LinkedIn Comment Generator Tools Compared: Free vs Paid (2025)

You see the value of commenting on LinkedIn. Strategic comments build relationships, increase visibility, and generate leads. But writing 15-20 thoughtful comments daily? That's 30-45 minutes you don't have.

This is where LinkedIn comment generators transform your workflow. Instead of staring at a blank comment box for two minutes per post, AI analyzes the content and suggests relevant comments in seconds.

But not all comment generators are created equal. Some produce robotic, generic responses that damage your credibility. Others deliver authentic-sounding comments that save time without sacrificing quality.

This guide compares seven leading LinkedIn comment generators across pricing, AI quality, features, and use cases. You'll discover which tool matches your needs, budget, and commenting strategy.

What is a LinkedIn Comments Generator?

A LinkedIn comment generator is software that uses artificial intelligence to create comment suggestions for LinkedIn posts. You provide the post (or the tool analyzes it automatically), and the AI generates relevant comment options.

AI-powered vs. template-based generators:

Template-based generators use pre-written comment structures with variable fields:

• "Great post about [topic]!"
• "I especially liked your point about [detail]"
• "This resonates because [reason]"

The AI fills in brackets based on post content. Results feel formulaic.

AI-powered generators use large language models (like GPT-4) to understand post context and generate original comments:

• Analyzes post topic, tone, and key points
• Considers your commenting style and voice
• Generates contextually appropriate responses
• Adapts to different post types (thought leadership, news, personal stories)

AI-powered generators produce more authentic results.

How AI analyzes posts and suggests comments:

1. Content extraction: Reads post text, identifies key themes
2. Context analysis: Determines post type (question, opinion, announcement, etc.)
3. Sentiment detection: Identifies tone (positive, critical, vulnerable, celebratory)
4. Comment generation: Creates 2-3 comment options matching context
5. Style matching: Adapts to your voice (professional, casual, data-driven, storytelling)

Benefits of using a comment generator:

• Time savings: 2-3 minutes per comment → 20-30 seconds
• Consistency: Never skip commenting because you're "out of ideas"
• Quality baseline: AI prevents generic "Great post!" comments
• Volume scaling: Comment 3x more without 3x time investment
• Learning tool: Study AI suggestions to improve your manual commenting

The best generators serve as AI writing assistants, not replacement for human judgment. You still review, customize, and approve before posting.

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Top 7 LinkedIn Comment Generator Tools

#1 LigoAI Chrome Extension (Editor's Choice)

What it is: Browser extension that generates AI comments directly within LinkedIn's interface. Click a button on any post, get instant comment suggestions.

Key features:

• Context-aware AI: Analyzes post content, not just keywords
• Voice learning: Adapts to your commenting style over time
• Multiple suggestions: Generates 2-3 options per post
• Manual trigger: You control when to use AI (prevents over-automation)
• Multi-platform: Works on LinkedIn, Twitter, Reddit, Facebook
• Theme-based commenting: Define your expertise areas for better targeting

AI quality: Excellent. Uses GPT-4 class models with fine-tuning for LinkedIn context.

Pricing: Free trial (first 30 comments), then paid plans

How it works:

1. Navigate to any LinkedIn post
2. Click the LigoAI extension icon
3. Review 2-3 AI-generated comment suggestions
4. Select one and customize if desired
5. Post manually (you approve every comment)

Pros:

• Best-in-class AI quality
• Works directly in LinkedIn (no context switching)
• Free trial lets you test voice adaptation
• Manual approval prevents spam/mistakes
• Learns your voice over 30 trial comments
• Multi-platform support

Cons:

• Chrome extension only (no mobile app)
• Free trial limited to 30 comments
• Requires manual triggering (not automated)

Best for: Professionals who want premium AI quality with a free trial to test voice adaptation. Ideal for comment-first LinkedIn strategies.

Example output:

Original post: "Just closed our Series A! Grateful for our investors and team."

