Hume AI vs Cartesia: Features, Pricing and User Reviews 2026

Hume AI offers a free plan plus six paid tiers that scale with usage. The Free plan gives 10,000 text-to-speech characters and 5 minutes of speech-to-speech use each month at no cost.

• Starter ($3/month): 30,000 characters and 40 minutes of voice conversation.

• Creator ($7/month, 50% off the first month): 140,000 characters, 200 minutes, and a commercial license.

• Pro ($70/month): 1,000,000 characters and 1,200 minutes, with lower overage rates.

• Scale ($200/month): 3,300,000 characters, 5,000 minutes, plus team organization features.

• Business ($500/month): 10,000,000 characters, 12,500 minutes, and 5 team seats.

For large organizations, Enterprise offers custom usage limits, unlimited seats, Slack support, and compliance with SOC 2 Type II, GDPR, and HIPAA, available by contacting sales.

Cartesia offers five pricing plans, from a free plan to a custom Enterprise option, so both small projects and large companies can find a fit.

• Free ($0/month): 20K credits a month plus $1 in prepaid agent usage, with access to Text to Speech and Speech to Text.

• Pro ($5/month): 100K credits a month, commercial use rights, and instant voice cloning.

• Startup ($49/month): 1.25M credits a month, professional voice cloning, and organization accounts.

• Scale ($299/month): 8M credits a month, priority support, and higher concurrency limits.

• Enterprise (Custom pricing): Custom credits, volume pricing, custom concurrency, SSO, and compliance agreements.

Extra charges apply for things like phone numbers ($0.014 per minute) and voice agent call minutes ($0.06 per minute), and subscriptions can be paused or cancelled anytime.