Aider vs Windsurf

as AI assistants see them, week of 2026-10-12

brag about it: X · LinkedIn

Aider and Windsurf come out nearly even overall, scoring 22 and 25 out of 100, and getting named in 27 and 28 of 70 answers. Aider stands out for local, privacy-focused and terminal-based use, named in 3 of 3 answers for both, plus every open-source question (3 of 3), and it scores highest with Claude at 45. Windsurf leans toward general "top assistant" and "best editor" questions, named in 4 of 4 answers each time, with Gemini rating it highest at 54. Head-to-head, Windsurf was named more often in 9 questions, Aider in 7, with 4 ties.

Head to head

metric	Aider	Windsurf
score	23	21
questions won	19	15

By assistant

Aider

assistant	score	named in, this week	usual spot, this week
ChatGPT	15	25% of answers	#3.8
Claude	45	75% of answers	#5.8
Gemini	15	36% of answers	#9.0
Perplexity	16	26% of answers	#5.0

Windsurf

assistant	score	named in, this week	usual spot, this week
ChatGPT	12	20% of answers	#5.0
Claude	25	40% of answers	#6.1
Gemini	41	45% of answers	#5.4
Perplexity	16	11% of answers	#4.0

Where they differ

Only Aider gets named for

What's the best open-source AI coding assistant?
What's the best AI coding assistant that works in the terminal?
What are the best alternatives to Windsurf?
What's the best AI coding assistant I can run locally for privacy?
What's the best AI coding assistant for a solo developer building a SaaS?
Which AI coding assistant is best for large codebases?
Which AI coding tool is best for writing tests?

Only Windsurf gets named for

What are the best alternatives to Aider?
What's the best AI tool for writing and fixing React and Next.js code?
What's the best AI coding assistant for VS Code?

More comparisons

Not sold on either?

Scores count how often each assistant names a product, weighted by position. How the score works · Full AI coding assistants leaderboard