LigoAI suggestions:

1. "Huge milestone! What was the most surprising lesson you learned during fundraising? (Asking as someone currently preparing for our seed round)"
2. "Congratulations to you and the team! Series A is a massive validation of the problem you're solving. What's next on the roadmap now that you're funded?"
3. "This is inspiring! I've been following your journey since the beta launch. Excited to see how you scale with this new fuel."

All three sound authentic, add value, and encourage replies.

Try LigoAI Free (30 Comments)

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#2 ChatGPT for LinkedIn Comments

What it is: Using ChatGPT (via OpenAI's website or API) to generate comment suggestions manually.

How it works:

1. Copy LinkedIn post text
2. Paste into ChatGPT with prompt: "Write a thoughtful LinkedIn comment on this post: [paste post]"
3. Review ChatGPT's suggestion
4. Copy and paste into LinkedIn
5. Edit for your voice

AI quality: Excellent (GPT-4 is top-tier)

Pricing: Free (GPT-3.5) or $20/month (ChatGPT Plus with GPT-4)

Pros:

• Completely free option available
• Familiar tool if you already use ChatGPT
• Maximum customization via prompts
• Works for any social platform
• No installation required

Cons:

• Manual copy-paste workflow (tedious)
• No LinkedIn integration
• Slower than browser extensions
• Doesn't learn your specific voice
• Requires tab switching

Best for: Budget-conscious users comfortable with manual workflows and willing to trade convenience for cost savings.

ChatGPT prompt templates for better comments:

"Write a thoughtful LinkedIn comment on this post. Make it professional but conversational, under 50 words, and ask a follow-up question: [paste post]"

"Generate 3 different LinkedIn comment options for this post - one asking a question, one sharing a related insight, and one congratulating the author: [paste post]"

"Write a LinkedIn comment that adds value to this discussion without being generic. Reference a specific detail from the post: [paste post]"

Verdict: Best free option, but the manual workflow makes it impractical for high-volume commenting (15+ daily).

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#3 Engage AI

What it is: Chrome extension specializing in LinkedIn comment generation with a focus on sales and networking.

Key features:

• AI comment suggestions on LinkedIn posts
• Prospect tracking and engagement monitoring
• Comment templates for different scenarios
• Analytics on your commenting activity
• Lead scoring based on engagement

AI quality: Good. Not quite as contextually aware as LigoAI or ChatGPT, but solid.

Pricing: $19-99/month depending on features

Pros:

• Sales-focused features
• Good for B2B lead generation
• Tracks engagement with specific prospects
• Analytics dashboard
• Template library

Cons:

• More expensive than alternatives
• AI quality slightly below LigoAI/ChatGPT
• Comments can feel templated
• Primarily LinkedIn-only

Best for: Sales professionals who want combined comment generation and lead tracking in one tool.

vs LigoAI: Engage AI offers CRM-lite features (prospect tracking) that LigoAI lacks. LigoAI offers better AI quality and multi-platform support. Choose Engage AI if you need sales features; choose LigoAI if you prioritize comment authenticity.

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#4 Taplio Comment Generator

What it is: Comment generation as part of Taplio's all-in-one LinkedIn platform.

Key features:

• AI comment suggestions
• Content inspiration library
• Post scheduling
• Analytics dashboard
• Carousel maker
• LinkedIn CRM

AI quality: Good, but not specialized for comments specifically.

Pricing: $39-199/month (comment generator is just one feature)

Pros:

• All-in-one LinkedIn platform
• Good if you use multiple Taplio features
• Comprehensive toolset

Cons:

• Expensive if you only want comment generation
• AI quality doesn't match specialized tools
• Feature overwhelm for focused use cases
• Steep learning curve

Best for: Users who want all-in-one LinkedIn platform and will use 5+ features regularly.

Verdict: Don't subscribe to Taplio ($39-199/mo) just for comment generation. Use LigoAI or ChatGPT instead and save money.

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#5 Copy.ai LinkedIn Comment Feature

What it is: General AI writing tool with a LinkedIn comment template.

