Fish Audio S2.1 Pro

Pricing — 1 offering(s)

Showing the active price and any recorded history. Full pricing history is available via the paid API — see API docs.

Capability profile

Operator guidance

Fish Audio's own docs recommend S2.1 Pro for all new production integrations — same $15/1M-byte price as S1 and S2 Pro, with better quality, latency, throughput, and the broadest language coverage (83) in Fish's S-series. Use S1 or S2 Pro only if already integrated against them; new work should default here.

Use cases

• Production TTS — Fish Audio's own recommended default for new integrations
• Multi-speaker dialogue with open-ended natural-language emotion direction
• Latency- and reliability-sensitive deployments relying on TTFA/DPA guarantees

Limitations

• Improved latency/throughput figures over S2 Pro aren't independently published — Fish Audio doesn't state an exact number, only 'improved'
• A free variant ('s2.1-pro-free', fair-use limited, no TTFA/DPA guarantees) exists and is not yet a separate registry entry — don't assume this entry's guarantees apply to it
• Fish Audio's native billing unit is UTF-8 bytes, not characters — see registry pricing notes

Citations

• Fish Audio
• Fish Audio pricing and rate limits