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M91 vs Yellow.ai

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

M91 compared with Yellow.ai
DetailM91 logo M91Yellow.ai logo Yellow.ai
What it doesHuman-in-the-loop approval for AI agents Enterprise AI agents for customer and employee experience automation
StageNot given Established
FoundedNot given 2016
Based inNot given US
Pricing modelFree Contact for pricing
PricingFree forever with all features included Free plan: 500 monthly chat sessions included, then $0.99 per resolution, with 1 AI agent, limited channels and features. Enterprise plan: Unlimited agents, sessions and channels (35+), plus 150+ integrations and all features. Custom pricing available.
Key features
  • Alerts on iPhone and Android with answer buttons
  • Phone call escalation for high and critical alerts
  • Breaks through silent mode and Do Not Disturb
  • Attachments and notes on every alert
  • Broadcast to a channel with one person taking ownership
  • See who acted and who ignored alerts
  • Answer buttons set by you or your AI
  • Callback webhooks to return answers to your code
  • Setup via pasted prompt or API key-free send link
  • Integration with AI frameworks, automation platforms and HTTP API
  • AI Agent Builder 2.0 for creating enterprise-ready agents in minutes
  • Multi-channel support including voice, chat, email and SMS
  • Conversational Knowledge Base with agentic RAG
  • AI Copilot for testing, debugging and optimization
  • Automated testing to ship reliable AI agents
  • 150+ pre-built integrations with enterprise systems
  • Multi-LLM architecture supporting 15+ LLMs
  • Advanced analytics for AI agent optimization
  • Enterprise security with HIPAA, ISO 27001, SOC 2 Type II and PCI-DSS compliance
  • Agent Assist and Safe AI for human-AI collaboration
What makes it different
  • Full-volume alerts that interrupt even when phone is silenced
  • No SDK, API key or card required to start
  • Free forever with every feature for every team member
  • Escalates to phone calls for critical alerts that go unanswered
  • Works with existing AI agents, workflows and monitoring tools
  • Agentic AI that thinks, acts and resolves autonomously across complex scenarios
  • No vendor lock-in with flexible multi-LLM architecture
  • Omnichannel orchestration maintaining full conversational context
  • Deploy in minutes with natural language prompts and low-code builder
  • Trusted by 650+ global brands with proven ROI and cost savings
Community votes00
DR (Domain Rating by Ahrefs)73 no change since last check74 no change since last check
Trust Flow (Majestic)117
Citation Flow (Majestic)146
Referring domains (Majestic)02209

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