Key features:

• 90+ AI writing templates
• LinkedIn comment template
• Tone adjustment (professional, casual, friendly)
• Multi-language support
• Team collaboration

AI quality: Good for general writing, average for LinkedIn-specific comments.

Pricing: Free plan (limited), Pro $49/month

Pros:

• Useful if you need AI writing for multiple purposes
• Good tone control
• Free plan available
• Multi-language support

Cons:

• Not specialized for LinkedIn
• Generic comments unless you craft detailed prompts
• No LinkedIn integration
• Manual copy-paste workflow
• Better alternatives for LinkedIn-specific use

Best for: Content creators who need general AI writing tools and occasionally want LinkedIn comment assistance.

Verdict: If you already subscribe to Copy.ai, use the LinkedIn comment template. Don't subscribe just for this feature - specialized tools work better.

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#6 Jasper AI (formerly Jarvis)

What it is: Enterprise AI writing platform with LinkedIn content templates.

Key features:

• 50+ AI templates including LinkedIn posts/comments
• Brand voice customization
• Team workspaces
• Long-form content generation
• SEO optimization tools

AI quality: Excellent for long-form content, good for short comments.

Pricing: $49-125/month

Pros:

• Enterprise-grade AI
• Excellent brand voice matching
• Great for teams
• Comprehensive content tool

Cons:

• Expensive for just comment generation
• Overkill for individual users
• No LinkedIn integration
• Better suited for blog posts than comments

Best for: Marketing teams creating diverse content types who occasionally need LinkedIn comment assistance.

Verdict: Don't buy Jasper ($49-125/mo) for LinkedIn comments. It's built for long-form content. Use specialized tools instead.

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#7 DIY: Custom ChatGPT Prompts + Automation

What it is: Building your own comment generation system using ChatGPT API and basic automation.

How it works:

1. Create custom ChatGPT prompts for your voice
2. Use browser automation (e.g., Zapier, Make.com) to streamline workflow
3. Optionally build a simple browser extension

AI quality: Excellent (if using GPT-4 API)

Pricing: GPT-4 API costs ~$0.02-0.05 per comment

Pros:

• Pay only for usage
• Maximum customization
• Learning experience if you're technical
• Cheapest at scale

Cons:

• Requires technical skills
• Time investment to build
• Maintenance burden
• No support or updates

Best for: Technical users who want maximum control and minimum cost.

Verdict: Only pursue if you enjoy building tools. For 99% of users, pre-built solutions save time and frustration.

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Feature Comparison Table

Feature	LigoAI	ChatGPT	Engage AI	Taplio	Copy.ai	Jasper	DIY
Price	Free trial + paid	Free-$20	$19-99	$39-199	Free-$49	$49-125	API costs
AI Quality	Excellent	Excellent	Good	Good	Good	Excellent	Excellent
LinkedIn Integration	✅	❌	✅	✅	❌	❌	Custom
Voice Learning	✅	Limited	Limited	Limited	✅	✅	Custom
Multi-Platform	✅	✅	❌	❌	❌	❌	Custom
Free Trial	30 comments	Forever (GPT-3.5)	Limited	7 days	Limited	7 days	N/A
Ease of Use	Very Easy	Easy	Easy	Moderate	Moderate	Moderate	Difficult
Setup Time	2 minutes	0 minutes	5 minutes	30 minutes	10 minutes	30 minutes	Hours
Mobile Support	❌	✅	❌	❌	✅	✅	Custom
Comment Types	All types	All types	Sales-focused	All types	General	General	Custom
Best For	Engagement-focused	Budget users	Sales pros	All-in-one seekers	Multi-purpose writing	Enterprise	Developers

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Free vs. Paid Comment Generators: What's the Difference?

