kitio.aiDeepWiki vs CARBON by testers.ai
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. DeepWiki is completely free, while CARBON by testers.ai is freemium.
At a glance
Best for
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- Auto-generated repo wikis
- Architecture diagrams
- Codebase Q&A
- DeepWiki MCP server
- Source links
- 12 free testing commands
- Exploratory and risk-based testing
- Accessibility checks
- Evidence-backed findings
- MCP server
- Regression test building
| Feature | DeepWiki | CARBON by testers.ai |
|---|---|---|
| Best for | AI-generated wikis and Q&A for any public GitHub repo | Open-source AI test manager that runs inside your coding agent |
| Category | Coding | Coding |
| Pricing model | Free | Freemium |
| Starting price | Free | $49/mo |
| Free plan | Yes, fully free | Yes |
| Made by | Cognition | testers.ai |
| Based in | United States | – |
| Rating | No ratings yet | No ratings yet |
| Key features |
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Pricing compared
DeepWiki is completely free, while CARBON by testers.ai is freemium.
Free plan
Cheapest paid plan
Top plan
Free trial
4 plans
Core
Free
- MIT open source
- 12 testing commands
- Accessibility and exploration
Pro
$49/mo
- Deeper testing workflows
- Everything in Core
Team
$95/mo
- Per user
- Minimum 5 developers
- Email support
Enterprise
$195/mo
- Per user
- Minimum 5 developers
- Zoom support and customizations
Prices in USD, checked Oct 28, 2026 or later. Plans change often, so confirm on each tool's site before you buy.
Pros and cons
DeepWiki
- Free with no login
- Fast way to learn a codebase
- MCP access for agents
- Public repos only for free
- Can miss recent changes
CARBON by testers.ai
- Core edition is free and MIT licensed
- Works inside agents you already use
- Broad framework and tracker support
- Needs a coding agent to run
- Team plans require at least 5 developers
- Requires Node.js 22+ for MCP setup
Which one should you choose?
Choose DeepWiki if you want:
- Free with no login
- Fast way to learn a codebase
- MCP access for agents
Watch out: public repos only for free.
Choose CARBON by testers.ai if you want:
- Core edition is free and MIT licensed
- Works inside agents you already use
- Broad framework and tracker support
Watch out: needs a coding agent to run.
DeepWiki vs CARBON by testers.ai FAQ
What is the difference between DeepWiki and CARBON by testers.ai?
DeepWiki: AI-generated wikis and Q&A for any public GitHub repo. CARBON by testers.ai: Open-source AI test manager that runs inside your coding agent. Both are coding tools.
Is DeepWiki or CARBON by testers.ai cheaper?
DeepWiki is completely free, while CARBON by testers.ai is freemium.
Do DeepWiki and CARBON by testers.ai have free plans?
DeepWiki: Yes, fully free. CARBON by testers.ai: Yes.
Who makes DeepWiki?
DeepWiki is made by Cognition, based in United States.
Who makes CARBON by testers.ai?
CARBON by testers.ai is made by testers.ai.
Which should I choose, DeepWiki or CARBON by testers.ai?
Choose DeepWiki if you value free with no login and fast way to learn a codebase. Choose CARBON by testers.ai if you value core edition is free and mit licensed and works inside agents you already use.