sonic-3.5

Sonic 3.5 is now available on sonic-3-latest. We'd love for you to try it and tell us what you think.

Why you should try it

• More natural speech, pacing, and emotional expression, especially noticeable on expressive, conversational, and support-style transcripts.
• Cleaner audio quality across all languages and voices.
• Better alphanumeric read-out — confirmation codes, order numbers, phone numbers, IDs, and emails sound meaningfully more natural, in all supported languages.
• Step-change multilingual performance, particularly Hebrew, Japanese, Spanish, Hindi, German, Korean, and French.
• English heteronyms — tricky English heteronyms like "read," "bass," and "bow" now pronounce correctly in context.

How to try it

1. Point your API call or Playground request to the model ID sonic-3-latest.

Read from the provider's text; the quote is the provider's exact lines.