What you get with free tools:

ChatGPT Free (GPT-3.5):

• Unlimited comment generation
• Basic AI quality
• Manual workflow
• No LinkedIn integration

LigoAI Free Trial:

• 30 AI-generated comments
• Premium AI quality (GPT-4 class)
• LinkedIn integration
• Voice learning during trial

Copy.ai Free Plan:

• 2,000 words/month (≈80 comments)
• Basic templates
• Limited AI quality

What free tools lack:

• Unlimited usage (trials have limits)
• Advanced voice customization
• Priority support
• Team features
• Analytics

Premium features worth paying for:

1. Voice adaptation: AI learns your style over time. Free tools don't personalize.

2. LinkedIn integration: Browser extensions save 10-15 seconds per comment vs. copy-paste. Multiply by 15 daily comments = 3.75 minutes saved daily = 23 hours/year.

3. Multiple suggestions: Paid tools generate 2-3 options per post. Free tools typically generate one.

4. Analytics: Track which comment types perform best, optimize over time.

5. Priority AI models: Paid tools use GPT-4 or equivalent. Free tools often use GPT-3.5 (lower quality).

ROI analysis: Is a paid tool worth it?

Assumptions:

• You comment on 15 LinkedIn posts daily
• Manual commenting takes 2.5 minutes per comment
• AI-assisted commenting takes 30 seconds per comment
• You work 250 days/year

Time savings:

• Manual: 15 comments × 2.5 min = 37.5 min/day = 156 hours/year
• AI-assisted: 15 comments × 0.5 min = 7.5 min/day = 31 hours/year
• Savings: 125 hours/year

Value calculation:

• If your time is worth $50/hour: 125 hours × $50 = $6,250/year saved
• If your time is worth $100/hour: 125 hours × $100 = $12,500/year saved

Cost comparison:

• LigoAI: Free trial then paid (pricing TBD)
• ChatGPT Plus: $240/year
• Engage AI: $228-1,188/year
• Taplio: $468-2,388/year

Conclusion: Even at $240/year (ChatGPT Plus), ROI is 26:1 if your time is worth $50/hour. Paid tools are worth it for professionals who comment consistently.

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How to Use a LinkedIn Comment Generator (Step-by-Step)

Using LigoAI (Recommended for Beginners)

Step 1: Install the Chrome Extension

1. Visit LigoAI Chrome Web Store page
2. Click "Add to Chrome"
3. Confirm installation
4. Pin extension to toolbar for easy access

Step 2: Navigate to a LinkedIn Post

1. Open LinkedIn in Chrome
2. Scroll your feed or visit a specific profile
3. Find a post you want to comment on

Step 3: Click "Generate Comment" Button

1. Click the LigoAI extension icon (or button on post if integrated)
2. Wait 2-3 seconds for AI analysis

Step 4: Customize AI Suggestions

1. Review 2-3 generated comment options
2. Select the best one
3. Edit to add personal touches:
   • Change a word or two to match your vocabulary
   • Add a specific detail from your experience
   • Adjust length if needed

Step 5: Post and Track Engagement

1. Click "Post" to publish comment
2. Monitor for replies and likes
3. Engage with anyone who responds

Time per comment: 20-40 seconds (vs. 2-3 minutes manual)

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Using ChatGPT (Best Free Option)

Step 1: Prepare Your Prompt

Copy this template:

Write a thoughtful, professional LinkedIn comment (40-60 words) on this post. Make it conversational, reference a specific detail from the post, and optionally ask a follow-up question:

[paste post text here]

Step 2: Copy LinkedIn Post Text

1. Find post you want to comment on
2. Select and copy the full post text
3. Keep the LinkedIn tab open

Step 3: Generate Comment in ChatGPT

1. Open ChatGPT in a new tab
2. Paste your prompt with the post text
3. Press Enter
4. Wait 3-5 seconds for response

Step 4: Review and Customize

1. Read ChatGPT's suggestion
2. Edit for your voice
3. Ensure it references the original post accurately

Step 5: Post on LinkedIn

1. Switch back to LinkedIn tab
2. Paste comment into comment box
3. Make final edits
4. Post

Time per comment: 60-90 seconds (faster than manual, slower than LigoAI)

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Best Practices for AI-Generated Comments

Even with AI assistance, follow these rules to maintain authenticity:

Always personalize before posting:

Generic AI suggestion:

"Great insights! I especially liked your point about remote work."

