Codewhale vs. Mastra Code

Feature	Codewhale	Mastra Code

Tagline	Community-driven coding agent that runs a different model per role	Coding agent that replaces compaction with Observational Memory
Website	https://codewhale.net/	https://code.mastra.ai/
Language	rust	typescript
Release Date	January 19, 2026	December 24, 2025
Last Updated	September 4, 2026	September 4, 2026
Provider Type	Independent	Independent
MCP Support	Yes	Yes
Multi-Agent Support	Yes	Yes
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	Yes
IDE Integration	Editors via ACP (registry submission pending)	ACP (Agent Client Protocol)
Hooks / Extensions	Yes	Yes
Web Search	Yes	Yes
Local Model Support	Yes	Yes
Context Window	Model-dependent	Model-dependent; observation-based
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	Claude, GPT, Gemini and thousands more via Mastra's unified model router, plus custom OpenAI-compatible providers
Supported Subscriptions	ChatGPT SuperGrok	Claude Code ChatGPT GitHub Copilot SuperGrok
Pricing Model	Free, BYOK	Free, BYOK
Free Tier	Yes	Yes
Price Range	Free (BYOK)	Free (BYOK)
Source Code Availability	Open Source (MIT)	Open Source (Apache-2.0)
Source Code	https://github.com/Hmbown/CodeWhale	https://github.com/mastra-ai/mastra
Development State	active	active