FlowSpeech - AI Speech Workflow

Can FlowSpeech handle a full novel or long audiobook in one render?

FlowSpeech can process up to 200,000 characters per render, which covers most chapters or substantial sections of a book. For complete novels, you would break the text into multiple renders and stitch the audio files together afterward. The platform supports direct ingestion of EPUB, PDF, and WORD files, so you can feed entire documents and parse them into appropriately sized chunks.

How does the emotion control work, and can I apply different emotions to different characters?

FlowSpeech lets you add custom emotion and accent tags directly in your script to shape how the AI delivers specific lines or passages. The Multi Speaker generation mode includes automatic voice matching for dialogue, so you can tag character names and the system assigns consistent voices; applying emotion tags within those character sections gives you per-character emotional control without manual voice selection.

What audio file formats does FlowSpeech export, and can I use the output commercially?

FlowSpeech does not publicly specify its export formats or commercial licensing terms. Check their site directly before committing workflow decisions that depend on a particular format or usage rights.

How much does the Basic plan give you compared to the free tier?

The Basic plan at $12 per month includes 200,000 characters per month, roughly 20 times the 10,000 character allowance for signed-in free users. That monthly limit covers most creators producing a few podcast episodes or chapters of an audiobook, though longer projects or multiple projects will require either the Pro plan at $39 monthly or the Scale plan at $129 monthly.