IntelliJ IDEA vs Mentat: Which is Better in 2026?
Choosing between IntelliJ IDEA and Mentat comes down to understanding what each tool does best. This comparison breaks down the key differences so you can make an informed decision based on your specific needs, not marketing claims.
Bottom line: IntelliJ IDEA is our overall pick for IDE & code editors workflows. Pick Mentat if you need AI coding.
Short on time? Here's the quick answer
We've tested both tools. Here's who should pick what:
IntelliJ IDEA
The capable & ergonomic Java IDE
Best for you if:
- • You need IDE & code editors features specifically
- • Java IDE that enterprise teams rely on
- • Advanced refactoring handles complex changes
Mentat
AI coding assistant for terminal
Best for you if:
- • You need something completely free
- • You need AI coding features specifically
- • Mentat is an AI coding assistant that works within your terminal
- • It edits code across files using GPT-4 with context awareness
| At a Glance |  IntelliJ IDEA |  Mentat |
|---|---|---|
Starts at | FreeFree tier available | FreeFree tier available |
Best For | IDE & Code Editors | AI Coding |
Rating | 4.7/5 | - |
Free plan | Yes | Yes |
Choose IntelliJ IDEA or Mentat?
Choose IntelliJ IDEA if
The capable & ergonomic Java IDE
- Best Java IDE
- Smart completions
- Refactoring tools
- Your work is IDE & code editors-shaped, not AI coding-shaped
Choose Mentat if
AI coding assistant for terminal
- AI coding assistant in terminal
- Code understanding and generation
- Open-source project
- You want a fully free tool (IntelliJ IDEA requires payment)
- Your work is AI coding-shaped, not IDE & code editors-shaped
| Feature | IntelliJ IDEA | Mentat |
|---|---|---|
| Pricing Model | Freemium | Free |
| User Rating | ★4.7/5 3,562 reviews | No ratings yet |
| Categories | IDE & Code EditorsDeveloper Tools | AI CodingTerminal Tools |
In-Depth Analysis
IntelliJ IDEA
The capable & ergonomic Java IDE
Strengths
- +Best Java IDE
- +Smart completions
- +Refactoring tools
Weaknesses
- -Resource intensive
- -Expensive Ultimate
Key features
Mentat
AI coding assistant for terminal
Strengths
- +AI coding assistant in terminal
- +Code understanding and generation
- +Open-source project
- +Command-line interface for developers
- +Context-aware code suggestions
Weaknesses
- -Terminal-based (no GUI)
- -Setup and configuration needed
- -May not match commercial alternatives
- -Requires technical proficiency
- -Community-driven development
Key features
Pricing: IntelliJ IDEA vs Mentat
| Plan | IntelliJ IDEA | Mentat |
|---|---|---|
| Tier 1 | Free Community | Free Open Source |
| Tier 2 | $599 year Ultimate | $35 Pro |
Pricing verified from each vendor's public pricing page. Compare in detail on IntelliJ IDEA pricing and Mentat pricing.
Who Should Use What?
On a budget?
Mentat is free. IntelliJ IDEA is freemium.
Go with: Mentat
Want the highest-rated option?
IntelliJ IDEA is rated 4.7/5. Mentat has no ratings yet.
Go with: IntelliJ IDEA
Value user reviews?
IntelliJ IDEA: 3,562 reviews (4.7/5). Mentat: no ratings yet.
Go with: IntelliJ IDEA
3 Questions to Help You Decide
What's your budget?
IntelliJ IDEA is freemium. Mentat is free. Go with Mentat if free matters most.
What's your use case?
IntelliJ IDEA is a IDE & code editors tool. Mentat is in AI coding. Pick the category that matches your needs.
How important are ratings?
IntelliJ IDEA is rated 4.7/5; Mentat has no ratings yet.
Key Takeaways
IntelliJ IDEA
- Free tier available
- Our pick for this comparison
Mentat
- Completely free
- Better fit for AI coding
The Bottom Line
IntelliJ IDEA is our pick. That said, Mentat is free, hard to beat on price.
Frequently Asked Questions
Is IntelliJ IDEA or Mentat better?
IntelliJ IDEA is rated in our evaluation. IntelliJ IDEA is freemium and Mentat is free.
What are IntelliJ IDEA and Mentat used for?
IntelliJ IDEA: The capable & ergonomic Java IDE. Mentat: AI coding assistant for terminal.
What does IntelliJ IDEA cost vs Mentat?
IntelliJ IDEA is freemium (free tier + paid plans). Mentat is completely free. Visit their websites for detailed pricing.