The trust platform
for voice and chat agents

Test before launch. Monitor in production. Red-team risky behavior before it reaches customers.

Thanks to the team at Hamming AI, who make the voice agent testing system which I used. If you haven't built a system like this, you really can't imagine how painful it is to test.
Jared FriedmanJared FriedmanManaging Director, Y CombinatorY Combinator
10K+ agents monitoredBuilt by ex-Tesla AI engineers
First test report in under 10 minsSOC 2 Type IIHIPAA (BAA available)

Trusted by high-growth startups, banks, and healthtech companies where reliability matters

LorikeetLuma HealthY CombinatorNetomiMaven AGIEllipsis Health
Hamming AI Platform Dashboard

Hamming AI Platform Statistics

  • under 10 minsto first testEnterprise-grade testing with startup speed
  • 100sof tests auto-generatedAI generates test scenarios from your agent prompt
  • 50K+concurrent test callsEnterprise load tests across inbound, outbound, and WebRTC
  • 50+built-in metricsLatency, hallucinations, sentiment, compliance, and custom evaluators

As Featured In

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What voice AI leaders say about Hamming

  • Our old testing vendor told us our voice agents were passing. Our customers and our own ears told us otherwise. Hamming closed that gap. It surfaced real failures the other tool couldn't see, precise enough that we could isolate and fix them fast. Hamming is now our exclusive regression-testing gate for every new agent we build, and part of our core product experience.
    Gustavo Sanchez

    Gustavo Sanchez

    Founder & CEO, Booked AI

  • After trying many, this is by far the strongest evaluation platform for voice agents.
    Anthony Rassi

    Anthony Rassi

    Co-founder & CTO, Serve

  • Participant engagement is critical in clinical trials. Hamming's call analytics helped us identify areas where Grace was falling short, allowing us to improve faster than we imagined.
    Sohit Gatiganti

    Sohit Gatiganti

    Co-Founder and CPO, Grove AI

    Read case study
  • Blown away by the progress Hamming has made. Excellent voice eval platform.
    Alex Mehregan

    Alex Mehregan

    Co-founder & CTO, Opalite Health

  • Hamming saved us a lot of headaches. We caught a critical bug. The agent was saying 'I booked your appointment' but didn't actually book it. We killed it before any customer saw it.
    Josh Collin

    Josh Collin

    CEO & Co-Founder, Bland Labs

    Read case study
  • The proactive discovery is probably the number one most useful thing. We want issues to be raised either internally with our existing analytics and fallback mechanisms or through Hamming.
    Jyoti Rani

    Jyoti Rani

    AI Engineer, Synthpop

    Read case study
  • Best platform we have tried so far!
    Efrén A. Lamolda

    Efrén A. Lamolda

    Co-founder & CTO, mdhub

  • Amazing team, incredible development velocity, and a truly great product! Hamming was the clear winner among the handful of vendors we trialed to support our production observability and reliability as we scale voice agents in healthcare.
    Michael Skupien

    Michael Skupien

    Engineering, Anima

  • The programmatic part of it to me is the big unique offering and advantage, which is why we switched over to your platform.
    Blake Jones

    Blake Jones

    AI Engineer at Basata

    Read case study

From prompt to production in 4 steps

Connect your agent, auto-generate tests, run thousands of calls, and monitor production - all in one platform.

Connect your agent visualization

Easy integration

Dial your SIP number or call our number to load-test, or connect straight to LiveKit / Pipecat - no SIP required. One-click import for LiveKit, Pipecat, ElevenLabs, Retell, Vapi, and Hopper.

One-click prod → test

Convert any live conversation into a replayable test case with caller audio, ASR text, and expected intent in one click.

Auto-generated tests & scoring

We auto-generate test cases and evaluate how your voice agent performs - no manual setup or rules required.

Red-teaming suite

Run a curated set of safety tests built from patterns across many production deployments - no custom prompts required.

DTMF & IVR emulation

Simulate IVR trees, send DTMF tones, and verify your agent navigates legacy systems without human help.

Detailed reports

Receive rich PDF test reports to share results across teams - ideal for QA signoff, compliance, or stakeholder reviews.

Ship voice agents with confidence

Small prompt changes cause big quality swings. We help you catch regressions, benchmark performance, and iterate faster - so you can ship without sacrificing real customers.

The flight simulator for voice agents

Like Tesla's Shadow Mode for self-driving, test new prompts against real production calls without risk. Our Voice Agent Simulation Engine turns every production failure into a test scenario automatically - so your simulations predict reality with 95%+ accuracy. Run 50K+ concurrent test calls with real-world conditions: accents, background noise, interruptions, and edge cases learned from actual customer behavior.

