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Google Dialogflow vs Zendesk Answer Bot

Google Dialogflow logo

Google Dialogflow

Software

Google's conversational AI platform

From
Free
Rated
-
Full reviewWebsite
Zendesk Answer Bot logo

Zendesk Answer Bot

Software

AI-powered chatbot for automated customer support

From
$55/month per agent
Rated
-
Full reviewWebsite

The short version

  • Only Google Dialogflow has a free tier, so it costs nothing to try first.
  • Each has a real cost: Google Dialogflow google's own Dialogflow pricing page (cloud.google.com/dialogflow/pricing) prices Conversational Agents (CX) text requests at $0.007 per request, audio input at $0.0065 per 15 seconds and audio output from $4 per 1 million characters, all in USD, with a one-time $600 free credit for the first 12 months; Dialogflow ES (Essentials) is billed per request separately from CX and the two are not interchangeable, so a chatbot built on ES cannot simply switch to CX pricing without migration.; Zendesk Answer Bot limited to Help Center articles only; cannot access customer account data, billing information, or external systems
  • They diverge on capability: Google Dialogflow covers NLU and NLG, Zendesk Answer Bot covers AI chatbot.

Where they differ

Only the attributes on which Google Dialogflow and Zendesk Answer Bot actually diverge.

Attributes where Google Dialogflow and Zendesk Answer Bot differ
AttributeGoogle DialogflowZendesk Answer Bot
Starting priceFree$55/month per agent
Pricing modelusage-basedUnknown
Free tierYesNo
PlatformsWeb, Mobile, Messaging apps, Voice assistantsWeb, Email, Slack, Mobile
Founded19982007

Identical on both: user rating (Not yet rated), category (Unknown).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Google Dialogflow

  • NLU and NLG
  • Integration with Google services
  • Webhooks
  • Google Cloud
  • Facebook
  • Telegram
  • Voice assistants support

Only in Zendesk Answer Bot

  • AI chatbot
  • Knowledge base integration
  • Intent recognition
  • Zendesk Support
  • Zendesk Chat
  • API

Both cover

  • Multi-language support
  • Slack
  • Web support
  • Mobile support
  • Messaging apps support

What people use each for

The jobs each tool is most often brought in to do.

Google Dialogflow

  • Customer engagement
  • Lead generation
  • Customer support
  • Sales automation

Zendesk Answer Bot

  • Customer engagement
  • Lead generation
  • Customer support
  • Sales automation

Both are used for customer engagement, lead generation, customer support, sales automation, on those jobs the choice comes down to price and fit rather than capability.

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Google Dialogflow

  • Google's own Dialogflow pricing page (cloud.google.com/dialogflow/pricing) prices Conversational Agents (CX) text requests at $0.007 per request, audio input at $0.0065 per 15 seconds and audio output from $4 per 1 million characters, all in USD, with a one-time $600 free credit for the first 12 months; Dialogflow ES (Essentials) is billed per request separately from CX and the two are not interchangeable, so a chatbot built on ES cannot simply switch to CX pricing without migration.

Zendesk Answer Bot

  • Limited to Help Center articles only; cannot access customer account data, billing information, or external systems
  • Fixed timeout limits on API calls prevent lookups to external systems from completing
  • Does not perform actions like refunds or account updates; only suggests documentation
  • Uses keyword matching rather than true natural language understanding, leading to mismatched suggestions on complex queries

Pricing, plan by plan

Google Dialogflow

Free
  • Free TierFree
    • 100 requests/day
    • Basic NLU
  • Standard$0.005/month
    • Pay per request
    • Advanced features
  • Enterprise$undefined/month
    • Custom SLAs
    • Dedicated support

Zendesk Answer Bot

$55/month per agent
  • Suite Team$55/month per agent
    • Answer Bot included
  • Suite Growth$89/month per agent
    • Answer Bot included
  • Suite Professional$115/month per agent
    • Answer Bot included

Which should you pick?

Choose Google Dialogflow if

  • You need nlu and nlg.
  • You want to start without paying.
  • You work on Web, Mobile, Messaging apps, Voice assistants.
  • You also want integration with google services.
Google Dialogflow review

Choose Zendesk Answer Bot if

  • You need ai chatbot.
  • You work on Web, Email, Slack, Mobile.
  • You also want knowledge base integration.
Zendesk Answer Bot review

Questions people ask

Is Google Dialogflow or Zendesk Answer Bot better?
Neither clearly leads. Google Dialogflow starts at Free and Zendesk Answer Bot at $55/month per agent, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Google Dialogflow or Zendesk Answer Bot?
Google Dialogflow has a free tier; the other does not. Paid plans start at Free for Google Dialogflow and $55/month per agent for Zendesk Answer Bot.
Does Google Dialogflow or Zendesk Answer Bot run on more platforms?
Google Dialogflow runs on Web, Mobile, Messaging apps, Voice assistants. Zendesk Answer Bot runs on Web, Email, Slack, Mobile.
Can I use Google Dialogflow for free?
Yes. Google Dialogflow has a free tier, so you can try it without paying. Zendesk Answer Bot starts at $55/month per agent.
What is Google Dialogflow best used for?
Google Dialogflow is most often used for customer engagement, lead generation, customer support, sales automation.
What can Google Dialogflow do that Zendesk Answer Bot cannot?
Google Dialogflow covers NLU and NLG, Integration with Google services, Webhooks, Google Cloud. Zendesk Answer Bot covers AI chatbot, Knowledge base integration, Intent recognition, Zendesk Support. Both handle Multi-language support, Slack, Web support, Mobile support.

Answered from the vendors’ own pages

Zendesk Answer Bot: Is Answer Bot included in my Zendesk plan?

Answer Bot functionality is now part of Zendesk AI agents included in Suite and Support plans, though Advanced AI features require the Advanced AI add-on. Legacy Essential tier Answer Bot was sunset on December 31, 2026.

Source
Zendesk Answer Bot: What channels does Answer Bot support?

Answer Bot works in email autoresponses, Slack channels (free feature for Guide Enterprise or Professional plans), and the web widget. For Slack, it listens to selected channels and suggests relevant Help Center articles to users.

Source
Zendesk Answer Bot: Does Answer Bot generate complete answers or just suggest articles?

Classic Answer Bot primarily suggests articles from your Help Center that might solve the issue, leaving the customer to read the article themselves. It does not generate a full response or summarize the article content.

Source
Zendesk Answer Bot: How is Answer Bot usage billed?

As of 2026, Zendesk charges for AI agent features using an automated resolutions model rather than monthly active users. The specific per-resolution pricing varies by plan and was transitioning during 2026.

Source
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