OpenAI Codex CLI vs Tendem vs OpenCode vs JetBrains AI Assistant

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

Your tool
OpenAI Codex CLI
vs
Competitor 1
Tendem
Competitor 2
OpenCode
Competitor 3
JetBrains AI Assistant
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 Tendem
tendem.ai
You describe what you need done and an AI system breaks it down into a plan
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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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Competitor JetBrains AI Assistant
jetbrains.com
JetBrains AI Assistant brings AI chat, coding agents and code completion directly into JetBrains IDEs.
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Traffic estimated monthly website traffic
Monthly visits
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56.2Kvisits/mo
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MoM change
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▼ 21.2%
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6-month growth
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+19.7%
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Global rank web
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#488,380
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Avg. last 3 months
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65.4K
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Bounce rate lower is better
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37%
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Pages / visit
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2.4
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Visit duration
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15s
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Traffic sources
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● Direct 92% · ● Referral 4%
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OpenAI Codex CLITendemOpenCodeJetBrains AI Assistant
017.8K35.7K53.5K71.3KTendem · 18.2KTendem · 38.1KTendem · 42KTendem · 47KTendem · 44.8KTendem · 49KTendem · 68.7KTendem · 71.3KTendem · 56.2K10K100KTendem · 18.2KTendem · 38.1KTendem · 42KTendem · 47KTendem · 44.8KTendem · 49KTendem · 68.7KTendem · 71.3KTendem · 56.2KDec '25Jan '26FebMarAprMayJunJulAug
Pricing
Model
Paid
Freemium
Free
Freemium
Starting price
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Free tier
Free
€8.33per month · free tier available
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
Free Credits $20
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AI Free FreeAI Pro (individual) €100/yrAI Pro (organization) €200/yr
Capabilities input → output
Input
CodeImagesText
DocumentsText
CodeText
CodeText
Output
Code
DataDocumentsSlides
Code
Code
Skill level
Advanced
Intermediate
Advanced
Intermediate
Categories
Development & CodeAI Coding Assistant
Productivity & OfficeAI Agent
Development & CodeAI Coding Assistant
Development & CodeAI Coding Assistant
Tasks what each tool can do · 1 shared · core   partial
Tasks covered
4
8
6
5
Agents
Coding
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Developer tools
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Code autocompletion
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Lead generation
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Market research
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Pitch decks
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Advertising creatives
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Brand identity
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Development
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Local AI
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Logo ideas
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MCP
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Sales prospecting
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Self hosted
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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
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Saves
0
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Reviews
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Prompts
0
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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.