Find answers about AltSpeak voices, billing, audio formats, and limits, or get in touch. AltSpeak is a hosted AI text-to-speech studio. Email [email protected] and we will get back to you within one business day.
Sign up free, pick a voice, paste your text, and hit generate. You can preview any voice before committing credits.
200+ voices from Google Chirp3-HD and Inworld across 100+ languages on paid plans (59 languages on Free). Inworld TTS-2 is available on every plan, with full expressive markup and crosslingual voice switching on paid plans. Each voice has a preview so you can find the right fit.
AltSpeak uses a credit-based system. Plans start from $5/month. You can manage your subscription and view usage from your account dashboard.
MP3 on every plan, including Free. WAV from Starter, OGG Opus from Creator, and FLAC plus telephony codecs on Pro.
50,000 characters per generation, which covers full chapters, entire scripts, and long-form content in a single pass.
Use the Report a Bug button in the app footer, or email [email protected] with a description of the issue and any relevant screenshots.
Related: AltSpeak text to speech, patch notes, TTS cost calculator.