Speech Arena Elo 1,226 on Artificial Analysis, latency not measured; ranked 41st of 112 in the TTS for Voice Agents 2026 index.
Benchmark summary: 11/100, ranked 41st of 112 in the TTS for Voice Agents 2026 index (Listed). Strongest criterion: voice quality, 9.2 of 20 points.
VUI Labs Luna TTS is a proprietary text-to-speech (TTS) API from VUI Labs, measured by one independent benchmark, Artificial Analysis.
Overall score
11 /100
Data checked on September 30, 2026
Updated after each benchmark capture
Every point comes from a public benchmark: sources · methodology
VUI Labs Luna TTS ranks 41st of 112 in the 2026 text-to-speech (TTS) API benchmark, with a score of 11/100.
Neither Coval nor Speko measures VUI Labs Luna TTS's latency, so it scores 0 of 60 on real-time speed and does not appear in the real-time ranking.
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.
In the Artificial Analysis Speech Arena (capture of October 1, 2026), VUI Labs Luna TTS has an Elo of 1,226 (±13, 95% confidence) from 2,804 blind comparisons, 8th highest of the 92 models Artificial Analysis rates.
Artificial Analysis lists VUI Labs Luna TTS at $15 per 1M characters (19th lowest of the 78 models Artificial Analysis lists a price for).
Artificial Analysis changed its Speech Arena Elo between the captures of September 30, 2026 and October 1, 2026 without a new measurement date (1,230, then 1,226): the score uses the average, 1,228. The value shown is the latest.
Alibaba Qwen-Audio-3.0-TTS-Plus is a proprietary text-to-speech (TTS) API from Alibaba (Qwen), measured by one independent benchmark, Artificial Analysis.
ElevenLabs Turbo v2.5 is a proprietary text-to-speech (TTS) API from ElevenLabs, measured by two independent benchmarks: Artificial Analysis and Speko.
MiniMax Speech 2.8 HD is a proprietary text-to-speech (TTS) API from MiniMax, measured by two independent benchmarks: Artificial Analysis and Speko.