Voice AI BenchmarksBy

PROVIDERLAST 30 DAYS

official resource

MiniMax voice AI models and benchmarks

MiniMax develops generative audio models and hosts the measured Speech 2.8 HD and Turbo synthesis endpoints.

Measured models
2
TTS
Best TTS model#16 / 30
411ms
Speech 2.8 Turbo

Overview

Within the Speech 2.8 family, HD targets quality while Turbo targets speed.

Every model below is measured daily on the same fixed inputs and ranked against the full field, never blended into a company score.

Model lineup

Text-to-Speech
Speech 2.8 HD, Speech 2.8 Turbo

Text-to-Speech

Full TTS dashboard

Ranked on Time to First Audio against 30 measured models.

Time to First Audioms · lower is better · MiniMax models markedEvery measured TTS model on Time to First Audio, with MiniMax's models highlighted.
  1. #1Palabra TTS v1116 ms
  2. #2vui124 ms
  3. #3TTS Flash 2128 ms
  4. #4TTS 2176 ms
  5. #5Blizzard235 ms
  6. #6Neural236 ms
  7. #7Mist v3256 ms
  8. #16Speech 2.8 Turbo411 ms
  9. #21Speech 2.8 HD460 ms
leaders plus MiniMax models · 21 other models in the full table
Word Error Rate% · lower is better · MiniMax models markedEvery measured TTS model on Word Error Rate, with MiniMax's models highlighted.
  1. #1TTS RT v13.7%
  2. #2TTS Rt v23.9%
  3. #3Neural4.3%
  4. #4Eleven v3 Conversational4.4%
  5. #5Lightning v3.1 Pro4.4%
  6. #6Default4.6%
  7. #7S2.1 Pro4.6%
  8. #10Speech 2.8 HD4.7%
  9. #14Speech 2.8 Turbo4.8%
leaders plus MiniMax models · 21 other models in the full table
TTFA vs WER — MiniMax vs every measured modelEach point is one measured TTS model · MiniMax models highlighted · 30-day averagesTime to First Audio against Word Error Rate for every measured TTS model, with MiniMax's models highlighted.
Palabra TTS v1 — 116 ms, 5.9%vui — 124 ms, 7.9%TTS Flash 2 — 128 ms, 4.9%TTS 2 — 176 ms, 4.8%Blizzard — 235 ms, 7.4%Neural — 236 ms, 4.3%Mist v3 — 256 ms, 6.3%TTS Rt v2 — 262 ms, 3.9%Sonic 3.5 — 274 ms, 6.1%TTS RT v1 — 275 ms, 3.7%Dragon HD Latest — 310 ms, 5.1%Coda — 313 ms, 5.2%Aura 2 — 328 ms, 5.3%S2.1 Pro — 374 ms, 4.6%Default — 384 ms, 4.6%Eleven v3 Conversational — 412 ms, 4.4%Grok TTS — 420 ms, 4.7%S1 — 434 ms, 4.9%Flash v2.5 — 455 ms, 6.7%Sonic 3.6 — 466 ms, 5.5%Simba 3.2 — 484 ms, 4.7%Chirp 3 HD — 512 ms, 5.2%Simba 3.0 — 526 ms, 5.3%Falcon 2 — 549 ms, 5.2%Lightning v3.1 Pro — 586 ms, 4.4%Qwen3 TTS Flash Realtime — 645 ms, 8.8%S2.1 Pro Free — 806 ms, 4.7%GPT-4o mini TTS — 1075 ms, 4.8%Speech 2.8 Turbo — 411 ms, 4.8%Speech 2.8 HD — 460 ms, 4.7%
Benchmarked models with their Time to First Audio over the last 30 days.
ModelHostTTFARank
Speech 2.8 HDMiniMax460 ms21st of 30
Speech 2.8 TurboMiniMax411 ms16th of 30

Limits of this comparison

  • Coval does not infer subjective quality from `HD` or speed from `Turbo`, and it does not score cloning or emotion fidelity.

Official resources

Same datasets, prompts and metric definitions for every model, measured by Coval’s open-source runner. Full methodology on the overview.

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