Aider vs. IBM Bob

Feature	Aider	IBM Bob

Tagline	AI pair programming in your terminal	Your AI SDLC (Software Development Lifecycle) partner from IBM
Website	https://aider.chat	https://bob.ibm.com
Language	python	javascript
Release Date	July 8, 2023	September 2, 2025
Last Updated	April 28, 2026	May 20, 2026
Provider Type	Independent	AI Lab
MCP Support	No	Yes
Multi-Agent Support	No	Yes
Git Integration	deep	deep
Multi-File Editing	Yes	Yes
Auto Test Running	Yes	Yes
Sandbox / Permissions	No	Yes
Image / Multimodal Input	Yes	Yes
Voice Mode	Yes	No
IDE Integration	VS Code, Neovim, Emacs	Bob IDE
Hooks / Extensions	Yes	Yes
Web Search	No	Yes
Local Model Support	Yes	No
Context Window	Model-dependent	Model-dependent
Supported Models	Claude Sonnet 4.5/4.6, Claude Opus 4.5/4.6, GPT-5.4, GPT-4o, DeepSeek, Gemini, Llama, Qwen	Multi-provider (IBM-managed)
Pricing Model	BYOK	Freemium
Free Tier	Yes	Yes
Price Range	Free (BYOK)	Free / $20-200/mo
Source Code Availability	Open Source (Apache-2.0)	Proprietary Software
Source Code	https://github.com/Aider-AI/aider	https://github.com/IBM/ibm-bob
Development State	active	active