text_empty — nothing to voice

422 with reason: "text_empty". The order was not created and no money is reserved. When there is no text at the input in the first place (an empty field), the same case arrives differently — as ordinary validation, with the field in errors and no reason.

After markup was stripped, nothing speakable remained. Text comes from three equivalent channels — input_text, an uploaded .txt in input_files, and task_data.text — and all three go through the same checks. {{pause=2.5}}, <break time="2s"/>, and any [ … ] fragment without a line break are stripped and not billed: text made only of pause tags collapses into empty text. A related code is text_not_voiceable (in OpenAPI it is called paragraph_not_voiceable): text remains, but it is only punctuation (., !!!, —) or only bracketed stage directions.

Check whether the body has errors: if it does, the field simply was not filled in; if not, the text arrived but consisted entirely of markup. Parentheses and angle brackets, asterisks, and other typography, on the contrary, ARE voiced and billed — removing them will not help.

POST /orders/chunks/preview with the same input_text — a dry run of the split shows what remains after markup is stripped, and costs nothing. An empty preview result confirms the diagnosis before you create an order.

• Guide: voiceover text
• POST /orders/chunks/preview
• POST /orders
• 422 — request not accepted