Goose CLI vs Letta Code

Feature	Goose CLI	Letta Code
Tagline	An open source, extensible AI agent that goes beyond code suggestions	The memory-first coding agent
Website	https://block.github.io/goose/	https://letta.com
Language	rust	typescript
Release Date	December 4, 2024	December 16, 2025
Last Updated	June 28, 2026	August 19, 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	Yes
Sandbox / Permissions	Yes	Yes
Image / Multimodal Input	Yes	Yes
Voice Mode	Yes	No
IDE Integration	Cursor, VSCode, JetBrains IDEs	None - Terminal only
Hooks / Extensions	Yes	Yes
Web Search	Yes	Yes
Local Model Support	Yes	Yes
Context Window	Model-dependent	Model-dependent
Terminal Bench	#53 · 54.3% ±2.6 (Terminal-Bench 2.0) 1	#44 · 59.1% ±2.4 (Terminal-Bench 2.0) 2
Supported Models	Works with 25+ providers including Anthropic, OpenAI, xAI, Google, Mistral and works with 400+ models on OpenRouter.	Multi-provider with Claude, GPT, Gemini and self-hosted (BYOK).
Supported Subscriptions	Claude Code ChatGPT	ChatGPT GitHub Copilot Claude Code OpenCode Go / Zen
Pricing Model	BYOK	Freemium
Free Tier	Yes	Yes
Price Range	Free (BYOK)	Free (BYOK) / $20-200/mo
Source Code Availability	Open Source (Apache-2.0)	Open Source (Apache-2.0)
Source Code	https://github.com/aaif-goose/goose	c
Development State	active	active

¹ Goose CLI tested with Claude Opus 4.5 on Terminal-Bench 2.0.

² Letta Code tested with Claude Opus 4.5 on Terminal-Bench 2.0.