Codewhale vs. fx (by Vercel)

Feature	Codewhale	fx (by Vercel)

Tagline	Community-driven coding agent that runs a different model per role	Tiny, open, embeddable, native coding agent by Vercel.
Website	https://codewhale.net/	https://fx.sh
Language	rust	zig
Release Date	January 19, 2026	August 17, 2026
Last Updated	September 4, 2026	August 19, 2026
Provider Type	Independent	Independent
MCP Support	Yes	Yes
Multi-Agent Support	Yes	No
Git Integration	deep	basic
Multi-File Editing	Yes	Yes
Auto Test Running	Yes	No
Sandbox / Permissions	Yes	Yes
Image / Multimodal Input	Yes	Yes
Voice Mode	Yes	No
IDE Integration	Editors via ACP (registry submission pending)	None - Terminal only
Hooks / Extensions	Yes	No
Web Search	Yes	Yes
Local Model Support	Yes	Yes
Context Window	Model-dependent	Model-dependent
Supported Models	30+ providers: DeepSeek, Claude, GPT, Kimi, GLM, Qwen, Grok, Mistral, Xiaomi MiMo, Alibaba Model Studio, SiliconFlow, OpenCode Zen, Hugging Face; local via vLLM, SGLang, Ollama	All Vercel AI Gateway supported models, including OpenAI, Anthropic, Google, DeepSeek, z.AI, Moonshot, etc
Supported Subscriptions	ChatGPT SuperGrok	—
Pricing Model	Free, BYOK	Free, BYOK, Usage Based
Free Tier	Yes	No
Price Range	Free (BYOK)	0 - $20 / mo / Custom (Vercel AI Gateway)
Source Code Availability	Open Source (MIT)	Open Source (Apache-2.0)
Source Code	https://github.com/Hmbown/CodeWhale	https://github.com/vercel-labs/fx
Development State	active	active