Cursor vs Windsurf vs Copilot: Real ROI for Engineering Teams
GitClear found 39% more code churn after AI coding tool adoption. We break down the RAG mechanics, real benchmark data, and when these tools make engineers worse, not better.
14 min read
Cline (free to $20/mo) and Aider (free) undercut JetBrains on price. Switch if you need a free tier or want to avoid the $10 monthly entry fee.
Independently verified metrics. Sources: SWE-bench.com, HumanEval, vendor documentation. Verified 2026.
| Tool | SWE-bench% | HumanEval% | Autocompletems | Context Depthfiles |
|---|---|---|---|---|
| Aider | 18.9% | - | - | - |
| Cursor | 41.3% | 72.5% | 100 | 200 |
| GitHub Copilot | 26.7% | 67.3% | 120 | 30 |
Alternatives are not always the right move. JetBrains AI Assistant remains strong in these scenarios.
14 AI coding assistants compared. Developer experience, IDE integration, and codebase indexing quality vary widely.
Expert Take
JetBrains AI Assistant works well when automating routine, repetitive coding tasks within JetBrains IDEs where alternative plugins like Copilot frequently crash. The friction starts when you attempt complex agentic tasks, as its context awareness is limited and users have flagged issues with the plugin installing itself without permission. Before buying, compare vs Claude Code, which handles exponentially more complex agentic workflows.
Oleh KemFounder & Lead Analyst
Open-source autonomous AI coding agent for VS Code. Rated 4.8/5 vs 4.6/5 for JetBrains AI Assistant.

AI pair programmer in your terminal with Git integration. Rated 4.7/5 vs 4.6/5 for JetBrains AI Assistant.

A high-performance, multiplayer code editor written in Rust, with integrated AI for accelerated software development.. Rated 4.7/5 vs 4.6/5 for JetBrains AI Assistant.

An AI-native code editor that deeply understands your entire codebase to help you build, edit, and debug software faster.

An open-source AI coding assistant that connects your IDE to any LLM, including self-hosted models..

Enterprise AI coding assistant with deep codebase understanding.

AI pair programmer by GitHub and OpenAI that suggests code completions and entire functions in your IDE..

An AI toolkit that accelerates coding with intelligent autocomplete, in-editor chat, and broad IDE/language support..
Showing 8 of 14 alternatives
Local or on-premise deployment for sensitive codebases
JetBrains AI Assistant compared against all 14 ai coding tools alternatives. Pricing, free plan availability, rating, and ai coding tools-specific capabilities.
| Tool | Price | Free Plan | Rating |
|---|---|---|---|
| Pay-as-you-go | 4.6G2 | ||
| $20/mo | 4.8G2 | ||
| Free | 4.7G2 | ||
| $10/mo | 4.7G2 | ||
| $20/mo | 4.5G2 | ||
| $30/mo | 4.6G2 | ||
| $20/mo | No | 4.6G2 | |
| $10/mo | 4.5G2 | ||
| $20/mo | 4.6G2 | ||
| $25/mo | 4.6G2 | ||
| $20/mo | 4.6G2 | ||
| $20/mo | 4.5G2 | ||
| $25/mo | 4.4G2 | ||
| $19/mo | 4.2G2 | ||
| Pay-as-you-go | 4.1G2 |

Choose Cline if you need completely free and open source

Choose Aider if you need best terminal-based ai coding tool