Fish Audio models now available on Vercel AI Gateway for free Vercel's AI Gateway now offers Fish Audio's four audio models for free through September 18, including text-to-speech and speech-to-text, with standard pricing resuming after the period unless models are used with the '-free' suffix. The free offer covers the s2.1-pro, transcribe-1, s2-pro, and s1 models, and is available via the AI SDK 7 release. Fish Audio https://vercel.com/ai-gateway/models/providers/fish-audio 's audio models are now available on AI Gateway. To celebrate the launch, every Fish Audio https://ai-sdk.dev/providers/ai-sdk-providers/fish-audio fish-audio-provider model is free on AI Gateway for the next 30 days, through September 18. Capability | Regular | Through September 18 | |---|---|---| Text-to-speech | $15.00 per million characters | Free | Speech-to-text | $0.36 per hour of audio | Free | Four models from Fish Audio are available, including their latest text-to-speech model: fish-audio/s2.1-pro text-to-speech : Built for low-latency streaming; clones a voice from a reference recording. fish-audio/transcribe-1 transcription : Returns the text along with the duration of the audio and timestamped segments, down to individual words. fish-audio/s2-pro text-to-speech : Covers around eighty languages and takes inline tags, plain-language directions written into the text itself, so you can change how a single word or phrase is delivered instead of setting one style for the whole request. fish-audio/s1 text-to-speech : Reads text that can carry markers for emotion, tone, and sound effects. How to use models during the offer period Using the standard model name i.e., fish-audio/s2.1-pro is free, but will automatically begin billing when the offer period ends. To ensure you aren't billed after the free period, add the -free suffix to the standard name, and the model will stop serving when the offer ends i.e., fish-audio/s2.1-pro-free . Speech and transcription ship in the current AI SDK https://ai-sdk.dev/providers/ai-sdk-providers/fish-audio fish-audio-provider 7 release. Generate spoken audio from text with generateSpeech and write the result: Transcribe recordings into text with transcribe . The audio can be a buffer, a base64 string, or a URL: Each segment carries the text and its start and end time in seconds, down to individual words. You can also try the Fish Audio models without writing any code. Open the models list https://vercel.com/ai-gateway/models/providers/fish-audio , click into a model, and send text or audio to hear or read the result in your browser. For a full overview of how to utilize audio models, refer to the speech quickstart https://vercel.com/docs/ai-gateway/getting-started/speech . For more detail on Fish Audio, refer to the AI SDK docs https://ai-sdk.dev/providers/ai-sdk-providers/fish-audio fish-audio-provider for the provider.