Hume AI Pricing for Emotion-Aware Voice Apps (June 2026)

Hume pricing is not just a TTS bill. Product teams have to model three separate constraints: EVI speech-to-speech minutes, Octave text-to-speech characters, and concurrent voice sessions. Seat count, consent-safe voice cloning, and compliance needs can push a team up-tier even when raw usage still looks small.

AiPedia rechecked Hume’s pricing page, EVI docs, Octave TTS docs, voice cloning docs, use-case guidelines, and PartnerStack redirect links on June 28, 2026. The public pricing page listed Free, Starter, Creator, Pro, Scale, Business, and Enterprise plans. The old Expression Measurement docs route now returns Page Not Found in the current docs markdown endpoint, so do not buy Hume for a new Expression Measurement build unless Hume gives you current replacement documentation.

Quick Verdict

Start with Free if you have not run a real EVI session and Octave prompt yet. Move to Starter only for a tiny paid test. Use Creator for an indie pilot when 200 EVI minutes, 140,000 Octave characters, and 5 concurrent connections are enough. Inspect Pro when the app is production-facing because it raises Hume to 1,200 EVI minutes, 1,000,000 Octave characters, and 10 concurrent connections.

Use Scale or Business when concurrency, seats, or included minutes become team constraints. Move to Enterprise when custom usage, Slack support, SOC 2 Type II, GDPR, HIPAA packaging, or custom rate limits matter.

Do not buy Hume if the job is only polished narration. Use ElevenLabs for that. Do not buy Hume if the main constraint is lowest-latency phone-agent routing. Test Cartesia or Retell AI first.

Plan Choice

Free, best for first proof. Free gives 10,000 Octave characters, 5 EVI minutes, 1 concurrent connection, and 15 requests per minute. Use it to test an end-to-end conversation, voice style, interruption behavior, and latency with safe sample data.

Starter, best for the smallest paid test. Starter is $3/month with 30,000 Octave characters, 40 EVI minutes, and 5 concurrent connections. It is useful when a prototype needs more than Free, but the included minutes are still too small for production traffic.

Creator, best for indie pilots. Creator is shown at $7 for the first month and $14/month after that. It includes 140,000 Octave characters, 200 EVI minutes, 5 concurrent connections, and a commercial license. Choose Creator when you need a real pilot but can cap usage tightly.

Pro, best first production inspection. Pro is $70/month with 1,000,000 Octave characters, 1,200 EVI minutes, 10 concurrent connections, and a lower EVI 3 usage rate than Creator. AiPedia would inspect Pro first for a production product because it is the first tier with enough headroom to reveal real unit economics.

Scale and Business, best for team usage. Scale is $200/month with 3,300,000 Octave characters, 5,000 EVI minutes, 20 concurrent connections, and 3 seats. Business is $500/month with 10,000,000 Octave characters, 12,500 EVI minutes, 30 concurrent connections, and 5 seats.

Enterprise, best for custom compliance. Enterprise is custom priced. Hume lists custom usage, Slack support, and SOC 2 Type II, GDPR, and HIPAA packaging on the Enterprise row. Treat this as the route for regulated, high-volume, or procurement-heavy deployments.

Model The Bill Before You Upgrade

Hume’s pricing page separates Octave and EVI. A product can run out of one before the other.

• Octave TTS characters: Included monthly characters rise from 10,000 on Free to 10,000,000 on Business. Additional character costs are plan-dependent and shown in the public table as a range from $0.05 to $0.15 per 1,000 characters before custom enterprise pricing.
• EVI minutes: Included monthly EVI 3 minutes rise from 5 on Free to 12,500 on Business. Public EVI 3 overage pricing is shown on Pro, Scale, and Business at $0.06, $0.05, and $0.04 per minute, respectively. EVI 4 mini is metered at half rate in the pricing table.
• Concurrency: Free allows 1 concurrent connection. Starter and Creator allow 5. Pro allows 10. Scale allows 20. Business allows 30. Enterprise is custom.
• Seats: Free through Pro are solo buying paths. Scale lists 3 team seats, Business lists 5, and Enterprise lists unlimited seats.
• Support and compliance: Public plans list Discord support. Enterprise lists Slack support and SOC 2 Type II, GDPR, and HIPAA packaging.

When Hume Is Worth Paying For

Pay for Hume when emotion-aware voice behavior is load-bearing. Hume’s EVI docs describe a real-time voice AI that measures vocal modulations and responds with a speech-language model. That matters for coaching, support, accessibility, wellness, companion, education, and character-voice products where tone and response style are part of the product.

Pay for Hume when Octave’s emotional and semantic TTS understanding matters more than pure narrator polish. The TTS docs position Octave as a speech-language model that understands the text it speaks and can use voice design, voice acting instructions, cloning, conversion, continuation, and timestamps.

Pay for Hume when the team can build consent and safety review into the workflow. The voice cloning docs say uploaded samples should come from a consenting speaker. The use-case guidelines warn that expressive communication technologies can pose risks and that commercial applications incorporating Hume APIs must follow Hume Initiative ethical guidelines.

When To Pick Something Else

Choose ElevenLabs when the buyer mostly needs creator narration, dubbing, audiobooks, ads, or very broad TTS quality. Hume can generate expressive voice, but its strongest reason to pay is the emotion-aware interaction layer.

Choose Cartesia or Retell AI when latency, telephony, routing, and agent infrastructure are more important than Hume’s emotion-aware behavior.

Choose Deepgram or AssemblyAI when the product only needs transcription, diarization, speech understanding, or speech-to-text APIs. Do not buy EVI minutes when the product never needs a voice response.

Use a direct Hume sales review for regulated, health, therapy, youth, employment, financial, or other high-risk experiences. Emotion-aware systems should not be treated as clinical truth or user-state ground truth.

Buying Checklist

Before upgrading, answer these questions:

• How many EVI minutes will one active user consume per week?
• How many Octave characters does one session generate?
• What is the peak concurrent voice-session count?
• Will cloned voices be used, and how will consent be recorded?
• Does the app need a commercial license during the pilot?
• Is the team comfortable with Discord support, or does it need Slack and enterprise support?
• Are SOC 2 Type II, GDPR, HIPAA, custom retention, or procurement reviews required?
• Is any requirement still tied to the old Expression Measurement API?

If you cannot answer the first three questions, stay on Free, Starter, or Creator until a measured pilot produces usage data.

Bottom Line

Use Free to test Hume’s feel. Use Starter for the smallest paid pilot. Use Creator when a solo builder needs a commercial pilot with 200 EVI minutes. Use Pro when the product is production-facing. Use Scale, Business, or Enterprise only after concurrency, seats, included minutes, support, or compliance requirements justify the jump.

Affiliate disclosure: AiPedia may earn a commission if you click a Hume link and sign up. Rankings and plan recommendations stay editorial; Hume did not pay for placement.