Paxa TTS Flash v1 Paxa · text-to-speech (TTS) API
362 ms time to first audio on Speko's board (read October 22, 2026); not measured by Coval, so no speed tier.
Benchmark summary: No speed tier: Coval, the source of the tiers, does not measure this model.
Paxa TTS Flash v1 is a text-to-speech (TTS) API from Paxa, measured by one independent benchmark, Speko.
Speed tier
Not measured by Coval
No speed tier: Coval, the source of the tiers, does not measure this model.
- Median time to first audioCoval, 30 days
- —
- P95 time to first audio (slow turns)Coval, 30 days
- —
- Naturalness EloSpeko
- 1325
- Listener Elo (95% interval)Artificial Analysis
- not rated
- Numbers and dates (0 to 1)Speko
- 0.25
- List price per 1M charactersall sources
- $10
Data read October 22, 2026. No combined score: methodology
Gradium TTS vs Paxa TTS Flash v1 Fastest TTS APIs, by speed tierSpeed
Speko's board plots it at 362 ms time to first audio from US East; its model page reports a 389 ms sweep.
Voice quality
Speko rates its naturalness at 1,325 Elo from blind A/B votes on phone-agent lines (42nd highest of the 43 models Speko rates).
Numbers and dates
Speko's pronunciation test on numbers, dates and currency scores it 0.25 on a 0-to-1 scale (19th 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.
Languages tested
Tested in Thai by Artificial Analysis or Speko. A language missing here was not tested, which does not mean it is unsupported.
Benchmark measurements
Speko
- P50 TTFA, US East
- 389 ms
- Naturalness (Elo)
- 1,325
- Pronunciation robustness (0 to 1)
- 0.25
- Voice drift (lower is steadier)
- 0
- Price per 1M characters
- 10 USD
- Measured on
- 2026-09-28
- Speko model
- paxa-tts-flash-v1
- Speko model page
- benchmarks.speko.ai
- Time to first audio, board chart
- 362 ms
Price (all sources)
- Lowest list price per 1M characters
- 10 USD
- Highest list price per 1M characters
- 10 USD
Not collected
- Speed (Coval median time to first audio) — not measured by Coval (reading of 2026-10-22, 30-day window)
- Speed (Coval P95 time to first audio) — not measured by Coval (reading of 2026-10-22, 30-day window)
- Listener rating (Artificial Analysis Speech Arena Elo) — not measured by Artificial Analysis (reading of 2026-10-22)
- Price (Artificial Analysis price per 1M characters) — not measured by Artificial Analysis (reading of 2026-10-22)
- Website — not yet verified (provider first listed on 2026-10-22)
- Access — license not published by Artificial Analysis or Coval, no official weights release found