MiniMax Voice Design

minimax/voice-design

MiniMax Voice Design by MiniMax creates a new reusable voice from a text description of its timbre, age, and style, and returns a spoken preview.

Base price
$3.00USD / run
Execution
async
Model type
audio
Input fields
2
Production route

Try the model

Playground

Open playground
Input
Voice description prompt for generating a personalized voice
Text for audio preview. Limited to 500 characters. A fee of $30 per 1M characters will be charged for the generation of the preview audio.
OutputExample

Examples

Select an example to load its inputs and result into the playground.

Model card

Specifications

Pricing

Base price
$3 / run

Context & modalities

Input
Schema-defined
Output
audio

Capabilities

Chat
Not supported
Vision
Not supported
Reasoning
Not supported
Structured output
Not supported
Function calling
Not supported
Audio input
Not supported

Access

Provider
MiniMax
Model ID
minimax/voice-design
Execution
async
Base URL
https://api.sandbase.ai
API
Unified Run API
Endpoint
/v1/run

API README

MiniMax Voice Design

Design a new reusable voice from a text description of its timbre, age, and style. The response includes the voice ID and a spoken preview.

Fields

FieldTypeDefaultNotes
promptstring, required—Describe the voice: gender, age, timbre, accent, and mood.
preview_textstring—Sentence spoken in the new voice.

Billing

$3.00 per designed voice plus $0.03 per started 1,000 description characters.

RequestPrice
One voice$3.00

Failed runs are not charged.

Prompting

  • Be concrete: “warm, low female voice in her 40s, slight British accent, calm”.

Limits

  • Use the returned voice ID as voice_id in MiniMax Speech.

Also on SandBase

Related: minimax/speech/2.8/hd, minimax/speech/2.8/turbo, minimax/voice-clone.

Start building

Send your first request

OpenAI-compatible endpoint with unified authentication and usage tracking.

Production API
Unified Run API endpoint
https://api.sandbase.ai/v1/run
Model ID
minimax/voice-design
# The quoted heredoc keeps Unicode and shell metacharacters unchanged.
result=$(curl --fail-with-body --silent \
  -X POST "https://api.sandbase.ai/v1/run" \
  -H "Authorization: Bearer $SANDBASE_API_KEY" \
  -H "Content-Type: application/json" \
  --data-binary @- <<'SANDBASE_JSON'
{
  "model": "minimax/voice-design",
  "prompt": "Bubbly and excitable female pop star interviewee, youthful, slightly breathless, and very enthusiastic",
  "preview_text": "Oh my gosh, hi. It's like so amazing to be here. This new endpoint just dropped on fal and the results have been like totally incredible. Use it now, It's gonna be like epic!"
}
SANDBASE_JSON
)
run_id=$(printf '%s' "$result" | jq -r .id)
for attempt in $(seq 1 120); do
  status=$(printf '%s' "$result" | jq -r .status)
  case "$status" in completed|failed|timeout) break ;; esac
  sleep 2
  result=$(curl --fail-with-body --silent \
    -H "Authorization: Bearer $SANDBASE_API_KEY" \
    "https://api.sandbase.ai/v1/run/$run_id")
done
status=$(printf '%s' "$result" | jq -r .status)
[ "$status" = completed ] || { echo "Generation ended: $status" >&2; exit 1; }
printf '%s\n' "$result"

Choose your model

Compare models

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ModelTypeDefault priceReleased
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MiniMaxAudio$0.06 / runOct 29, 2025

Questions

FAQ

How do I call MiniMax Voice Design through SandBase?

Create a SandBase API key, then send requests with the model ID "minimax/voice-design" to Unified Run API (/v1/run) at https://api.sandbase.ai. The request examples on this page show the exact payload.

Do I need a separate MiniMax account?

No. One SandBase API key and balance gives you access to MiniMax Voice Design and the other models in the catalog; you do not need to sign up with MiniMax separately.