Dify vs OpenAI Codex CLI vs Stack AI vs FastGPT

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

Your tool
Dify
vs
Competitor 1
OpenAI Codex CLI
Competitor 2
Stack AI
Competitor 3
FastGPT
Compare
4 tools · best value per row highlighted
Your tool Dify
dify.ai
AI apps without code
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 Stack AI
stack-ai.com
Connect AI models visually
Make main Remove
Competitor FastGPT
fastgpt.io
FastGPT is an open-source platform for building AI agents and knowledge-base applications.
Make main Remove
Traffic estimated monthly website traffic
Monthly visits
1Mvisits/mo
—
6.3Kvisits/mo
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MoM change
▼ 16.6%
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▼ 57.9%
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6-month growth
-30.6%
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-93.7%
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Global rank web
#39,510
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#1,700,092
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Avg. last 3 months
1.1M
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13.9K
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Bounce rate lower is better
41%
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39%
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Pages / visit
4.4
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1.8
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Visit duration
6m 40s
—
14s
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Traffic sources
● Direct 84% · ● Referral 15%
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DifyOpenAI Codex CLIStack AIFastGPT
0368.2K736.4K1.1M1.5MDify · 1.1MDify · 1.2MDify · 1.3MDify · 1.1MDify · 1.5MDify · 1.2MDify · 1.1MDify · 1.2MDify · 1.2MDify · 1MStack 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 · 6.3K1K10K100K1M10MDify · 1.1MDify · 1.2MDify · 1.3MDify · 1.1MDify · 1.5MDify · 1.2MDify · 1.1MDify · 1.2MDify · 1.2MDify · 1MStack 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
Paid
Freemium
Freemium
Starting price
$590per month · free tier available
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Free tier
CNY 99per month · free tier available
Free tier
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Free trial
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–
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API access
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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
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Free Edition FreeBasic Edition $99/moAdvanced Edition $599/moCustom Edition Custom
Capabilities input → output
Input
DocumentsText
CodeImagesText
DataDocumentsText
DocumentsTextWeb pages
Output
Apps
Code
Apps
Apps
Skill level
Intermediate
Advanced
Intermediate
Advanced
Categories
Chatbots & CompanionsDevelopment & CodeProductivity & OfficeAI Agent+4 more
Development & CodeAI Coding Assistant
Development & CodeProductivity & OfficeAI AgentAI Workflow+1 more
Chatbots & CompanionsEducation & LearningProductivity & OfficeAI Agent+2 more
Tasks what each tool can do · 1 shared · core   partial
Tasks covered
9
4
7
9
Agents
Agent creation
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Workflows
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No-code
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Chatbots
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Developer tools
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Coding
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Knowledge bases
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RAG
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Business automation
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Chatbot building
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LLM development
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Process automation
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Self hosted
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Customer support chatbot
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Development
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Finance workflow automation
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Productivity
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Terminal
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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
0
0
0
Verified listing
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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.