{
  "publisher": "SpeechifyAI",
  "provenance": "SpeechifyAI's manually reviewed factual snapshot of the public Artificial Analysis Text to Speech Leaderboard, Controlled Voice view (English, US and UK; all models), read on 13 Nov 2026 and checked row by row against Artificial Analysis's announcement chart of the same day. It records the first 15 positions of the 51 models the board listed, and Simba 3.0's row at 27. This is not an official Artificial Analysis export or a new independent evaluation.",
  "capturedOn": "2026-11-13",
  "date": "13 Nov 2026",
  "board": "Text to Speech Leaderboard (Controlled Voice)",
  "sourceUrl": "https://artificialanalysis.ai/text-to-speech/leaderboard/controlled-voice",
  "overallUrl": "https://artificialanalysis.ai/text-to-speech/leaderboard",
  "methodologyUrl": "https://artificialanalysis.ai/methodology/text-to-speech",
  "scope": "Every model speaks in the same 8 cloned voices (4 US English, 4 UK English), judged by blind votes",
  "voices": 8,
  "modelsOnBoard": 51,
  "rowsRecorded": "positions 1 to 15, and Simba 3.0 at 27",
  "announcement": "Speechify's Simba 3.5 takes #1 in the Artificial Analysis Controlled Voice Arena, statistically level with HeyGen Voice.",
  "uncertainty": "ci is the half-width of the 95% Elo confidence interval; band is the range of positions Artificial Analysis gives a model. Intervals overlap, so a rank does not establish a guaranteed quality advantage over the models whose intervals it shares.",
  "rows": [
    { "rank": 1, "provider": "SpeechifyAI", "model": "Simba 3.5", "score": 1192, "ci": 17, "band": "1-3", "samples": 1783 },
    { "rank": 2, "provider": "HeyGen", "model": "HeyGen Voice", "score": 1190, "ci": 13, "band": "1-2", "samples": 2626 },
    { "rank": 3, "provider": "Alibaba", "model": "Qwen-Audio-3.1-TTS-Plus", "score": 1176, "ci": 12, "band": "3-4", "samples": 2968 },
    { "rank": 4, "provider": "HeyGen", "model": "HeyGen Voice Turbo", "score": 1174, "ci": 15, "band": "3-5", "samples": 2442 },
    { "rank": 5, "provider": "Alibaba", "model": "Qwen-Audio-3.1-TTS-Flash", "score": 1164, "ci": 18, "band": "3-8", "samples": 1540 },
    { "rank": 6, "provider": "ElevenLabs", "model": "Eleven v4 Turbo", "score": 1156, "ci": 12, "band": "5-8", "samples": 3327 },
    { "rank": 7, "provider": "ElevenLabs", "model": "Eleven v4", "score": 1155, "ci": 12, "band": "5-9", "samples": 3221 },
    { "rank": 8, "provider": "Cartesia", "model": "Sonic 3.6", "score": 1149, "ci": 12, "band": "6-9", "samples": 4014 },
    { "rank": 9, "provider": "Inworld", "model": "Realtime TTS-2", "score": 1144, "ci": 12, "band": "7-9", "samples": 3814 },
    { "rank": 10, "provider": "Alibaba", "model": "Qwen-Audio-3.0-TTS-Plus", "score": 1130, "ci": 12, "band": "10-11", "samples": 3596 },
    { "rank": 11, "provider": "Cartesia", "model": "Sonic 3.5", "score": 1118, "ci": 11, "band": "11", "samples": 6058 },
    { "rank": 12, "provider": "Smallest.ai", "model": "Lightning V3.1 Pro (Oct 2026)", "score": 1098, "ci": 15, "band": "12-13", "samples": 2255 },
    { "rank": 13, "provider": "AssemblyAI", "model": "AssemblyAI-TTS-1", "score": 1088, "ci": 15, "band": "12-17", "samples": 2134 },
    { "rank": 14, "provider": "SpeechifyAI", "model": "Simba 3.2", "score": 1082, "ci": 12, "band": "13-17", "samples": 3630 },
    { "rank": 15, "provider": "StepFun", "model": "StepAudio 2.5 TTS", "score": 1076, "ci": 11, "band": "14-18", "samples": 4486 },
    { "rank": 27, "provider": "SpeechifyAI", "model": "Simba 3.0", "score": 1035, "ci": 11, "band": "27-29", "samples": 3790 }
  ]
}