Dify vs GitHub Copilot vs Haystack vs Stack AI

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

Your tool
Dify
vs
Competitor 1
GitHub Copilot
Competitor 2
Haystack
Competitor 3
Stack AI
Compare
4 tools · best value per row highlighted
Your tool Dify
dify.ai
AI apps without code
Remove
Competitor GitHub Copilot
github.com
Your AI pair programmer that actually knows the codebase
Make main Remove
Competitor Haystack
haystack.deepset.ai
Haystack is an open-source AI orchestration framework from deepset for building production-grade LLM applications and agents.
Make main Remove
Competitor Stack AI
stack-ai.com
Connect AI models visually
Make main Remove
Traffic estimated monthly website traffic
Monthly visits
1Mvisits/mo
637.9Mvisits/mo
—
6.3Kvisits/mo
MoM change
▼ 16.6%
▲ 3.7%
—
▼ 57.9%
6-month growth
-30.6%
+19.3%
—
-93.7%
Global rank web
#39,510
#49
—
#1,700,092
Avg. last 3 months
1.1M
629.7M
—
13.9K
Bounce rate lower is better
41%
36%
—
39%
Pages / visit
4.4
5.9
—
1.8
Visit duration
6m 40s
6m 26s
—
14s
Traffic sources
● Direct 84% · ● Referral 15%
● Direct 83% · ● Referral 15%
—
—
DifyGitHub CopilotHaystackStack AI
0159.5M318.9M478.4M637.9MDify · 1.1MDify · 1.2MDify · 1.3MDify · 1.1MDify · 1.5MDify · 1.2MDify · 1.1MDify · 1.2MDify · 1.2MDify · 1MGitHub Copilot · 484.3MGitHub Copilot · 504MGitHub Copilot · 542.6MGitHub Copilot · 534.8MGitHub Copilot · 634.3MGitHub Copilot · 631MGitHub Copilot · 636.1MGitHub Copilot · 615.2MGitHub Copilot · 637.9MStack AI · 143.4KStack AI · 153.7KStack AI · 167.9KStack AI · 160KStack AI · 99.4KStack AI · 35.9KStack AI · 17.4KStack AI · 20.6KStack AI · 14.9KStack AI · 6.3K1K10K100K1M10M100M1BDify · 1.1MDify · 1.2MDify · 1.3MDify · 1.1MDify · 1.5MDify · 1.2MDify · 1.1MDify · 1.2MDify · 1.2MDify · 1MGitHub Copilot · 484.3MGitHub Copilot · 504MGitHub Copilot · 542.6MGitHub Copilot · 534.8MGitHub Copilot · 634.3MGitHub Copilot · 631MGitHub Copilot · 636.1MGitHub Copilot · 615.2MGitHub Copilot · 637.9MStack AI · 143.4KStack AI · 153.7KStack AI · 167.9KStack AI · 160KStack AI · 99.4KStack AI · 35.9KStack AI · 17.4KStack AI · 20.6KStack AI · 14.9KStack AI · 6.3KNov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
Freemium
Freemium
—
Freemium
Starting price
$590per month · free tier available
$4per month · free tier available
—
Free tier
Free tier
–
Free trial
–
–
API access
–
–
Plans
Sandbox FreeProfessional $590/yrTeam $1,590/yrEnterprise Custom
Free FreeTeam $4/moEnterprise $21/mo
—
—
Capabilities input → output
Input
DocumentsText
CodeText
CodeDocuments
DataDocumentsText
Output
Apps
Code
Apps
Apps
Skill level
Intermediate
Intermediate
Advanced
Intermediate
Categories
Chatbots & CompanionsDevelopment & CodeProductivity & OfficeAI Agent+4 more
Development & CodeProductivity & OfficeAI AgentAI Code Review+1 more
Development & CodeProductivity & OfficeAI AgentAI Developer Tools
Development & CodeProductivity & OfficeAI AgentAI Workflow+1 more
Tasks what each tool can do · 1 shared · core   partial
Tasks covered
9
4
5
5
Agents
Agent creation
–
No-code
–
–
Workflows
–
–
LLM development
–
–
Developer tools
–
–
Coding
–
–
–
Chatbots
–
–
–
Code reviews
–
–
–
Agent management
–
–
–
Agent memory
–
–
–
Development
–
–
–
Finance workflow automation
–
–
–
Productivity
–
–
–
Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
no ratings yet
Upvotes
▲ 1
▲ 0
▲ 0
▲ 0
Saves
0
0
0
0
Reviews
0
0
0
0
Prompts
0
2
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.