Charm Crush vs. OpenBlock

Feature	Charm Crush	OpenBlock

Tagline	Glamourous agentic coding for all	A self-improving coding agent that handles the full dev lifecycle
Website	https://charm.sh	https://openblocklabs.com/
Language	go	typescript
Release Date	July 29, 2025	March 16, 2026
Last Updated	April 28, 2026	May 14, 2026
Provider Type	Independent	Independent
MCP Support	Yes	Yes
Multi-Agent Support	Yes	Yes
Git Integration	deep	deep
Multi-File Editing	Yes	Yes
Auto Test Running	Yes	Yes
Sandbox / Permissions	Yes	Yes
Image / Multimodal Input	Yes	Yes
Voice Mode	No	No
IDE Integration	None - terminal only	None - Terminal onle
Hooks / Extensions	Yes	Yes
Web Search	Yes	Yes
Local Model Support	Yes	Yes
Context Window	Model-dependent	Model-dependent
Supported Models	All Crush-compatible models from Anthropic, OpenAI, Deepseek, Gemini, Groq, etc.	400+ via OpenRouter (Claude, GPT, Gemini, Grok, open-source)
Pricing Model	BYOK	Freemium
Free Tier	Yes	Yes
Price Range	Free (BYOK)	$10-100 (credit-based)
Source Code Availability	Open Source (FSL-1.1-MIT)	Proprietary Software
Source Code	https://github.com/charmbracelet/crush	N/A
Development State	active	active