7 Best AI LinkedIn Comment Generators in 2026 (Honest Ranking)

AI LinkedIn comment generators have exploded in the past two years. In 2024, there were maybe a dozen. In 2026, there are hundreds — most of them terrible.

The problem isn't AI. The problem is that most AI comment generators optimize for volume over quality, producing comments that sound robotic, generic, or worse, like obvious AI output that damages your professional brand.

But the good ones? They've cracked the authenticity problem. And the right tool can genuinely save you 5–7 hours a month while improving the quality of your LinkedIn engagement.

This comparison covers the 7 most commonly used AI LinkedIn comment generators in 2026 — ranked by what actually matters: comment quality, persona authenticity, LinkedIn integration, and value for money.

---

What to Look for in an AI LinkedIn Comment Generator

Before we rank them, here's the evaluation criteria:

Comment quality: Does the generated comment add real value to the thread, or does it read like a generic AI response?

Persona customization: Can you configure your tone, voice, and area of expertise so the AI sounds like you instead of a generic business professional?

Context awareness: Does the tool read the full post before generating a comment, or does it work from a headline/snippet?

LinkedIn integration: Does it work inside LinkedIn natively (Chrome extension), or do you have to copy/paste between tools?

Authenticity signal: Do the comments look AI-generated to a careful reader? (This matters more than most people admit)

Price-to-value: What does it cost, and is the ROI clear?

---

The 7 Best AI LinkedIn Comment Generators in 2026

1. Gromming — Best Overall

Best for: Professionals, creators, and sales teams who want persona-driven comments that sound genuinely human

How it works: Gromming is a Chrome extension that injects directly into LinkedIn. When you're reading a post, click the Gromming button and it reads the full post context, applies your configured persona, and generates a comment you can edit or post.

What makes it different: Persona depth. Most tools let you choose a "tone" (professional, casual, etc.). Gromming lets you configure a full persona — analyst, motivator, tactical questioner, comedian, grateful, curious, or quick win provider — and each persona generates fundamentally different comment frameworks, not just different word choices.

An analyst persona generates: specific data points, counterintuitive observations, and precise questions. A tactical questioner generates: probing follow-ups that surface the reader's genuine challenges. A motivator generates: affirming, energizing responses that build community.

The result is comments that feel genuinely authored, not generated.

Integration: Native Chrome extension — works inside LinkedIn's UI with no copy/paste required.

Strengths:

• Highest comment quality in testing (most likely to generate replies)
• Multiple personas with distinct voices
• Streaming generation (see the comment build in real time)
• Built-in edit before posting

Weaknesses:

• Newer tool (less brand recognition than incumbents)
• Currently focuses on comments (no post drafting yet)

Pricing: Free tier available (30 comments/month). Paid plans start at reasonable price points for unlimited use.

Verdict: The best AI LinkedIn comment generator for anyone who cares about authenticity and comment quality. If your brand is your business, this is the tool.

---

2. Taplio — Best for Content + Comment Workflow

Best for: LinkedIn creators managing full content strategy alongside commenting

How it works: Taplio is a comprehensive LinkedIn tool with post scheduling, analytics, and AI comment/post generation. It's more of a LinkedIn management platform than a dedicated comment generator.

Comment quality: Good, but more generic than Gromming. The comments tend to be on the safer/shorter side — less likely to be distinctly memorable.

Integration: Browser extension + web app. Comments require more context-switching than a native LinkedIn integration.

Strengths:

• Full platform: scheduling, analytics, DM management, comment generation
• Good post templates library
• Team/agency features

Weaknesses:

• Comment generation is a secondary feature, not the core focus
• More expensive than dedicated commenting tools
• Persona customization is limited compared to Gromming

Pricing: Starts at ~$65/month. Significant investment for comment generation alone.

Verdict: Strong platform if you're managing a full LinkedIn content operation. Overkill for commenting alone. The extra cost is worth it only if you'll use the scheduling and analytics features heavily.

---

3. AuthoredUp — Best for Post Formatting + Comments

Best for: LinkedIn creators focused on content formatting and performance tracking

How it works: AuthoredUp is primarily a LinkedIn post editor with AI-assisted writing features and analytics. Comment generation is included but secondary.

Comment quality: Decent. Comment generation produces reasonable outputs, but the tool's strength is in post creation and formatting, not commenting.

Integration: Chrome extension that overlays LinkedIn's editor.

Strengths:

• Excellent post formatting tools
• Good LinkedIn analytics
• Comment revision history

Weaknesses:

• Comment generation is clearly a secondary feature
• No persona system for comments

Pricing: ~$18–40/month depending on plan.

Verdict: Worth it for the post formatting and analytics alone. The AI comment feature is a bonus, not a reason to choose it. If commenting is your primary goal, look elsewhere.

---

4. Engage AI — Established Player

Best for: Teams with basic comment generation needs

How it works: One of the earlier AI LinkedIn commenting tools. Connect your LinkedIn, configure some basic preferences, and Engage AI surfaces suggested comments as you browse.

Comment quality: Inconsistent. When it works well, comments are decent. When it doesn't, they're visibly generic. There's limited post-context analysis — the tool often seems to work from the post headline rather than the full content.

Integration: Chrome extension.

Strengths:

• One of the most widely used tools in this category
• Simple UX
• Reasonable pricing

Weaknesses:

• Comment quality is inconsistent — you'll see a lot of "Great post! This really resonates" type outputs
• Limited persona customization
• Detection risk: the comments from this tool are recognized by regular LinkedIn users as AI-generated

Pricing: Free tier with limitations. Paid starts ~$15–30/month.

