Mastra Code vs. OpenCode

Feature	Mastra Code	OpenCode

Tagline	Coding agent that replaces compaction with Observational Memory	The open source AI coding agent built for the terminal
Website	https://code.mastra.ai/	https://opencode.ai
Language	typescript	typescript
Release Date	December 24, 2025	May 14, 2025
Last Updated	September 4, 2026	June 28, 2026
Provider Type	Independent	Independent
MCP Support	Yes	Yes
Multi-Agent Support	Yes	Yes
Git Integration	basic	basic
Multi-File Editing	Yes	Yes
Auto Test Running	No	Yes
Sandbox / Permissions	Yes	Yes
Image / Multimodal Input	Yes	Yes
Voice Mode	Yes	No
IDE Integration	ACP (Agent Client Protocol)	VS Code, Cursor
Hooks / Extensions	Yes	Yes
Web Search	Yes	Yes
Local Model Support	Yes	Yes
Context Window	Model-dependent; observation-based	Model-dependent; auto-compact
Terminal Bench 2.0		#66 · 51.7% ²
Supported Models	Claude, GPT, Gemini and thousands more via Mastra's unified model router, plus custom OpenAI-compatible providers	OpenCode managed models, 400+ AI models from OpenRouter - OpenAI, Google, Moonshot AI, xAI, Minimax
Supported Subscriptions	Claude Code ChatGPT GitHub Copilot SuperGrok	ChatGPT SuperGrok GitHub Copilot OpenCode Go / Zen Ollama Cloud
Pricing Model	Free, BYOK	Freemium
Free Tier	Yes	Yes
Price Range	Free (BYOK)	Free (BYOK) / $10/mo
Source Code Availability	Open Source (Apache-2.0)	Open Source (MIT)
Source Code	https://github.com/mastra-ai/mastra	https://github.com/anomalyco/opencode
Development State	active	active