OpenAI Codex CLI vs Haystack vs Claude Code vs OpenCode

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

Your tool
OpenAI Codex CLI
vs
Competitor 1
Haystack
Competitor 2
Claude Code
Competitor 3
OpenCode
Compare
4 tools · best value per row highlighted
Your tool OpenAI Codex CLI
developers.openai.com
OpenAI Codex CLI brings the Codex coding agent to the terminal and to scripts.
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Competitor Haystack
haystack.deepset.ai
Haystack is an open-source AI orchestration framework from deepset for building production-grade LLM applications and agents.
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Competitor Claude Code
claude.com
Every plan tier hits usage limits
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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.
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Traffic estimated monthly website traffic
Monthly visits
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123.5Mvisits/mo
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MoM change
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▼ 6.8%
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6-month growth
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+106.6%
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Global rank web
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#434
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Avg. last 3 months
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125.2M
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Bounce rate lower is better
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64%
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Pages / visit
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2.2
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Visit duration
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2m 36s
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Traffic sources
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● Direct 82% · ● Referral 15%
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OpenAI Codex CLIHaystackClaude CodeOpenCode
035M69.9M104.9M139.9MClaude Code · 19.2MClaude Code · 19.5MClaude Code · 35.8MClaude Code · 59.8MClaude Code · 139.9MClaude Code · 133.1MClaude Code · 119.5MClaude Code · 132.6MClaude Code · 123.5M10M100M1BClaude Code · 19.2MClaude Code · 19.5MClaude Code · 35.8MClaude Code · 59.8MClaude Code · 139.9MClaude Code · 133.1MClaude Code · 119.5MClaude Code · 132.6MClaude Code · 123.5MNov '25DecJan '26FebMarAprMayJunJul
Pricing
Model
Paid
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Freemium
Free
Starting price
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$17per month · free tier available
Free
Free tier
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Free trial
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API access
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Plans
GPT-6-Astra $10GPT-6.1-Sol $2GPT-6-Luna $0.10GPT-Live-1 $0.05/minute+1 more
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Free FreePro $17/moMax 5x $100/moMax 20x Custom/mo+2 more
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Capabilities input → output
Input
CodeImagesText
CodeDocuments
CodeText
CodeText
Output
Code
Apps
Code
Code
Skill level
Advanced
Advanced
Intermediate
Advanced
Categories
Development & CodeAI Coding Assistant
Development & CodeProductivity & OfficeAI AgentAI Developer Tools
Development & CodeProductivity & OfficeAI AgentAI Code Review+1 more
Development & CodeAI Coding Assistant
Tasks what each tool can do · 0 shared · core   partial
Tasks covered
2
5
6
3
Coding
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Developer tools
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Agents
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Development
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Agent creation
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LLM development
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Code analysis
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Code reviews
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Debugging
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Agent memory
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Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
no ratings yet
Upvotes
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Saves
0
0
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0
Reviews
0
0
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Prompts
0
0
2
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.