MiniMax Speech 2.8 Turbo

Text-to-Speech • MiniMax

minimax/speech-2.8-turbo

• Third-party
• Zero data retention

MiniMax Speech 2.8 Turbo turns text into natural, expressive speech with voice cloning, emotion control, and 40+ language support at faster speeds.

Usage

const response = await env.AI.run(
  'minimax/speech-2.8-turbo',
  {
    format: 'mp3',
    pitch: 0,
    speed: 1,
    text: 'Hello! Welcome to Cloudflare AI Gateway. Let me show you what we can do.',
    voice_id: 'English_expressive_narrator',
    volume: 1,
  },
)
console.log(response)

curl https://api.cloudflare.com/client/v4/accounts/$CLOUDFLARE_ACCOUNT_ID/ai/run \
  --header "Authorization: Bearer $CLOUDFLARE_API_TOKEN" \
  --header "Content-Type: application/json" \
  --data '{
  "model": "minimax/speech-2.8-turbo",
  "input": {
    "format": "mp3",
    "pitch": 0,
    "speed": 1,
    "text": "Hello! Welcome to Cloudflare AI Gateway. Let me show you what we can do.",
    "voice_id": "English_expressive_narrator",
    "volume": 1
  }
}'

{
  "gatewayMetadata": {
    "keySource": "Unified"
  },
  "result": {
    "audio": "https://pub-04a6d208d361438ea01b797e6973bd19.r2.dev/catalog/minimax__speech-2.8-turbo/simple-speech.mp3"
  },
  "state": "Completed"
}

Examples

<details>

<summary>Fast Narration — Speed up narration for quick playback</summary>

const response = await env.AI.run(
  'minimax/speech-2.8-turbo',
  {
    format: 'mp3',
    pitch: 0,
    speed: 1.5,
    text: 'This is a fast-paced summary of the key findings from the quarterly report. Revenue is up fifteen percent and user growth exceeded expectations.',
    voice_id: 'English_expressive_narrator',
    volume: 1,
  },
)
console.log(response)

curl https://api.cloudflare.com/client/v4/accounts/$CLOUDFLARE_ACCOUNT_ID/ai/run \
  --header "Authorization: Bearer $CLOUDFLARE_API_TOKEN" \
  --header "Content-Type: application/json" \
  --data '{
  "model": "minimax/speech-2.8-turbo",
  "input": {
    "format": "mp3",
    "pitch": 0,
    "speed": 1.5,
    "text": "This is a fast-paced summary of the key findings from the quarterly report. Revenue is up fifteen percent and user growth exceeded expectations.",
    "voice_id": "English_expressive_narrator",
    "volume": 1
  }
}'

{
  "gatewayMetadata": {
    "keySource": "Unified"
  },
  "result": {
    "audio": "https://pub-04a6d208d361438ea01b797e6973bd19.r2.dev/catalog/minimax__speech-2.8-turbo/fast-narration.mp3"
  },
  "state": "Completed"
}

</details>

<details>

<summary>Calm Tone — Calm and steady speech for meditation or relaxation</summary>

const response = await env.AI.run(
  'minimax/speech-2.8-turbo',
  {
    emotion: 'calm',
    format: 'mp3',
    pitch: 0,
    speed: 0.8,
    text: 'Take a deep breath in. Hold it for a moment. Now slowly exhale. Let your shoulders relax and release any tension.',
    voice_id: 'English_expressive_narrator',
    volume: 1,
  },
)
console.log(response)

curl https://api.cloudflare.com/client/v4/accounts/$CLOUDFLARE_ACCOUNT_ID/ai/run \
  --header "Authorization: Bearer $CLOUDFLARE_API_TOKEN" \
  --header "Content-Type: application/json" \
  --data '{
  "model": "minimax/speech-2.8-turbo",
  "input": {
    "emotion": "calm",
    "format": "mp3",
    "pitch": 0,
    "speed": 0.8,
    "text": "Take a deep breath in. Hold it for a moment. Now slowly exhale. Let your shoulders relax and release any tension.",
    "voice_id": "English_expressive_narrator",
    "volume": 1
  }
}'

{
  "gatewayMetadata": {
    "keySource": "Unified"
  },
  "result": {
    "audio": "https://pub-04a6d208d361438ea01b797e6973bd19.r2.dev/catalog/minimax__speech-2.8-turbo/calm-tone.mp3"
  },
  "state": "Completed"
}

</details>

<details>

<summary>Adjusted Pitch — Lower the pitch for a deeper voice</summary>

const response = await env.AI.run(
  'minimax/speech-2.8-turbo',
  {
    format: 'mp3',
    pitch: -6,
    speed: 1,
    text: 'Good evening. Tonight we explore the mysteries of the deep ocean and the creatures that live in total darkness.',
    voice_id: 'English_expressive_narrator',
    volume: 1,
  },
)
console.log(response)

curl https://api.cloudflare.com/client/v4/accounts/$CLOUDFLARE_ACCOUNT_ID/ai/run \
  --header "Authorization: Bearer $CLOUDFLARE_API_TOKEN" \
  --header "Content-Type: application/json" \
  --data '{
  "model": "minimax/speech-2.8-turbo",
  "input": {
    "format": "mp3",
    "pitch": -6,
    "speed": 1,
    "text": "Good evening. Tonight we explore the mysteries of the deep ocean and the creatures that live in total darkness.",
    "voice_id": "English_expressive_narrator",
    "volume": 1
  }
}'

{
  "gatewayMetadata": {
    "keySource": "Unified"
  },
  "result": {
    "audio": "https://pub-04a6d208d361438ea01b797e6973bd19.r2.dev/catalog/minimax__speech-2.8-turbo/adjusted-pitch.mp3"
  },
  "state": "Completed"
}

</details>

Parameters

text

stringrequiredmaxLength: 10000The text to convert to speech. Maximum 10,000 characters.

voice_id

stringrequireddefault: English_expressive_narratorThe voice ID to use for synthesis

speed

numberrequireddefault: 1minimum: 0.5maximum: 2Speech speed (0.5 to 2)

volume

numberrequireddefault: 1minimum: 0maximum: 10Speech volume (0 to 10)

pitch

integerrequireddefault: 0minimum: -12maximum: 12Pitch adjustment (-12 to 12)

emotion

stringenum: happy, sad, angry, fearful, disgusted, surprised, calm, fluentEmotion control for synthesized speech

format

stringrequireddefault: mp3enum: mp3, flac, wavOutput audio format

▶sample_rate

one of

audio

stringURL to the generated audio file

API Schemas (Raw)

Input Open Download

Output Open Download

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description: Kimi K3 is Moonshot's flagship 2.8 trillion-parameter model, built on Kimi Delta Attention (a hybrid linear attention mechanism) with Attention Residuals. It offers native visual understanding, always-on reasoning, and a 1M-token context window for long-horizon coding, knowledge work, and deep reasoning tasks. title: Kimi K3 image: https://developers.cloudflare.com/og-docs.png

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