SIA, Saaskart's AI buying assistant, weighs Grammarly and Lex against your team size, budget, integrations and compliance needs, then recommends the right fit and the questions to ask each vendor.

Get a personalised recommendation

Grammarly vs Lex, Frequently Asked Questions

What is the difference between Grammarly and Lex?

Grammarly and Lex are both AI Writing solutions. Grammarly is rated 0.0/5 by 0 users, while Lex is rated 0.0/5 by 0 users. The main differences lie in pricing, features, and target audience.

Which is better, Grammarly or Lex?

Based on user ratings, Grammarly scores higher at 0.0/5. The best choice depends on your team size, budget, and specific requirements.

Which is cheaper, Grammarly or Lex?

Grammarly is the more affordable option, starting at $0/month.

Does Grammarly or Lex have a free plan?

Grammarly offers a free plan. Lex does not have a free tier but offers paid plans.

Can I switch from Grammarly to Lex?

Switching between Grammarly and Lex is possible. Both support data export. Check integration compatibility and plan for data migration to minimise disruption to your team.

Who should use Grammarly vs Lex?

Grammarly is best suited for teams that prioritise enterprise features. Lex works well for teams needing advanced capabilities.

Our Verdict

The bottom line on Grammarly vs Lex

Best Overall

Either

It's a tie balances user satisfaction and proven adoption.

Best for Startups

Grammarly

Grammarly has the friendliest entry point for new teams.

Best for Enterprise

Either

It's a tie leads on compliance and feature breadth.

Best Value

Grammarly

Grammarly delivers the lowest cost to get started.

Best AI Features

Either

Comparable AI capabilities on both sides.

Highest Rated

Either

Both earn equal user ratings.

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