Vendor / paper demo
Speaker 1 (Fish-Speech) · Fish-Speech clip from the IndexTTS comparison table, Speaker 1.
Old will is a fine fellow but poor and helpless since missus rogers had her accident.
Fish Audio · 2024–26 · S2 Pro
Open weights with a research license (commercial use needs a deal) and a hosted API. S2 Pro is a large dual-autoregressive codec model. The clip on this bench is the open Fish-Speech system from the IndexTTS comparison page, not a private S2 Pro API call.
Top open-weight arena rank with a non-permissive license asterisk.
Vendor / paper demo
Speaker 1 (Fish-Speech) · Fish-Speech clip from the IndexTTS comparison table, Speaker 1.
Old will is a fine fellow but poor and helpless since missus rogers had her accident.