fx (by Vercel) vs. Jules CLI

Feature	fx (by Vercel)	Jules CLI

Tagline	Tiny, open, embeddable, native coding agent by Vercel.	Google's async coding agent in your terminal
Website	https://fx.sh	https://jules.google
Language	zig	typescript
Release Date	August 17, 2026	May 20, 2025
Last Updated	August 19, 2026	April 28, 2026
Provider Type	Independent	AI Lab
MCP Support	Yes	Yes
Multi-Agent Support	No	Yes
Git Integration	minimal	deep
Multi-File Editing	Yes	Yes
Auto Test Running	No	Yes
Sandbox / Permissions	Yes	Yes
Image / Multimodal Input	Yes	Yes
Voice Mode	No	No
IDE Integration		None - terminal only
Hooks / Extensions	No	Yes
Web Search	Yes	Yes
Local Model Support	Yes	No
Context Window	Model dependent	1M tokens
Supported Models	All Vercel AI Gateway supported models, including OpenAI, Anthropic, Google, DeepSeek, z.AI, Moonshot, etc	Gemini models only
Pricing Model	Free, BYOK, Usage Based	Freemium
Free Tier	No	Yes
Price Range	0 - $20 / mo / Custom (Vercel AI Gateway)	Free (15 tasks/day) / $20-125/mo
Source Code Availability	Open Source (Apache-2.0)	Proprietary Software
Source Code	https://github.com/vercel-labs/fx	N/A
Development State	active	active