OpenCode vs OpenAI Codex CLI vs Functionize vs Amp

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

Your tool
OpenCode
vs
Competitor 1
OpenAI Codex CLI
Competitor 2
Functionize
Competitor 3
Amp
Compare
4 tools · best value per row highlighted
Your tool 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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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 Functionize
functionize.com
Functionize is an agentic quality platform whose Studio product builds, runs and maintains tests against your live application.
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Competitor Amp
ampcode.com
Amp is a coding agent and development environment for engineers who want agents running independently.
Make main Remove
Traffic estimated monthly website traffic
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6-month growth
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Global rank web
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Bounce rate lower is better
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Pages / visit
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Pricing
Model
Free
Paid
Freemium
Freemium
Starting price
Free
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$20per month · free tier available
$20per month · free tier available
Free tier
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Free trial
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API access
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Plans
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GPT-6-Astra $10GPT-6.1-Sol $2GPT-6-Luna $0.10GPT-Live-1 $0.05/minute+1 more
Free FreeGrowth $20/moScale $100/moEnterprise Custom
Hobby FreeIndividual (Megawatt) $20/moGigawatt CustomTeams Custom+1 more
Capabilities input → output
Input
CodeText
CodeImagesText
TextWeb pages
CodeTextVideo
Output
Code
Code
Data
Code
Skill level
Advanced
Advanced
Advanced
Advanced
Categories
Development & CodeAI Coding Assistant
Development & CodeAI Coding Assistant
Development & CodeAI Testing
Development & CodeAI Coding Assistant
Tasks what each tool can do · 0 shared · core   partial
Tasks covered
2
2
5
2
Coding
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Developer tools
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Test automation
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Testing
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Developer assistance
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Test creation
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Test generation
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Test cases
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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
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Reviews
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Prompts
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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.