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Head-to-head · Conversational AI Platforms

Amazon Lex vs Yellow.ai

  • Updated Oct 2026
  • Both researched from official sources
  • 1 check side by side
Higher score Amazon Lex #1 in Conversational AI Platforms 9.2/10 Paid ✓ 0 of 3 features Visit Amazon Lex
Yellow.ai #8 in Conversational AI Platforms 8.1/10 Free plan Free plan✓ 0 of 3 features Visit Yellow.ai

Amazon Lex leads on 0 checks, Yellow.ai on 1, and 0 are even. Who comes out ahead on the 1 yes/no, price and count check where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreAmazon Lex · 9.2/10
  • Free planonly Yellow.ai

Amazon Lex scores higher on our rubric for conversational ai platforms: 9.2 against 8.1 out of 10; our editors rank them #1 and #8.

Yellow.ai offers free plan; Amazon Lex doesn't.

Amazon Lex is the better fit for AWS teams building multichannel conversational bots. Yellow.ai is the better fit for mid-market and enterprise service teams.

  • Amazon Lex fits best

    AWS teams building multichannel conversational bots

  • Yellow.ai fits best

    Mid-market and enterprise service teams

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Side by side

Feature Amazon Lex 9.2/10 Visit ↗ Yellow.ai 8.1/10 Visit ↗
At a glance
Editor score 9.2 8.1
Ranking #1 in Conversational AI Platforms #8 in Conversational AI Platforms
Best for AWS teams building multichannel conversational bots Mid-market and enterprise service teams
Pricing model Paid Free plan + paid
Starting price $0.00075/unit usage-based —
Free plan — ✓ (best)
Free trial — —
Deployment Cloud Cloud, Mobile
Platforms Web Web, iOS, Android
Support Docs Email, Community, Docs
Integrations 12 integrations 150+ integrations
Built for Mid-market, Enterprise Enterprise, Mid-market
Features Amazon Lex 0/3 · Yellow.ai 0/3
Voice channel Not checked yet Not checked yet
Generative AI Not checked yet Not checked yet
Human handoff Not checked yet Not checked yet
Specs
Chat channels Not checked yet Not checked yet
Languages Not checked yet Not checked yet
Deployment options Not checked yet Not checked yet
Our review
Pros
  • Combines speech recognition, language understanding, and multi-turn dialogue.
  • Offers visual and generative-AI-assisted bot creation options.
  • Deploys across messaging, web, mobile, and contact-center environments.
  • Visual builder and AI-assisted workflow generation support agent creation.
  • Knowledge sources include documents, websites, URLs, and third-party content.
  • Agents can span chat, voice, email, and messaging with human escalation.
Cons
  • Usage-based charges span separate text, speech, and design rates.
  • Business logic and knowledge answers rely on AWS integrations.
  • The published support channel is documentation.
  • The Free plan includes 500 chat sessions per month.
  • The Free plan has limited channels and features.
  • Enterprise pricing requires contacting sales.
Our verdict

Amazon Lex helps teams build, test, publish, and monitor conversational interfaces using voice and text. It is aimed at mid-market and enterprise teams, particularly AWS-centered groups that need bots across web, mobile, messaging, or…

Read the review →

Yellow.ai helps teams build conversational AI agents for customer and employee service, sales, onboarding, and workflow automation. Its visual drag-and-drop builder, AI-assisted agent and workflow generation, and knowledge base target…

Read the review →
  1. Amazon LexConversational AI Platforms 9.2Paid
  2. Yellow.aiConversational AI Platforms 8.1Free plan

Strengths and trade-offs

  • Amazon Lex — where it wins

    • Combines speech recognition, language understanding, and multi-turn dialogue.
    • Offers visual and generative-AI-assisted bot creation options.
    • Deploys across messaging, web, mobile, and contact-center environments.

    Where it doesn't

    • Usage-based charges span separate text, speech, and design rates.
    • Business logic and knowledge answers rely on AWS integrations.
    • The published support channel is documentation.

  • Yellow.ai — where it wins

    • Visual builder and AI-assisted workflow generation support agent creation.
    • Knowledge sources include documents, websites, URLs, and third-party content.
    • Agents can span chat, voice, email, and messaging with human escalation.

    Where it doesn't

    • The Free plan includes 500 chat sessions per month.
    • The Free plan has limited channels and features.
    • Enterprise pricing requires contacting sales.

More comparisons

All conversational AI platforms comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update