Stack AI vs Dify vs OpenAI Codex CLI vs Haystack

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

Your tool
Stack AI
vs
Competitor 1
Dify
Competitor 2
OpenAI Codex CLI
Competitor 3
Haystack
Compare
4 tools · best value per row highlighted
Your tool Stack AI
stack-ai.com
Connect AI models visually
Remove
Competitor Dify
dify.ai
AI apps without code
Make main Remove
Competitor OpenAI Codex CLI
developers.openai.com
OpenAI Codex CLI brings the Codex coding agent to the terminal and to scripts.
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
Traffic estimated monthly website traffic
Monthly visits
6.3Kvisits/mo
1Mvisits/mo
—
—
MoM change
▼ 57.9%
▼ 16.6%
—
—
6-month growth
-93.7%
-30.6%
—
—
Global rank web
#1,700,092
#39,510
—
—
Avg. last 3 months
13.9K
1.1M
—
—
Bounce rate lower is better
39%
41%
—
—
Pages / visit
1.8
4.4
—
—
Visit duration
14s
6m 40s
—
—
Traffic sources
—
● Direct 84% · ● Referral 15%
—
—
Stack AIDifyOpenAI Codex CLIHaystack
0368.2K736.4K1.1M1.5MStack 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 · 6.3KDify · 1.1MDify · 1.2MDify · 1.3MDify · 1.1MDify · 1.5MDify · 1.2MDify · 1.1MDify · 1.2MDify · 1.2MDify · 1M1K10K100K1M10MStack 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 · 6.3KDify · 1.1MDify · 1.2MDify · 1.3MDify · 1.1MDify · 1.5MDify · 1.2MDify · 1.1MDify · 1.2MDify · 1.2MDify · 1MNov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
Freemium
Freemium
Paid
—
Starting price
Free tier
$590per month · free tier available
—
—
Free tier
–
–
Free trial
–
–
–
API access
–
–
Plans
—
Sandbox FreeProfessional $590/yrTeam $1,590/yrEnterprise Custom
GPT-6-Astra $10GPT-6.1-Sol $2GPT-6-Luna $0.10GPT-Live-1 $0.05/minute+1 more
—
Capabilities input → output
Input
DataDocumentsText
DocumentsText
CodeImagesText
CodeDocuments
Output
Apps
Apps
Code
Apps
Skill level
Intermediate
Intermediate
Advanced
Advanced
Categories
Development & CodeProductivity & OfficeAI AgentAI Workflow+1 more
Chatbots & CompanionsDevelopment & CodeProductivity & OfficeAI Agent+4 more
Development & CodeAI Coding Assistant
Development & CodeProductivity & OfficeAI AgentAI Developer Tools
Tasks what each tool can do · 1 shared · core   partial
Tasks covered
7
9
4
7
Agents
Agent creation
–
Developer tools
–
No-code
–
–
Workflows
–
–
LLM development
–
–
Coding
–
–
–
RAG
–
–
–
Business automation
–
–
–
Chatbots
–
–
–
Process automation
–
–
–
Agent memory
–
–
–
Development
–
–
–
Finance workflow automation
–
–
–
Productivity
–
–
–
Self hosted
–
–
–
Terminal
–
–
–
Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
no ratings yet
Upvotes
▲ 0
▲ 1
▲ 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.