Free TTS API 2026: Xiaomi Mimo Text-to-Speech, Voice Clone & Voice Design

Good news for voice AI developers: Xiaomi's Mimo TTS models are now available on TokenPAPA — and they're completely free to use.

No token charges. No usage limits. No hidden fees. Just three powerful voice AI models at zero cost.

What's Available

Model Breakdown

1. mimo-v2.5-tts — Standard Text-to-Speech

Convert written text into natural-sounding speech. Supports multiple voices, adjustable speed, and various output formats.

Use cases:

• Voice assistants and chatbots
• Audiobook generation
• Accessibility tools
• Content creation (video narration, podcasts)
• Language learning apps

2. mimo-v2.5-tts-voiceclone — Voice Cloning

Upload a short audio sample (a few seconds of someone speaking), and the model generates speech in that exact voice. This is the only free voice cloning API we know of in 2026.

Use cases:

• Personalized voice assistants
• Dubbing and localization
• Preserving voices for accessibility
• Character voices for games

3. mimo-v2.5-tts-voicedesign — Custom Voice Design

Create completely synthetic voices by describing the characteristics you want — gender, age, accent, tone, and more. No audio sample needed.

Use cases:

• Brand voice design
• Synthetic narrators
• Custom voice actors for media
• Prototyping voice interfaces

Quick Start: Call Mimo TTS in 30 Seconds

Since Mimo TTS models are OpenAI-compatible, you can use any OpenAI SDK. Just change the base_url and model name.

Python

from openai import OpenAI
import base64

client = OpenAI(
    base_url="https://tokenpapa.ai/v1",
    api_key="your-tokenpapa-key"
)

# Generate speech
response = client.audio.speech.create(
    model="mimo-v2.5-tts",
    voice="alloy",
    input="Hello! This speech was generated by Xiaomi's Mimo TTS model, completely for free.",
)

# Save to file
response.stream_to_file("output.mp3")

cURL

# Download speech as MP3
curl https://tokenpapa.ai/v1/audio/speech \
  -H "Authorization: Bearer *** \
  -H "Content-Type: application/json" \
  -d '{
    "model": "mimo-v2.5-tts",
    "input": "This is free text to speech from Xiaomi Mimo.",
    "voice": "alloy",
    "response_format": "mp3",
    "speed": 1.0
  }' \
  --output speech.mp3

JavaScript

import OpenAI from 'openai';
import { writeFileSync } from 'fs';

const client = new OpenAI({
  baseURL: 'https://tokenpapa.ai/v1',
  apiKey: 'your-tokenpapa-key',
});

const response = await client.audio.speech.create({
  model: 'mimo-v2.5-tts',
  voice: 'alloy',
  input: 'Free text to speech from Xiaomi Mimo on TokenPAPA.',
});

const buffer = Buffer.from(await response.arrayBuffer());
writeFileSync('speech.mp3', buffer);

Comparing Mimo TTS with Other Providers

Bottom line: Mimo TTS on TokenPAPA is the only provider offering free voice cloning and voice design in 2026.

Sign Up and Start Speaking

Getting started takes less than a minute:

1. Sign up at tokenpapa.ai — no Chinese phone required
2. Get $2 free credits on signup (for non-TTS models)
3. Use Mimo TTS models at zero cost — they don't consume your credits

# Verify it works
from openai import OpenAI
client = OpenAI(base_url="https://tokenpapa.ai/v1", api_key="your-key")

# Quick test — should respond in seconds
response = client.audio.speech.create(
    model="mimo-v2.5-tts",
    voice="alloy",
    input="Mimo TTS is completely free on TokenPAPA!",
)
response.stream_to_file("test.mp3")
print("✅ Speech generated! Check test.mp3")

All three Mimo TTS models are available at no cost on TokenPAPA as of July 28, 2026. Pricing may change in the future. Standard signup credits apply to non-TTS models only.