Alibaba Qwen3 TTS Fast Alibaba (Qwen) · text-to-speech (TTS) API

Speed

On Coval's 30-day window ending October 22, 2026 (3,374 runs from US East), Alibaba Qwen3 TTS Fast starts speaking after 63.9 ms on a typical turn (median) and 97.3 ms on a slow turn (P95, the slowest one in twenty). That P95 is 2nd lowest of the 32 models Coval measures, which puts it in the Headroom tier: headroom to spend elsewhere in the turn. On the median it is a tie (gap under 10 ms) with Gradium TTS and Inworld Realtime TTS-2 Flash. Speko's board plots it at 37 ms time to first audio from US East; its model page reports a 64 ms sweep.

Voice quality

Speko rates its naturalness at 1,536 Elo from blind A/B votes on phone-agent lines (19th highest of the 43 models Speko rates).

Numbers and dates

Speko's pronunciation test on numbers, dates and currency scores it 0.3 on a 0-to-1 scale (15th highest of the 30 models Speko scores). This is the accuracy measure used here; Coval's word error rate separates models too little to compare them.

Price

Speko lists about $10. List prices, as each source prints them.

Provider and host

The benchmarks measure this model through Nari Labs' API, so the latency above is Nari Labs'. Coval's model registry names Alibaba (Qwen) as the creator and Nari Labs as the host.