Airy TTS

Measured 2026-10-20. All 20 takes differ, but barely: mean pairwise distance 0.0120, against 0.0959 for Deepgram aura-2.

Fined:

• fatal · decimals — never said “zero point zero zero zero zero zero one” (5 of 7 transcripts)

→ we sent “The drift is 0.000001 per cycle.”

→ it said “The drift is zero zero zero zero zero one per cycle.”

• fatal · units — never said “five foot eleven” (7 of 7 transcripts)

→ we sent “He is 5'11" tall.”

→ it said “He is five one in tall.”

• fatal · currency (international, ×0.4) — dropped the minus sign (7 of 7 transcripts)

→ we sent “Balance: -€45,90 outstanding.”

→ it said “Balance: 4.590 euros outstanding.”

+ 12 more fined

One credit per English input character. Pay-as-you-go credits cost $11 for 3M, $3.67 per 1M characters. Plan A works out to $3.33 and Plan C to $2 (airy.so pricing, read 2026-10-20).