GCPProductionEvidence: Medium65/100

Callers case study - Google Cloud

Callers is a voice and text AI communications platform for B2C brands. The company needed to scale fully autonomous AI agents across voice, SMS, chat, and WhatsApp while keeping latency low and response quality high. Callers migrated infrastructure to Google Cloud, moved deployment to Google Kubernetes Engine, used Gemini as the core engine for natural-sounding voice conversations, and used Vertex AI for use-case-specific workflows. The system maintains customer context across channels and routes insights back to clients' CRMs.

Organization
Callers
Industry
Tech & Comms
Location
Israel
Published
May 2026

Reported outcomes

−30%

quantified impactTime & speed

30xquantified impact

Strategic outcomes

Scale & capacityScaled autonomous AI across channelsSpeed & agilityReduced communication latencyCustomer experience & trustImproved response qualityCustomer experience & trustEnabled revenue recovery from cold leads
Why do we believe this?Outcome claims, sources, and evidence checks

Normalized claim

Quantified impact: 30 x increase

Google Cloud Customer StoryMay 27, 2026Customer storyInferred claimMedium evidence strength

Scaled 30X to handle more than 250,000 interactions daily.

Normalized claim

Quantified impact: 30% decrease

Google Cloud Customer StoryMay 27, 2026Customer storyInferred claimMedium evidence strength

Reduced latency by 30%.

Why do we believe this deployment?Customer identity, provider attribution, maturity, and source checks
Customer
Callers
Provider
GCP
Maturity
Production

Migrated infrastructure to Google Cloud and deployed on Google Kubernetes Engine (GKE)

Customer identity supportedSource describes one deploymentMaturity supported

Primary read

Use case focus

Showing 3 of 4

  • 1Conversational AI
  • 2Customer Service
  • 3Contact Center
  • Scaling autonomous AI agents across multiple customer communication channels with low latency and high response quality.
  • Coordinating systems across multiple clouds while improving engineering velocity and customer experience.
  • Migrated infrastructure to Google Cloud and deployed on Google Kubernetes Engine (GKE).
  • Adopted Gemini as the core engine for natural-sounding voice agents.
  • Used Vertex AI for use-case-specific workflows.
  • Implemented a single AI brain that retains full customer context across voice, chat, SMS, and WhatsApp and routes insights back to customers' CRMs.
  • Scaled 30X to handle more than 250,000 interactions daily.
  • Reduced latency by 30%.
  • Improved response quality.
  • Increased connect rates and deal closures.
  • Helped customers recover revenue by reviving cold leads with real-time voice AI.
Architecture

Callers migrated its infrastructure from multiple cloud environments to Google Cloud and deployed on Google Kubernetes Engine. The platform uses Gemini as the core engine for voice conversations and Vertex AI for use-case-specific workflows, with a single AI brain retaining context across voice, SMS, chat, and WhatsApp and pushing insights back into client CRMs.

Sources & evidence1
Evidence: Medium65/100Evidence strength
  • Customer explicitly identified
  • Deployment status explicitly supported
  • Primary source available
  • Quantified outcome available
  • Technical implementation details available
Type: Customer StoryPublished: May 27, 2026Publisher: Google CloudEvidence: PrimaryConfidence: High

AI-generated summary. Verify important details with the linked sources before relying on this case.

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