JetBrains AI vs OpenAI Codex: Features, Pricing and User Reviews 2026
Compare features, pricing, reviews, and more to make an informed decision
JetBrains AI
JetBrains AI is an intelligent coding assistant that provides code completion, AI chat, and an agent named Junie directly in JetBrains IDEs.
OpenAI Codex
OpenAI Codex is an AI-powered coding assistant that writes, tests, and reviews code in your development environment and cloud.
JetBrains AI
JetBrains AI is an intelligent coding assistant that provides code completion, AI chat, and an agent named Junie directly in JetBrains IDEs.
OpenAI Codex
OpenAI Codex is an AI-powered coding assistant that writes, tests, and reviews code in your development environment and cloud.
JetBrains AI
Unlimited local code completion
AI-powered chat assistance
Junie autonomous coding agent
Support for GPT-4, Claude, Gemini models
Multi-file editing capabilities
Local and cloud model options
Code explanation and documentation
Test generation and debugging help
Screenshot and image analysis
Next edit suggestions
Model Context Protocol support
Enterprise security features
OpenAI Codex
Writes code, fixes bugs, and adds tests
Works in terminal, IDE, cloud, and mobile
Automatic pull request reviews on GitHub
Runs multiple tasks at the same time
Provides detailed logs and test results
Supports custom setup through AGENTS.md files
Secure isolated environment for each task
Integrates with VS Code, Cursor, and Windsurf
Background cloud processing
Mobile app support for task management
JetBrains AI
JetBrains AI offers flexible pricing to match different needs and usage levels. The free tier includes unlimited code completion and local AI support, plus 3 AI credits per month for cloud features. This is perfect for getting started or occasional use.
AI Pro costs $10 per month or $100 per year and provides 10 AI credits monthly with the ability to add more credits anytime. This tier gives access to advanced models and extensive AI chat usage, plus the ability to try Junie.
AI Ultimate is $30 per month or $300 per year with 35 AI credits monthly, recommended for frequent Junie users who work with coding agents regularly.
AI Enterprise at $60 per month or $720 per year offers maximum credits, enterprise security features, and custom AI integrations for organizations.
The All Products Pack includes AI Pro along with 11 JetBrains IDEs for $29.90 per month, and dotUltimate includes AI Pro with .NET tools for $21.90 per month. Both offer better value if you need multiple JetBrains products.
OpenAI Codex
OpenAI Codex is included as part of your ChatGPT subscription and does not require a separate purchase. It is available across multiple plan levels, each with different usage limits.
ChatGPT Plus costs $20 per month and includes Codex with usage limits that allow about 30 to 150 local messages or 5 to 40 cloud tasks every 5 hours. This plan is best for developers working on a few focused coding sessions each week.
ChatGPT Pro costs $200 per month and provides significantly higher limits, allowing about 300 to 1,500 local messages or 50 to 400 cloud tasks every 5 hours. This plan suits developers who need Codex throughout their full workday across multiple projects.
Business, Education, and Enterprise plans include the same per-seat limits as Plus. However, plans with flexible pricing can purchase additional credits to go beyond included limits. For automatic pull request reviews on all repositories, flexible pricing is required.