OpenAI Codex CLI vs opcode vs Codespell vs Gemini CLI

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

Your tool
OpenAI Codex CLI
vs
Competitor 1
opcode
Competitor 2
Codespell
Competitor 3
Gemini CLI
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.
Remove
Competitor opcode
opcode.sh
opcode is a free, open-source desktop application that gives Anthropic's command-line coding agent a graphical interface.
Make main Remove
Competitor Codespell
codespell.ai
CodeSpell, recently rebranded as SoftSpell, operates as an IDE-integrated coding assistant that generates code and documentation through a combination of inline suggestions and chat-based interactions
Make main 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
Traffic estimated monthly website traffic
Monthly visits
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MoM change
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▼ 53.3%
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6-month growth
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Global rank web
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#9,819,950
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Avg. last 3 months
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1.6K
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Bounce rate lower is better
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0%
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Pages / visit
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Visit duration
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Traffic sources
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OpenAI Codex CLIopcodeCodespellGemini CLI
01.1K2.3K3.4K4.6KCodespell · 4.6KCodespell · 3.9KCodespell · 3.2KCodespell · 1.5K1K10KCodespell · 4.6KCodespell · 3.9KCodespell · 3.2KCodespell · 1.5KJan '26FebMarApr
Pricing
Model
Paid
Free
Free Trial
Free
Starting price
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Free
$12per month
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
Open source Free
Starter $12/moGrowth $20/moEnterprise Custom
Free (personal Google account) Free
Capabilities input → output
Input
CodeImagesText
CodeText
CodeText
CodeDocumentsImagesText
Output
Code
Code
CodeDocuments
Code
Skill level
Advanced
Advanced
Intermediate
Advanced
Categories
Development & CodeAI Coding Assistant
Development & CodeAI Coding AssistantAI Developer Tools
Development & CodeAI Coding AssistantAI Testing
Development & CodeAI Coding Assistant
Tasks what each tool can do · 1 shared · core   partial
Tasks covered
4
6
9
6
Coding
Agents
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Developer tools
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Development
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Modernization
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Agent creation
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Code analysis
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Code autocompletion
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Code documentation
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Debugging
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MCP
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Self hosted
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Terminal
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Test automation
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Test cases
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Test creation
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Testing
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Community on aitoolstime
Rating
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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.