Dify vs OpenCode vs Haystack vs OpenAI Codex CLI

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

Your tool
Dify
vs
Competitor 1
OpenCode
Competitor 2
Haystack
Competitor 3
OpenAI Codex CLI
Compare
4 tools · best value per row highlighted
Your tool Dify
dify.ai
AI apps without code
Remove
Competitor OpenCode
opencode.ai
OpenCode is an open-source AI coding agent that helps developers write code in the terminal, an IDE or a desktop app.
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 OpenAI Codex CLI
developers.openai.com
OpenAI Codex CLI brings the Codex coding agent to the terminal and to scripts.
Make main Remove
Traffic estimated monthly website traffic
Monthly visits
1Mvisits/mo
—
—
—
MoM change
▼ 16.6%
—
—
—
6-month growth
-30.6%
—
—
—
Global rank web
#39,510
—
—
—
Avg. last 3 months
1.1M
—
—
—
Bounce rate lower is better
41%
—
—
—
Pages / visit
4.4
—
—
—
Visit duration
6m 40s
—
—
—
Traffic sources
● Direct 84% · ● Referral 15%
—
—
—
DifyOpenCodeHaystackOpenAI Codex CLI
0368.2K736.4K1.1M1.5MDify · 1.1MDify · 1.2MDify · 1.3MDify · 1.1MDify · 1.5MDify · 1.2MDify · 1.1MDify · 1.2MDify · 1.2MDify · 1M1M10MDify · 1.1MDify · 1.2MDify · 1.3MDify · 1.1MDify · 1.5MDify · 1.2MDify · 1.1MDify · 1.2MDify · 1.2MDify · 1MNov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
Freemium
Free
—
Paid
Starting price
$590per month · free tier available
Free
—
—
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
DocumentsText
CodeText
CodeDocuments
CodeImagesText
Output
Apps
Code
Apps
Code
Skill level
Intermediate
Advanced
Advanced
Advanced
Categories
Chatbots & CompanionsDevelopment & CodeProductivity & OfficeAI Agent+4 more
Development & CodeAI Coding Assistant
Development & CodeProductivity & OfficeAI AgentAI Developer Tools
Development & CodeAI Coding Assistant
Tasks what each tool can do · 2 shared · core   partial
Tasks covered
9
6
7
4
Agents
Developer tools
Agent creation
–
–
Coding
–
–
LLM development
–
–
Development
–
–
Self hosted
–
–
No-code
–
–
–
RAG
–
–
–
Workflows
–
–
–
Chatbots
–
–
–
Agent memory
–
–
–
Local AI
–
–
–
Productivity
–
–
–
Terminal
–
–
–
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
–
–
–
–

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.