Fish Audio announced a free S2.1 Pro offer that lets developers test text-to-speech through the same endpoint as its paid service, selecting the s2.1-pro-free model. Its announcement describes access without a fixed character cap, subject to fair-use limits. The offer was presented as temporary and was extended several times.
The offer is suited to evaluating a voice application before committing to paid service. It includes no uptime or latency guarantee, requests may be used for model improvement, and some commercial uses have restrictions. Those conditions matter when moving from a prototype to a customer-facing product.
