Thalia vs Devin: Which is Better in 2026?
Choosing between Thalia and Devin 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: Devin wins this matchup. GitLab is our overall AI Coding pick. GitLab is our free AI Coding pick. Pick Thalia if you need a fully free option.
Short on time? Here's the quick answer
We've tested both tools. Here's who should pick what:
Thalia
Agentic AI coding on macOS, with plan review and voice control
Best for you if:
- • You want a fully free tool (Devin requires payment)
- • You want privacy-respecting: no analytics, keys in Keychain, microphone recordings never saved
- • You want designed specifically for Muse Code CLI with a polished, SwiftUI-native experience
Devin
AI software engineer by Cognition Labs
Best for you if:
- • You want aI software engineer
- • You want end-to-end tasks
| At a Glance | ||
|---|---|---|
Starts at | FreeFree tier available | $20/monthCore |
Best For | AI Coding | AI Coding |
Rating | - | - |
Free plan | Yes | No |
Watch out for | n/a | Overage fees of $2.25/ACU on Core plan |
Choose Thalia or Devin?
Choose Thalia if
Agentic AI coding on macOS, with plan review and voice control
- You want a fully free tool (Devin requires payment)
- You want privacy-respecting: no analytics, keys in Keychain, microphone recordings never saved
- You want designed specifically for Muse Code CLI with a polished, SwiftUI-native experience
Choose Devin if
AI software engineer by Cognition Labs
- You want aI software engineer
- You want end-to-end tasks
| Feature | Thalia | Devin |
|---|---|---|
| Pricing Model | Free | Paid |
| User Rating | No ratings yet | No ratings yet |
| Categories | AI CodingAI Agents | AI CodingAI Agents |
In-Depth Analysis
Thalia
Agentic AI coding on macOS, with plan review and voice control
Strengths
- +Privacy-respecting: no analytics, keys in Keychain, microphone recordings never saved.
- +Designed specifically for Muse Code CLI with a polished, SwiftUI-native experience.
- +Structured workflow from planning to PR means you review and approve at every stage, reducing unintended changes.
Weaknesses
- -Requires Apple Silicon and macOS, limiting platform compatibility.
- -Dependent on Muse Code CLI access; not a standalone coding assistant.
- -GitHub integration requires the GitHub CLI (gh) and a GitHub remote repo.
Key features
Devin
AI software engineer by Cognition Labs
Devin's pricing is fair for individual developers with the $20/month Core plan, offering a pay-as-you-go model.
Watch out
Overage fees of $2.25/ACU on Core plan
Strengths
- +AI software engineer
- +End-to-end tasks
- +Good for automation
- +Innovative approach
- +Active development
Weaknesses
- -Waitlist/limited access
- -Expensive
- -Accuracy varies
- -Not replacement for devs
- -Early stage
Key features
Pricing: Thalia vs Devin
| Plan | Thalia | Devin |
|---|---|---|
| Tier 1 | N/A | $20 month Core |
| Tier 2 | N/A | $500 month Team |
| Tier 3 | N/A | custom Enterprise |
Pricing verified from each vendor's public pricing page. Compare in detail on Thalia pricing and Devin pricing.
Who Should Use What?
On a budget?
Thalia is free. Devin is paid.
Go with: Thalia
Want the highest-rated option?
Neither has ratings yet.
Too early to call on ratings, compare on features and pricing.
Value user reviews?
Neither has ratings yet.
Too early to call, neither has ratings yet.
3 Questions to Help You Decide
What's your budget?
Thalia is free. Devin is paid. Go with Thalia if free matters most.
What's your use case?
Both are ai coding tools. Compare their specific features to decide.
How important are ratings?
Neither has ratings yet.
Key Takeaways
Devin
- Our pick for this comparison
Thalia
- Completely free
The Bottom Line
Devin wins this matchup. GitLab is our overall AI Coding pick. GitLab is our free AI Coding pick. That said, Thalia is free, hard to beat on price.
Frequently Asked Questions
Is Thalia or Devin better?
Devin is rated in our evaluation. Thalia is free and Devin is paid.
What are Thalia and Devin used for?
Thalia: Agentic AI coding on macOS, with plan review and voice control. Devin: AI software engineer by Cognition Labs.
What does Thalia cost vs Devin?
Thalia is completely free. Devin is a paid tool. Visit their websites for detailed pricing.
