Devin vs Gemini CLI: Side-by-Side Comparison 2026

Devin vs Gemini CLI comparison 2026. Side-by-side features, pricing & capabilities.

Devin is an AI agent from Cognition — fully autonomous ai software engineer. Gemini CLI is a CLI-based coding agent from Google — open-source ai agent for your terminal.

Devin

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

$20/mo · 3 plans

Gemini CLI

Open-source AI agent that runs in your terminal. Uses a ReAct loop with built-in tools for file operations, shell commands, web search, and MCP server support. Free with generous daily limits.

  • ✓ ReAct agentic loop
  • ✓ File operations and shell commands
  • ✓ Web search grounding
  • ✓ MCP server support
  • ✓ 1M token context window

Free / $19.99/mo · 4 plans

Feature Devin Gemini CLI
Category AgentCLI
Starting Price $20/mo Free
Model Family ProprietaryGemini
Documentation ✓ —
Open Source NoYes (Apache 2.0)

Pricing verified Mar 20, 2026. Devin pricing | Gemini CLI pricing

Share

Key Differences

  • Category: Devin is an AI agent; Gemini CLI is a CLI-based coding agent.
  • Free tier: Gemini CLI has a free tier; Devin does not.
  • Starting price: Devin starts at $20/mo; Gemini CLI starts at $19.99/mo.
  • Model family: Devin uses Proprietary; Gemini CLI uses Gemini.
  • Open source: Devin: No. Gemini CLI: Yes (Apache 2.0).
  • Bring your own key: Gemini CLI supports BYOK; Devin does not.
  • Platforms: Devin runs on Web; Gemini CLI runs on Linux, Windows, macOS.
  • Provider: Devin is built by Cognition; Gemini CLI is built by Google.

Which Should You Choose?

Choose Devin if you want fully autonomous engineering tasks with minimal supervision. Choose Gemini CLI if you want AI pair programming directly in your terminal. Read our full reviews to see which fits your workflow.

Share