OpenAI Codex CLI vs MostlyAI 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
MostlyAI
Competitor 2
JetBrains AI Assistant
Competitor 3
Suggested competitors for OpenAI Codex CLI: Gemini CLI96% OpenCode94% Qwen Code94% Amp93% Google Antigravity93% opcode92% Cline92% Visual Studio Code91%
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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.
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Competitor MostlyAI
mostly.ai
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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.
Make main Remove
Traffic estimated monthly website traffic
Monthly visits
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43.5Kvisits/mo
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MoM change
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▼ 22.5%
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6-month growth
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-35.7%
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Global rank web
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#791,007
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Avg. last 3 months
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55.6K
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Bounce rate lower is better
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39%
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Pages / visit
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1.8
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Visit duration
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22s
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Traffic sources
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OpenAI Codex CLIMostlyAIJetBrains AI Assistant
022.2K44.4K66.6K88.7KMostlyAI · 76.8KMostlyAI · 88.7KMostlyAI · 87.8KMostlyAI · 67.7KMostlyAI · 61.8KMostlyAI · 56.7KMostlyAI · 67.3KMostlyAI · 56.1KMostlyAI · 43.5K10K100KMostlyAI · 76.8KMostlyAI · 88.7KMostlyAI · 87.8KMostlyAI · 67.7KMostlyAI · 61.8KMostlyAI · 56.7KMostlyAI · 67.3KMostlyAI · 56.1KMostlyAI · 43.5KNov '25DecJan '26FebMarAprMayJunJul
Pricing
Model
Paid
Free
Freemium
Starting price
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Free
€8.33per month · free tier available
Free tier
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Free trial
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–
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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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AI Free FreeAI Pro (individual) €100/yrAI Pro (organization) €200/yr
Capabilities input → output
Input
CodeImagesText
DataText
CodeText
Output
Code
Data
Code
Skill level
Advanced
Advanced
Intermediate
Categories
Development & CodeAI Coding Assistant
Development & CodeResearch & AnalyticsAI Developer ToolsAI For Data Analytics
Development & CodeAI Coding Assistant
Tasks what each tool can do · 1 shared · core   partial
Tasks covered
4
6
5
Developer tools
Coding
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Agents
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Code autocompletion
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Synthetic data
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Data analysis
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Data anonymization
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Data privacy compliance
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Data science
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MCP
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Terminal
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Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
Upvotes
▲ 0
▲ 0
▲ 0
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.