The flight simulator for voice agents

Works with your voice stack

Native integrations with LiveKit, Pipecat, ElevenLabs, Retell, Vapi, and more. Import production calls, auto-analyze failures across call sets, and recommend prompt improvements to cut debugging time - then convert failures into test cases without changing your infrastructure.

Works with your voice stack

Latency & quality benchmarking

Track what matters: time-to-first-word, turn-taking latency, interruption handling, and monologue detection. Get component-level breakdowns (STT, LLM, TTS) to pinpoint exactly where delays occur.

Latency & quality benchmarking

CI/CD & REST API integration

Run tests on every deploy with our REST APIs. Integrate Hamming into GitHub Actions, Jenkins, or any CI/CD pipeline. Block bad prompts from reaching production and get instant feedback on regressions.

CI/CD & REST API integration

Trusted by AI-forward
enterprises

Clinical Trials

Grove AI

Participant engagement is critical in clinical trials. Hamming's call analytics helped us identify areas where Grace was falling short, allowing us to improve faster than we imagined.

Photo of Grove AI

Grove AI

Sohit Gatiganti, Co-Founder and CPO, Grove AI

Customer Support

Podium

We rely on our AI agents to drive revenue, and Hamming ensures they perform without errors. Hamming's load testing gives us the confidence to deploy our voice agents even during high-traffic campaigns.

Photo of Podium

Podium

Jordan Farnworth, Director of Engineering, Podium

Healthcare AI

Basata

The programmatic part of it to me is the big unique offering and advantage, which is why we switched over to your platform.

Photo of Basata

Basata

Blake Jones, AI Engineer at Basata

High Volume Recruiting

PurpleFish

Hamming didn't just help us test our AI faster - its call quality reports highlighted subtle flaws in how we screened candidates, making our process much more robust, engaging and fair.

Photo of PurpleFish

PurpleFish

Martin Kess, Co-Founder and CTO, PurpleFish

AI Receptionists

Smith.ai

Hamming transformed how we ensure our AI receptionists handle complex calls. We can now test thousands of scenarios - from appointment scheduling to emergency escalations - giving us confidence that our 3,500+ clients receive flawless service 24/7.

Photo of Smith.ai

Smith.ai

Ben Clark, CTO, Smith.ai

We mimic your customers

Our voice agents are trained to mimic human conversations, including accents, background noise, and pauses.

Diagram showing Hamming AI agents calling a central agent

Cross-industry expertise in AI voice agent testing

We help teams in high-stakes domains where mistakes lead to churn, compliance issues, or lost revenue.

Appointment Scheduling

No more testing timezone edge cases by hand

Handle scheduling, cancellations, and re-scheduling with confidence.

Manage multiple time zones

Verify appointment details with accuracy

Handle complex calendar conflicts

Drive-thrus

Simulate rush hour, accents, and dietary restrictions

Deploy trustworthy drive-thru agents that handle complex orders with precision.

Dietary restrictions and allergies

Background noise and accent variations

High volume rush hour conditions

Customer Support

Test escalation flows without real customers

Launch 24/7 agents that consistently deliver high-quality customer service.

Maintain compliance standards

Escalate appropriately to human agents

Handle emotional conversations

Phone Follow-Ups

HIPAA-compliant testing for patient interactions

Deliver critical healthcare information accurately and empathetically.

HIPAA-compliant communication

Prescription reminders and instructions

Emergency escalation protocols

Personal Assistant

Simulate complex multi-step task workflows

Manage diverse task requests effectively and reliably.

Manage flights and travel itineraries

Adapt to user preferences and workflow

Schedule and organize appointments

Coaching and Tutoring

Test conversational learning paths at scale

Effectively teach and guide students towards their goals with clarity.

Simulate diverse learning scenarios

Track engagement and responsiveness

Assess clarity of explanations

Test in 65+ languages and regional accents

From Gulf Arabic to South Indian accents, UK English to Latin American Spanish - we simulate the real voices your agents will encounter.

English

Spanish

Portuguese

French

German

Arabic

Hindi

Tamil

Japanese

Korean

Mandarin

Italian

+50 more

Regional accents matter. We support South Indian, Gulf Arabic, UK English, Australian, and more.

Listen to a sample from our collection

Experience a voice agent capable of conversing in various languages, ensuring accurate and efficient communication with users from diverse backgrounds.

Avery

American (south)

Kunal

Hindi

Ava

American

Isabella

Italian

Claude

French

Klaus

German

Built for cross-functional teams

Empower every team member to build reliable voice AI agents. Hamming unifies your entire organization around voice agent quality and performance.

Engineering

Daniel's avatar

Daniel

Backend Engineer

Finally, a testing platform built for developers. Everything's API-first - I can programmatically trigger tests, fetch results, and integrate with our CI/CD pipeline without touching the UI.