Personalized version:

"Your point about remote work resonates. We implemented your async communication approach last quarter and cut meeting time by 40%."

The personalized version adds a specific detail (40% reduction) that AI couldn't invent. This makes it authentic.

Mix generated and original comments:

Don't use AI for every comment. Aim for:

• 70% AI-assisted (generated + customized)
• 30% completely manual

This prevents over-reliance and keeps your voice authentic.

Avoid overusing generic phrases:

AI tools sometimes default to these patterns:

• "Great post!"
• "Thanks for sharing!"
• "This really resonates..."

If your comment could apply to any post, revise it. Add specificity.

Use AI to suggest, not replace, authenticity:

AI is a drafting tool, not an autopilot. The best workflow:

1. AI generates comment (saves time)
2. You add personal touch (preserves authenticity)
3. You approve final version (maintains control)

The 5-second personalization test:

Before posting any AI comment, spend 5 seconds asking:

• Does this sound like me?
• Would I appreciate receiving this comment?
• Does it add value beyond "nice post"?

If any answer is no, revise.

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Common Concerns About AI Comment Generators

Will people know it's AI-generated?

Not if you customize it. AI suggestions that get personalized are indistinguishable from manual comments. The dead giveaways of AI:

• Generic phrases
• Overly formal language
• No specific details
• Same comment structure repeatedly

Avoid these and your comments will read as authentic.

Does this violate LinkedIn's Terms?

No. LinkedIn prohibits automation that bypasses human oversight. Tools like LigoAI require manual approval for each comment. You're using AI as a writing assistant, not a bot.

Can AI truly sound authentic?

Yes and no.

AI alone sounds decent but generic. AI + your customization sounds authentic because you're injecting real experience and voice.

Think of AI like autocomplete on steroids. Just as you edit autocomplete suggestions, you edit AI suggestions.

Is this lazy or inauthentic?

Using AI comment tools is no more "cheating" than:

• Using spell check
• Using email templates
• Using Grammarly
• Using any productivity tool

The question isn't whether you use AI. It's whether your final comment adds value. A thoughtful AI-assisted comment beats a rushed, generic manual comment every time.

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Start Generating Better LinkedIn Comments Today

Our recommendation for most users:

1. Start with LigoAI's free trial (30 comments)

   • Test premium AI quality
   • See how well it adapts to your voice
   • Measure engagement impact
   • Risk-free since trial is free

2. If you want completely free: Use ChatGPT

   • Accept the manual workflow
   • Save money at the cost of convenience
   • Good for light commenting (5-10 posts daily)

3. If you're sales-focused: Try Engage AI

   • Combines comments with lead tracking
   • Worth the price if you use both features

4. Don't pay for: Taplio, Copy.ai, or Jasper just for comment generation

   • These tools make sense if you use their other features
   • Overkill and overpriced for comments alone

The future of LinkedIn engagement is AI-assisted, not AI-replaced. Comment generators help you show up consistently in strategic conversations without burning out on manual work.

The professionals dominating LinkedIn feeds aren't spending 45 minutes daily commenting. They're using AI to scale their engagement while preserving authenticity.

Try LigoAI Free (30 Comments) - Test premium AI comment generation with zero risk.

Your LinkedIn visibility compounds. Each thoughtful comment is a seed planted. AI helps you plant more seeds in less time. Start today.

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Related Resources

• Automate LinkedIn Comments: 5 Tools to Save Time in 2025
• 5 Ways to Use AI Comments on LinkedIn Without Sounding Like a Robot
• How to Write a Good LinkedIn Comment: 7-Step Formula for Agency Owners
• LinkedIn Comment Examples: Professional Responses for Every Situation
• Taplio Alternatives: 7 Better LinkedIn Tools in 2025