OpenAI Codex CLI vs Gemini CLI vs Tendem

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

Your tool
OpenAI Codex CLI
vs
Competitor 1
Gemini CLI
Competitor 2
Tendem
Competitor 3
Suggested competitors for OpenAI Codex CLI: Qwen Code94% OpenCode94% Amp93% Google Antigravity93% opcode92% Cline92% Visual Studio Code91% JetBrains AI Assistant91%
Compare
3 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.
Remove
Competitor Gemini CLI
github.com
It can query and edit large codebases, generate new apps from PDFs, images, or sketches using multimodal input, and debug problems when you describe them in plain language.
Make main Remove
Competitor Tendem
tendem.ai
You describe what you need done and an AI system breaks it down into a plan
Make main Remove
Traffic estimated monthly website traffic
Monthly visits
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56.2Kvisits/mo
MoM change
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▼ 21.2%
6-month growth
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+19.7%
Global rank web
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#488,380
Avg. last 3 months
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65.4K
Bounce rate lower is better
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37%
Pages / visit
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2.4
Visit duration
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15s
Traffic sources
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● Direct 92% · ● Referral 4%
OpenAI Codex CLIGemini CLITendem
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
Free
Freemium
Starting price
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Free
Free tier
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 (personal Google account) Free
Free Credits $20
Capabilities input → output
Input
CodeImagesText
CodeDocumentsImagesText
DocumentsText
Output
Code
Code
DataDocumentsSlides
Skill level
Advanced
Advanced
Intermediate
Categories
Development & CodeAI Coding Assistant
Development & CodeAI Coding Assistant
Productivity & OfficeAI Agent
Tasks what each tool can do · 1 shared · core   partial
Tasks covered
4
6
8
Agents
Coding
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Developer tools
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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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Code analysis
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Debugging
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Development
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Logo ideas
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Sales prospecting
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Terminal
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–
Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
Upvotes
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▲ 0
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Saves
0
0
0
Reviews
0
0
0
Prompts
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.