Mastra Code vs. Ralph TUI

Feature	Mastra Code	Ralph TUI

Tagline	Coding agent that replaces compaction with Observational Memory	AI agent loop orchestrator for terminal
Website	https://code.mastra.ai/	https://ralph-tui.com
Language	typescript	typescript
Release Date	December 24, 2025	January 14, 2026
Last Updated	September 4, 2026	August 19, 2026
Provider Type	Independent	Independent
MCP Support	Yes	Yes
Multi-Agent Support	Yes	Yes
Git Integration	basic	deep integration with git worktrees
Multi-File Editing	Yes	Yes
Auto Test Running	No	No
Sandbox / Permissions	Yes	Yes
Image / Multimodal Input	Yes	Yes
Voice Mode	Yes	No
IDE Integration	ACP (Agent Client Protocol)	None - Terminal only
Hooks / Extensions	Yes	No
Web Search	Yes	Yes
Local Model Support	Yes	Yes
Context Window	Model-dependent; observation-based	Depends on underlying agent
Supported Models	Claude, GPT, Gemini and thousands more via Mastra's unified model router, plus custom OpenAI-compatible providers	Orchestrates Coding Agents: Claude Code, OpenCode, Gemini CLI, Codex, Kiro, Droid, Cursor CLI.
Supported Subscriptions	Claude Code ChatGPT GitHub Copilot SuperGrok	—
Pricing Model	Free, BYOK	BYOK
Free Tier	Yes	Yes
Price Range	Free (BYOK)	Free (BYOK)
Source Code Availability	Open Source (Apache-2.0)	Open Source (MIT)
Source Code	https://github.com/mastra-ai/mastra	https://github.com/subsy/ralph-tui
Development State	active	active