NewIntroducing the Hume Audio Decisions APIOne model, any question, straight from audio
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Introducing the first audio-native decision model

The intelligence of millions of human listeners, built into one model. Turn questions about audio into fast, structured, probabilistic judgments, without relying on transcripts or building separate models for every task.

Customer Calls

We engage customers to learn their challenges and make AI feel more human.

Pick OneWhat emotion is the customer exhibiting?
Pick OneWhat language is spoken?
Yes/NoDoes the reply address what the caller asked?
Pick OneHow many people are speaking?
ScaleHow intrusive is the background noise?
Add questionYou can add or change a question any time.

Trusted by AI leaders

Built on Proven Science

Leading AI labs
5 of 7
Languages supported
50+
Speech samples
100M+
Emotion science research
10+ years

There is more to voice
than words.

A task can succeed while the conversation fails. Humans judge voice AI on timing, tone, emotional expression, interruption, accent, context, and adaptation. Hume measures all of it.

Tone: Calm. Expression: Joy 6.2. Context: Small talk.
Tone: Playful. Expression: Amusement 8.4. Context: Reacting.
Tone: Warm. Expression: Concern 7.0. Context: Follow up.
Tone: Relaxed. Expression: Calmness 6.8. Context: Listening.

From complex pipelines
to one model

Hume’s audio-native model integrates speech, sound, and context to answer audio questions. It replaces complex models with structured answers in one API call.

Explore the Decisions API

Today

Multiple models, fragmented outputs, complex orchestration

With Hume

One model, all answers structured
and in context

One evaluation platform
for models and agents

Select the right model, define use-case-specific quality, validate realistic interactions with automated and human evaluation, and turn findings into focused improvements.

Voice Model evaluation workflow: start, define quality for tone, timing and turn-taking, then automated stress-test scenarios (passed, 0.91) and trained human raters (4.7 average), then compare checkpoints (+0.12 overall, -0.03 clarity).

Explore model development

Choose the right model for your agent, simulate real customer calls, validate with trained raters, and ship focused fixes with confidence.

Deploy Agent transcript: the caller urgently asks about a late order; intent detected as order status; the voice agent replies after a 910 millisecond gap that the order ships Friday; urgency not acknowledged; automated score 84%, human score 79%; focused improvement: acknowledge first.

Explore voice agents

See how leading voice models
perform in the real world

VoiceEQ assesses voice systems in real conditions, merging objective metrics with human insights to highlight strengths and tradeoffs.

  1. gemini-3.1-flash-liveGoogle3.76
  2. gpt-realtime-2OpenAI3.74
  3. agentElevenLabs3.45
  4. grok-voice-2.0xAI3.41
  5. qwen3-omni-30b-a3bQwen3.19

Voice-native infrastructure
for better evaluation and training

User Testing API

Prepare audio for training

Transform unstructured audio into searchable, expression-rich inputs.

Expression APIs

Measure what transcripts miss

Measure vocal expression, timing, and conversational dynamics.

Human Feedback API

Evaluating human judgment

Conduct evaluations with trained raters to assess people's experiences.

Access Hume's research systems to develop voice models. Use APIs to enrich audio, measure expression, and incorporate judgment.

Explore evaluation

Make emotionally intelligent voice AI measurable