Deepgram · read on October 27, 2026
Deepgram Aura 2 En
Deepgram Aura 2 En is a TTS (text-to-speech) model from Deepgram. Coval measures its P95 time to first audio at 985.7 ms, which puts it in the Visible delay speed tier. It ranks 30 of 86 in the full ranking.
- Speed tier
- Visible delay
- P95 / median
- 985.7 ms / 527.2 ms
- Listener Elo
- Not rated
- Price per 1M chars
- Not collected
Where it ranks
Full ranking: 30 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 Deepgram.
Measurements and sources
Coval
| Median time to first audio (P50) | 527.2 ms |
| Time to first audio, P95 | 985.7 ms |
| Time to first audio, mean | 547.4 ms |
| Time to first audio, P90 | 810.8 ms |
| Timed requests | 2,806 |
Benchmarked through Cloudflare's API: the latency shown is the host's, not the model creator's.
Details
| Provider | Deepgram |
| Access | Proprietary |
| Streaming | A benchmark measures its time to first audio |
| Languages tested | Not collected: no benchmark here lists languages for this model |
| Measured by | Coval |
| Official site | deepgram.com |
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 Deepgram Aura 2 En.