Fern vs Lambda vs ReadMe vs DeepWiki

Which one fits you in 2026? Traffic, pricing, input → output, tasks and community side by side.

Your tool
Fern
vs
Competitor 1
Lambda
Competitor 2
ReadMe
Competitor 3
DeepWiki
Compare
4 tools · best value per row highlighted
Your tool Fern
buildwithfern.com
Fern is a developer platform that produces documentation websites, client libraries and a command-line interface for an API from one definition.
Remove
Competitor Lambda
lambda.ai
Lambda is a GPU cloud built for training and serving AI models.
Make main Remove
Competitor ReadMe
readme.com
ReadMe builds interactive API documentation that developers can read, test and search.
Make main Remove
Competitor DeepWiki
deepwiki.com
DeepWiki scans repositories and builds indexes you can talk to
Make main Remove
Traffic estimated monthly website traffic
Monthly visits
—
—
—
957.2Kvisits/mo
MoM change
—
—
—
▼ 2.5%
6-month growth
—
—
—
-29.9%
Global rank web
—
—
—
#63,286
Avg. last 3 months
—
—
—
998K
Bounce rate lower is better
—
—
—
57%
Pages / visit
—
—
—
2.3
Visit duration
—
—
—
2m 42s
Traffic sources
—
—
—
● Direct 80% · ● Referral 19%
FernLambdaReadMeDeepWiki
0341.2K682.3K1M1.4MDeepWiki · 1.2MDeepWiki · 1.2MDeepWiki · 1.3MDeepWiki · 1.3MDeepWiki · 1.4MDeepWiki · 1.3MDeepWiki · 1.2MDeepWiki · 1.1MDeepWiki · 981.8KDeepWiki · 957.2K100K1M10MDeepWiki · 1.2MDeepWiki · 1.2MDeepWiki · 1.3MDeepWiki · 1.3MDeepWiki · 1.4MDeepWiki · 1.3MDeepWiki · 1.2MDeepWiki · 1.1MDeepWiki · 981.8KDeepWiki · 957.2KNov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
—
Paid
Freemium
Free
Starting price
—
—
$250per month · free tier available
Free
Free tier
–
–
Free trial
–
–
–
API access
–
–
Plans
—
On-demand instances (8x GPU) CustomOn-demand instances (1x GPU) Custom1-Click Clusters CustomReserved / Superclusters Custom
Starter FreePro $250/moEnterprise Custom
—
Capabilities input → output
Input
Code
CodeData
DocumentsTextWeb pages
CodeWeb pages
Output
AppsCode
Apps
DocumentsText
Text
Skill level
Advanced
Advanced
Intermediate
Advanced
Categories
Development & CodeAI Developer Tools
Development & CodeAI Developer Tools
Development & CodeEducation & LearningAI Developer ToolsAI Knowledge Management
Development & CodeAI Developer Tools
Tasks what each tool can do · 1 shared · core   partial
Tasks covered
6
3
6
4
Developer tools
Code documentation
–
API docs
–
–
MCP
–
–
Codebase q a
–
–
–
GPU infrastructure
–
–
–
GitHub
–
–
–
AI search
–
–
–
APIs
–
–
–
Changelogs
–
–
–
Knowledge bases
–
–
–
Model training
–
–
–
Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
no ratings yet
Upvotes
▲ 0
▲ 0
▲ 0
▲ 0
Saves
0
0
0
0
Reviews
0
0
0
0
Prompts
0
0
0
0
Verified listing
–
–
–
–

Traffic figures are third-party estimates for the tool's own domain; tools sharing a domain with a bigger product are not counted. Pricing is captured from each tool's site and may lag.