Letta Code vs VT Code

Feature	Letta Code	VT Code

Tagline	The memory-first coding agent	Semantic AI coding agent with LLM-native code understanding
Website	https://letta.com	https://github.com/vinhnx/vtcode
Language	typescript	rust
Release Date	December 16, 2025	September 12, 2025
Last Updated	August 19, 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	Yes	No
Sandbox / Permissions	Yes	Yes
Image / Multimodal Input	Yes	Yes
Voice Mode	No	No
IDE Integration	None - Terminal only	VS Code, Zed, Cursor, Windsurf
Hooks / Extensions	Yes	Yes
Web Search	Yes	Yes
Local Model Support	Yes	Yes
Context Window	Model-dependent	Model-dependent; auto-summarization
Terminal Bench	#44 · 59.1% ±2.4 (Terminal-Bench 2.0) ¹
Supported Models	Multi-provider with Claude, GPT, Gemini and self-hosted (BYOK).	API compatible models for OpenAI, Anthropic, Google, xAI, DeepSeek, Z.AI, Ollama, LM Studio and 400+ models on OpenRouter
Supported Subscriptions	ChatGPT GitHub Copilot Claude Code OpenCode Go / Zen	GitHub Copilot ChatGPT
Pricing Model	Freemium	BYOK
Free Tier	Yes	Yes
Price Range	Free (BYOK) / $20-200/mo	Free (BYOK)
Source Code Availability	Open Source (Apache-2.0)	Open Source (MIT)
Source Code	c	https://github.com/vinhnx/vtcode
Development State	active	active