Julia's avatar

Julia

Platform Engineer

REST APIs for everything. Webhooks that actually work. I can run tests on every deploy and block bad prompts from reaching production automatically.

Carson's avatar

Carson

Full-Stack Engineer

Other voice agent testing platforms are designed for non-developers with pretty UIs but painful integrations. Hamming gives me the low-level control I need to build exactly what I want.

Valentina's avatar

Valentina

DevOps Engineer

GitHub Actions, Jenkins, any CI pipeline - it just works. We trigger test runs programmatically and get instant feedback on regressions before merging.

QA

Alex's avatar

Alex

QA Lead

Manual voice testing was tedious and mind-numbing - calling repeatedly, asking the same questions across 50+ agents. Now I run 1000 scenarios in parallel while I focus on actual test strategy.

Helena's avatar

Helena

Test Automation Engineer

Turn-by-turn evals kept breaking because conversations take different paths. Hamming evaluates whether the goal was achieved - not whether each step matched a script.

Jitendra's avatar

Jitendra

QA Engineer

Executing 1000 test scenarios used to take our team a full week. Now we run them all in minutes and get aggregate reports showing exactly where the agent broke and why.

Kristen's avatar

Kristen

Voice Experience Tester

Hamming automatically flags repetitive loops, poor turn-taking, off-script behavior, and tool call failures. We catch issues that would slip through manual testing every time.

Product

Sonia's avatar

Sonia

Product Manager

We iterate on prompts 10-20x faster than before. Small changes used to take days of manual testing - now I can validate a prompt update in minutes and ship with confidence.

Darryl's avatar

Darryl

Conversation Designer

Before Hamming, I had no visibility into how prompt changes affected real conversations. Now I see exactly what broke and why before customers ever notice.

Gustaf's avatar

Gustaf

Growth Lead

We shipped to production knowing our agent handles edge cases - elderly callers, background noise, interruptions. No more crossing our fingers and hoping it works.

June's avatar

June

Product Manager

Every prompt iteration requires testing, and testing manually doesn't scale. Hamming lets us move fast without breaking what already works.

Security & Compliance

Gaffney's avatar

Gaffney

Security Engineer

RBAC ensures contractors only access testing environments - not production PHI data. Audit logs export to our SIEM via webhooks for complete visibility.

Lucy's avatar

Lucy

Compliance Manager

SOC 2 Type II certified, HIPAA-ready with BAA support. Single-tenant architecture keeps our systems out of PCI scope.

Chloe's avatar

Chloe

CISO

US-only data residency, customer-managed encryption keys, and complete data isolation with single-tenant deployment gives us enterprise-grade security.

Chris's avatar

Chris

InfoSec Analyst

Pre-built security packs test for jailbreak attempts and PII disclosure before production. We catch vulnerabilities before attackers do.

Security & compliance

Built for regulated environments where trust, privacy, and audit readiness are non-negotiable.

SOC 2 logo

SOC 2 Type II

We maintain SOC 2 Type II controls to support enterprise security requirements for data protection, access controls, and operational resilience.

HIPAA Compliant badge

HIPAA (BAA available)

Hamming supports HIPAA-aligned workflows for testing and monitoring voice agents that handle protected health information (PHI). We can sign a Business Associate Agreement (BAA).

Frequently Asked Questions

Frequently asked questions

We evaluate holistically. Did the caller's goal get accomplished? That's what matters - not whether each turn matched a script exactly.

Conversations take many paths. Turn-by-turn matching is brittle and breaks constantly. We use AI to understand intent and outcomes.

We support 65+ languages including English, Spanish, Portuguese, French, German, Arabic, Hindi, Tamil, Japanese, Korean, Mandarin, and more.

Regional accents matter. We support South Indian, Gulf Arabic, UK English, Australian, Latin American Spanish dialects, and many more.

Yes. We simulate realistic caller behavior including interruptions, barging in mid-sentence, long silences, and unexpected inputs.

We also simulate background noise, elderly callers, fast/slow speakers, and emotional conversations - the real-world scenarios your agents will face.

Dial a SIP number in minutes, or point us at LiveKit/Pipecat for direct WebRTC. Run your first test call in under 10 minutes.

Hamming is the only complete platform for voice agent QA - combining every capability other platforms specialize in, plus features they don't have:

  • Automated scenario generation(pioneered by Hamming) - AI-generated test cases from your agent's prompts and documentation
  • Audio-native evals - Analyze audio directly, not just transcripts. 95-96% agreement with human evaluators
  • Production call replay (Scenario Rerun) - Replay real calls against new agent versions with one click
  • 50K+ concurrent test calls - With realistic voice characters, accents, and background noise
  • Compliance validation - SOC 2 Type II, HIPAA with BAA, audit logs exportable to your SIEM
  • Security red-teaming - Prompt injection, jailbreak, and PII leakage testing
  • Enterprise controls - RBAC, SSO, single-tenant deployment, data residency (US/EU/UK)
  • CI/CD integration - Trigger tests on every PR, gate releases on pass rates

With a 90% win rate in head-to-head bake-offs, Hamming is the proven choice. If you're evaluating Hamming against another platform, ask them how they're different from Hamming.

