Devin vs Spell.so: Pricing and Ratings Compared (2026)
Entry prices and free plans as read on each vendor's pricing page, and user ratings as published on review sites, for Devin and Spell.so side by side. This page compares data; it is not a hands-on review.
On the data: On the data below the two are close or not directly comparable, so we do not name a winner for this pair.
Short on time? Here's the quick answer
Based on published vendor pricing and features and on public review data, here's who should pick what:
Devin
AI software engineer by Cognition Labs
Best for you if:
- • You want AI software engineer
Spell.so
Delegate tasks to autonomous AI agents and transform your daily work with intuitive AI tools.
Best for you if:
- • You want automates a wide range of tasks using AI agents
| At a Glance | Devin | Spell.so |
|---|---|---|
Starts at | From $500/mo, billed monthly Team plan | From $7.50/mo, billed yearly Personal plan |
Category | AI Coding Developer Tools | AI Assistants Workflow Automation |
Rating | n/a | n/a |
Free plan | No | No |
Watch out for | Overage fees of $2.25/ACU on Core plan | No overage credit purchases available |
Choose Devin or Spell.so?
Choose Devin if
- You want AI software engineer
- You want end-to-end tasks
- You work in AI coding, not AI assistants
Choose Spell.so if
- You want automates a wide range of tasks using AI agents
- You want allows parallel execution of multiple AI tasks, saving time
- You work in AI assistants, not AI coding
In-Depth Analysis
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
- Pro: AI software engineer
- Pro: End-to-end tasks
- Pro: Good for automation
- Pro: Innovative approach
- Pro: Active development
Weaknesses
- Con: Waitlist/limited access
- Con: Expensive
- Con: Accuracy varies
- Con: Not replacement for devs
- Con: Early stage
Key features
Spell.so
Delegate tasks to autonomous AI agents and transform your daily work with intuitive AI tools.
The pricing is fair for light usage but becomes expensive for heavy users, as the $7.50 Personal tier offers only 800 credits while the $41 Expert tier gives 5000 credits, a poor value per credit at the mid-tier.
Watch out
No overage credit purchases available
Strengths
- Pro: Automates a wide range of tasks using AI agents.
- Pro: Allows parallel execution of multiple AI tasks, saving time.
- Pro: Offers a rich library of prompts and templates for various industries.
- Pro: Provides plugins to extend agent functionality.
- Pro: Includes a free trial to test features.
Weaknesses
- Con: Pricing is credit-based, which might require monitoring usage.
- Con: Teams feature is listed as 'Coming soon!'
Key features
Plans and prices: Devin vs Spell.so
| Tool | Plans and prices | Source |
|---|---|---|
| Devin |
| cognition-labs.com read Oct 4, 2026 |
| Spell.so |
| spell.so/pricing read Sep 30, 2026 |
Prices as read on each vendor's own pricing page on the date shown. Plans are listed per tool and are not matched against the other tool's plans: a plan name or price in one column says nothing about the same row in the other. Details on Devin pricing and Spell.so pricing.
Key Takeaways
Devin
- Choose if you want AI software engineer by Cognition Labs
Spell.so
- Choose if you want delegate tasks to autonomous AI agents and transform your daily work with intuitive AI tools
What the data shows
On the data below the two are close or not directly comparable, so we do not name a winner for this pair.
- Entry prices are not ranked, they are charged on different bases: Devin $500/mo, billed monthly; Spell.so $7.50/mo, billed yearly.
Criteria: user rating (only above 20 reviews on both sides, gap of 0.2 or more), entry price (only on the same billing basis), free plan. How we rate
Frequently Asked Questions
How do Devin and Spell.so compare in 2026?
On the data below the two are close or not directly comparable, so we do not name a winner for this pair. Entry prices are not ranked, they are charged on different bases: Devin $500/mo, billed monthly; Spell.so $7.50/mo, billed yearly.
What are Devin and Spell.so used for?
Devin: AI software engineer by Cognition Labs. Spell.so: Delegate tasks to autonomous AI agents and transform your daily work with intuitive AI tools.
What does Devin cost vs Spell.so?
Devin's cheapest paid plan is Team at $500/mo, billed monthly. Spell.so's cheapest paid plan is Personal at $7.50/mo, billed yearly. Prices read on the vendors' pricing pages, latest check Oct 4, 2026.
What's the main difference between Devin and Spell.so?
Devin's main strength: AI software engineer. Spell.so's main strength: automates a wide range of tasks using AI agents.