Verdict: A functional tool but shows its age in 2026. The quality bar has risen in this category and Engage AI hasn't kept up with more recent entrants on persona authenticity.

---

5. Draftly — Best for Speed

Best for: High-volume commenters who prioritize quantity and efficiency

How it works: Draftly focuses on speed — generating a comment draft within 2–3 seconds of clicking. Configuration is minimal by design.

Comment quality: Fast, but thin. The comments are short and rarely add substantive value to a thread. Better than "Great post!" but not by a lot.

Integration: Chrome extension + web dashboard.

Strengths:

• Genuinely fast generation
• Clean UI
• Affordable

Weaknesses:

• Prioritizes speed over quality
• No real persona system
• Not suitable for thought leaders or anyone building a credible professional brand

Pricing: ~$12–20/month.

Verdict: If you need to post 50 comments a day in a quantity-over-quality play (some outbound SDR teams run this strategy), Draftly is fast and cheap. For anyone building a personal brand, the comment quality is too low.

---

6. Postwise — Focused on Viral Post Generation

Best for: LinkedIn creators who want to write viral posts (commenting is secondary)

How it works: Postwise is primarily a viral post generator. It analyzes high-performing LinkedIn posts and helps you write content in similar formats. Comment generation is included but minimal.

Comment quality: Basic. The comment feature feels like an afterthought compared to the post generation tools.

Integration: Web app + Chrome extension (limited).

Strengths:

• Excellent post generation features
• Viral post inspiration and hooks
• Good for creators focused on original content volume

Weaknesses:

• Comment generation is clearly secondary
• Post-focused pricing doesn't make sense for comment-primary users

Pricing: ~$37–97/month.

Verdict: Strong tool if post volume is your goal. Wrong tool if commenting is your primary LinkedIn growth strategy.

---

7. MagicPost — Budget Option

Best for: Individuals looking for basic AI LinkedIn assistance at the lowest price point

How it works: MagicPost generates LinkedIn posts and comments using standard AI prompts. Minimal configuration.

Comment quality: Functional but generic. Comments often sound like they came from a prompt that says "write a professional LinkedIn comment about this post."

Integration: Web app only — requires copy/paste into LinkedIn.

Strengths:

• Very affordable
• Simple UX

Weaknesses:

• Web app only — no native LinkedIn integration (significant friction)
• No persona customization
• Comment quality is the lowest on this list

Pricing: ~$9–15/month.

Verdict: If budget is the primary constraint and you're willing to heavily edit the outputs, it's functional. For anyone investing time in LinkedIn growth seriously, the lack of native integration and low comment quality makes it a poor fit.

---

Head-to-Head Comparison

Tool	Comment Quality	Persona System	Native Integration	Price/Month	Best For
Gromming	⭐⭐⭐⭐⭐	⭐⭐⭐⭐⭐	✅ Chrome extension	Starts free	Quality-first commenting
Taplio	⭐⭐⭐⭐	⭐⭐⭐	✅ Extension + web	~$65	Full LinkedIn management
AuthoredUp	⭐⭐⭐	⭐⭐	✅ Extension	~$18–40	Post formatting + analytics
Engage AI	⭐⭐⭐	⭐⭐	✅ Extension	~$15–30	Teams, established users
Draftly	⭐⭐	⭐	✅ Extension	~$12–20	Speed, high volume
Postwise	⭐⭐	⭐	Partial	~$37–97	Viral post generation
MagicPost	⭐⭐	⭐	❌ Web only	~$9–15	Budget

---

The Authenticity Question

The biggest risk with any AI LinkedIn comment generator: producing comments that look AI-generated.

Experienced LinkedIn users can spot the patterns:

• Generic affirmation + restatement of the post's point
• "This really resonates!" openers
• Missing any specific data, story, or concrete example
• Perfect grammar with no personal voice
• Comments that could apply to any post on the same topic

The tools that score highest on authenticity (Gromming, and Taplio when configured carefully) share a few characteristics:

1. They read the full post, not just the headline
2. They apply a specific persona with consistent voice characteristics
3. They generate comments that reference specific points from the post

For a deeper dive on staying authentic with AI tools, see Are AI LinkedIn Comments Safe? How to Stay Authentic and Avoid Getting Banned.

---

Which Tool Should You Choose?

Choose Gromming if: Comment quality and persona authenticity are your top priorities. You're building a personal brand, in sales, or doing thought leadership and can't afford generic-sounding AI output.

Choose Taplio if: You want a full LinkedIn management platform and are willing to pay a premium for scheduling, analytics, and DM management alongside comment generation.

Choose AuthoredUp if: Post formatting and performance analytics are your primary needs; comment generation is a bonus.

Choose Engage AI if: You want a widely-used, established tool and are comfortable with moderately generic outputs.

Choose Draftly if: You prioritize volume and speed, are in a high-velocity outbound role, and will heavily edit outputs anyway.

---

Further Reading

• Are AI LinkedIn Comments Safe? How to Stay Authentic and Avoid Getting Banned — the risk and authenticity framework
• Gromming Review 2026: The AI Comment Generator That Saves 7+ Hours a Month — full review of our top pick

---

Start With the Best

Gromming is free to start — 30 comments per month, no credit card required. Install the Chrome extension, configure your persona, and see the difference quality AI commenting makes in your LinkedIn growth.

Try Gromming free →