We measure voice agent quality across three dimensions: conversational metrics, expected outcomes, and compliance guardrails.

Conversational metrics include turn-taking latency, interruptions, time to first word, talk-to-listen ratio, and more - tracked across both tests and production calls.

Expected outcomeslet you define what success looks like for each call: did the agent collect the required information, complete the booking, or resolve the customer's issue?

Compliance guardrails catch safety violations, prompt injection attempts, and policy breaches - so you can audit every call against your rules.

Hamming maintains SOC 2 Type II compliance and supports HIPAA.

For healthcare deployments, we can sign a Business Associate Agreement (BAA).

Enterprise load tests can run 50K+ concurrent test calls across inbound, outbound, or direct WebRTC paths, with concurrency shaped to your voice platform and test plan.

Every few minutes we replay a golden set of calls to detect drift or outages (model changes, infra incidents, prompt regressions).

We send email and Slack alerts when we detect issues - so you catch problems before your customers do.

Yes. We emulate IVR menus, send DTMF tones, and test both inbound and outbound agent flows end-to-end.

Yes. When a production call fails or surfaces an issue, convert it to a regression test with one click. The original audio, timing, and caller behavior are preserved - you test against real customer conversations, not synthetic approximations.

This production call replay capability ensures your fixes work against the exact conditions that caused the original failure.

Yes. Define custom metrics for your business rules - compliance scripts, accuracy thresholds, sentiment targets, domain-specific criteria. Score every call on what matters to your business, not just generic metrics.

Hamming includes 50+ built-in metrics (latency, hallucinations, sentiment, compliance, repetition, and more) plus unlimited custom scorers you define.

Paste your agent's system prompt. We analyze it and automatically generate hundreds of test scenarios - happy paths, edge cases, adversarial inputs, accent variations, background noise conditions.

No manual test case writing required. Hamming pioneered automated scenario generation for voice agents - other tools are still catching up.

Yes. Hamming natively ingests OpenTelemetry traces, spans, and logs. Get unified voice agent observability - testing, production monitoring, and debugging - in one platform.

Hamming complements Datadog and your existing observability stack. The value is keeping all core voice agent data - test results, production calls, traces, evaluations - unified in one place for faster debugging and deeper insights.

Yes. Hamming's speech-level analysis detects caller frustration, sentiment shifts, emotional cues, pauses, interruptions, and tone changes. We evaluate how callers said things, not just what they said.

This goes beyond transcript-only tools that miss crucial vocal signals. Audio-native evaluation catches issues that text analysis cannot.

Yes. Hamming tests both voice and chat agents with unified evaluation, metrics, and production monitoring. Whether your agent speaks or types, you get the same comprehensive QA platform - one set of test scenarios, one dashboard, one evaluation framework.

This multi-modal capability means teams building conversational AI don't need separate tools for voice and chat. Auto-generate scenarios, define guardrails, run regression tests, and monitor production - all in one platform regardless of modality.

Teams switching from developer-focused alternatives to Hamming cite faster time-to-value, less configuration overhead, and more consistent evaluation. While some platforms require weeks of configuration before running your first test, Hamming gets you testing in under 10 minutes.

The key difference is evaluation consistency: Hamming achieves 95-96% agreement with human evaluatorsby using higher-quality models and a two-step evaluation pipeline. Platforms that use cheaper LLM models often produce inconsistent pass/fail reasoning that engineers can't trust.

Developer-first doesn't mean developer-only. Hamming delivers engineering rigor (full REST API, CI/CD native, webhooks) with cross-functional accessibility (dashboard, reports, audio playback) so your whole team can collaborate on agent quality.

Yes. We offer startup and SMB-specific pricing designed to match your usage. Early-stage startups get pricing that scales with their team, while enterprise customers get custom plans with dedicated support and compliance features.

Talk to us to learn more about pricing options for your team.

Hamming serves startups and enterprises equally well. YC-backed startups run their first tests in under 10 minutes after a quick onboarding call. Enterprise teams get the same speed with additional compliance (SOC 2, HIPAA), dedicated support, and custom SLAs.

Unlike point solutions that force you to outgrow them, Hamming scales from day one. Start with 10 test cases, scale to 10,000. Add enterprise support when you need it. The platform grows with your team.

Many of our startup customers started testing the week they launched their voice agent and stayed with Hamming as they raised Series A, B, and beyond. No migration required.