Deepdub · read on October 27, 2026

Deepdub PhantomZ 4.0

Name: Deepdub PhantomZ 4.0
Author: Deepdub

Deepdub PhantomZ 4.0 is a TTS (text-to-speech) model from Deepdub. Coval measures its P95 time to first audio at 430 ms, which puts it in the Visible delay speed tier. It ranks 20 of 86 in the full ranking.

Speed tier: Visible delay
P95 / median: 430 ms / 183.4 ms
Listener Elo: Not rated
Price per 1M chars: Not collected

Where it ranks

Full ranking: 20 of 86. Artificial Analysis does not rate this model for a use case, and it is not among the fastest, so it appears on no use case page.

The tier and the ranks are computed by this site from the benchmarks' figures, not declared by Deepdub.

Measurements and sources

Coval

Median time to first audio (P50)	183.4 ms
Time to first audio, P95	430 ms
Time to first audio, mean	192.1 ms
Time to first audio, P90	349.7 ms
Timed requests	2,796

Details

Provider	Deepdub
Access	Proprietary
Streaming	A benchmark measures its time to first audio
Features listed by Coval	emotion-control, multilingual, voice-cloning
Languages tested	Not collected: no benchmark here lists languages for this model
Measured by	Coval
Official site	deepdub.ai

Not collected

Nothing below is estimated. Each line says which measure is missing and why.

Naturalness (Speko naturalness): not measured by Speko (reading of 2026-10-27)
Listener rating (Artificial Analysis Speech Arena Elo): not measured by Artificial Analysis (reading of 2026-10-27)
Numbers and dates (Speko pronunciation score): not measured by Speko (reading of 2026-10-27)
Price (Artificial Analysis price per 1M characters): not measured by Artificial Analysis (reading of 2026-10-27)

Sources

https://benchmarks-api-6wxgp27p2a-ue.a.run.app/v1/results/aggregates?benchmark=TTS&window=30d&include_series=false (read on October 27, 2026)

Values are copied from these pages on the date shown. Vendor and model name agree in every source that lists it.

Compare it with the reference model: Gradium TTS vs Deepdub PhantomZ 4.0.