← Text-to-Speech

MiniMax

speech-2.8-hd

Measured 2026-07-03

Run speech-2.8-hd on Speko →

One API, every model on this board.

Naturalness

1431

Win % · 95% CI

36%

30–43%

Drift

12

Synth p50

294ms

294–354 p50–p90

Robustness

0.15

Fined:

• fatal · currency — dropped the minus sign (49 of 49 transcripts)

→ we sent “Your account shows −$85.40 after the refund.”

→ it said “Your account shows $85.40 after the refund.”

• fatal · decimals — never said “point seven five” (49 of 49 transcripts)

→ we sent “Give .75 of the usual dose.”

→ it said “Give seventy-five of the usual dose.”

• fatal · formatting — never said “pick either option” (49 of 49 transcripts)

→ we sent “You can pick *either* option today.”

→ it said “You can pick times either times option today.”

+ 11 more fined

Cost / 1M chars

$100.0

HD tier; speech-2.8-turbo ≈ $60/1M.

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