Rime arcanav3
Listed Rime
8.1
/100
Rime arcanav3 is a text-to-speech (TTS) API from Rime, measured by one independent benchmark, Speko.
Spanish German French Speko
async Pro v1.0 Async · text-to-speech (TTS) API
ListedSpeech Arena Elo 1,118 on Artificial Analysis, latency not measured; ranked 55th (tied) of 112 in the TTS for Voice Agents 2026 index.
Benchmark summary: 8.1/100, ranked 55th (tied) of 112 in the TTS for Voice Agents 2026 index (Listed). Strongest criterion: voice quality, 6.8 of 20 points.
async Pro v1.0 is a proprietary text-to-speech (TTS) API from Async, measured by one independent benchmark, Artificial Analysis.
Overall score
8.1 /100
Score breakdown
- Real-time speed 0 /60
- Voice quality 6.8 /20
- Accuracy 0 /15
- Price 1.3 /5
Data checked on September 30, 2026
Updated after each benchmark capture
Every point comes from a public benchmark: sources · methodology
async Pro v1.0 ranks 55th of 112 in the 2026 text-to-speech (TTS) API benchmark, with a score of 8.1/100.
Real-time latency
Neither Coval nor Speko measures async Pro v1.0's latency, so it scores 0 of 60 on real-time speed and does not appear in the real-time ranking.
Accuracy (word error rate)
No accuracy measurement: Coval does not measure its word error rate and Speko does not rate its pronunciation robustness, so accuracy counts 0 of 15.
Voice quality
In the Artificial Analysis Speech Arena (capture of October 1, 2026), async Pro v1.0 has an Elo of 1,118 (±13, 95% confidence) from 2,102 blind comparisons, 30th highest of the 92 models Artificial Analysis rates.
Price
Artificial Analysis lists async Pro v1.0 at $20.2 per 1M characters (37th lowest of the 78 models Artificial Analysis lists a price for).
Scoring note
Artificial Analysis changed its Speech Arena Elo between the captures of September 30, 2026 and October 1, 2026 without a new measurement date (1,117, then 1,118): the score uses the average, 1,117.5. The value shown is the latest.
Benchmark measurements
Artificial Analysis Speech Arena
- Speech Arena Elo (blind listener preference)
- 1,118
- Elo 95% interval (±)
- 13
- Arena rank
- 30
- Arena rank range
- 25-32
- Arena appearances
- 2,102
- Voices tested
- 8
- Price per 1M characters
- 20.2 USD
- Released
- May 2026
- Artificial Analysis model
- Async Pro v1.0
- Artificial Analysis leaderboard
- artificialanalysis.ai
Not collected
- Speed (Coval time to first audio) — not measured by Coval (capture of 2026-10-01, 30-day window); counts 0
- Speed (Speko time to first audio) — not measured by Speko (capture of 2026-10-01); counts 0
- Quality (Speko naturalness) — not measured by Speko (capture of 2026-10-01); counts 0
- Accuracy (Coval word error rate) — not measured by Coval (capture of 2026-10-01, 30-day window); counts 0
- Accuracy (Speko robustness) — not measured by Speko (capture of 2026-10-01); counts 0
- Price (Speko cost per 1M characters) — not measured by Speko (capture of 2026-10-01); counts 0
Similar TTS models
StepFun Step TTS 2 (Mar 2026)
Listed Proprietary · StepFun
8.3
/100
StepFun Step TTS 2 (Mar 2026) is a proprietary text-to-speech (TTS) API from StepFun, measured by one independent benchmark, Artificial Analysis.
Knowledge sharing Assistants Entertainment Customer service
+1
Google Gemini 2.5 Flash Lite TTS
Listed Proprietary · Google
7.8
/100
Google Gemini 2.5 Flash Lite TTS is a proprietary text-to-speech (TTS) API from Google, measured by one independent benchmark, Artificial Analysis.
Artificial Analysis