Devin vs Jules: Side-by-Side Comparison 2026

Feature	Devin	Jules
Category	Agent	Agent
Starting Price	$20/mo	Free
Model Family	Proprietary	Gemini
Code Completion	—	—
Chat	✓	✓
Agentic Mode	✓	✓
Multi-File Editing	✓	✓
Terminal Commands	✓	✓
Git Integration	✓	✓
Supported IDEs	Web-based (VSCode-inspired interface)	GitHub (cloud-based)
Open Source	No	No

Overview

Devin is an AI agent from Cognition. Jules is an AI agent from Google. Both tools are actively maintained as of 2026.

Devin: What You Get

Autonomous AI coding agent by Cognition. Handles full development tasks end-to-end. Cognition also owns Windsurf, integrating IDE and agent workflows.

AI chat
Agentic mode
Multi-file editing
Terminal commands
Test generation
Debugging
Git integration
App generation
Deployment

Pricing: $20/mo. 3 plans available.

Jules: What You Get

Autonomous coding agent that integrates with GitHub to plan, execute, and verify code changes asynchronously. Runs tasks in isolated cloud VMs — start a task, close your laptop, and return to review the completed work.

Async task execution in cloud VMs
GitHub integration with PR creation
Task planning and verification
Jules CLI for terminal management
Jules API for programmatic access
File selector for scoped changes
Memory feature across sessions

Pricing: Free / $19.99/mo. 3 plans available.

Key Differences

Category: Devin is an AI agent, Jules is an AI agent.
Free tier: Jules has a free tier; Devin does not.
Model family: Devin uses Proprietary; Jules uses Gemini.

Which Should You Choose?

Choose Devin if you want Devin handles multi-step tasks independently. Choose Jules if you want Start coding tasks and return later to review completed work. Both tools are strong options — the right choice depends on your workflow and priorities.