Speech 2.8 Turbo API

minimax/speech-2.8-turbo
MiniMax Speech 2.8 Turbo is a fast, highly responsive text-to-speech model built for applications where timing matters as much as quality.
Output
$78 / 1M
Released
Apr 13, 2026

Overview

What Is Speech 2.8 Turbo API?

MiniMax Speech 2.8 Turbo is a performance-optimized version of the Speech 2.8 model family. Instead of pushing maximum audio fidelity, it prioritizes speed, responsiveness, and stability under load. The result is a model that feels fluid in real-time interactions while still maintaining a convincing level of vocal realism.

Under the hood, it relies on a Transformer-based architecture with a speaker representation layer, allowing it to generate consistent, identity-driven voices and adapt quickly to different speaking styles. This structure also enables zero-shot voice cloning, where a short audio sample is enough to approximate a new voice.

Performance & Architecture

Attribute Details
Model Type Autoregressive Transformer
Voice Cloning Zero-shot (speaker encoder)
Latency ~200–250 ms
Max Input ~10,000 characters
Streaming Supported
Architecture Enhancements Flow-VAE decoder for realism

Core Capabilities

Natural and Continuous Speech

The model is designed to sound natural without slowing systems down. Speech output feels continuous and well-paced, avoiding the robotic cadence typical of older TTS systems. Emotional tone is not an afterthoughtit , can be shaped deliberately, giving the output a sense of intent rather than neutrality.

Zero-Shot Voice Cloning

Voice cloning works without lengthy setup. A short reference clip can be enough to reproduce tone, rhythm, and general vocal character, which is especially useful when consistency across sessions or characters is required.

Multilingual Coverage

Language support extends across dozens of languages and dialects, making the model suitable for products that operate across regions. Instead of treating localization as a separate layer, speech generation can remain unified across different markets.

Control and Customization

MiniMax Speech 2.8 Turbo gives developers precise control over how speech is delivered. Parameters such as speed, pitch, and volume can be adjusted in a predictable way, allowing teams to fine-tune output to match a product’s tone or UX requirements.

Emotion can also be guided directly. Rather than relying on implicit tone, the model supports intentional delivery styles, which is particularly useful in storytelling, guided experiences, or branded voice interactions.

Audio output can be configured in standard formats such as WAV or MP3, with flexibility around sampling and encoding. This makes it easier to integrate the model into different pipelines without additional processing layers.

Naturalness and Expressive Detail

One of the more noticeable strengths of the Turbo variant is how it handles small, human-like details. Subtle pauses, shifts in emphasis, and non-verbal cues can be incorporated into speech, helping the output feel less synthetic.

This becomes especially important in conversational systems. When responses include variation in pacing or tone, interactions feel less scripted and more adaptive. Over time, this has a measurable impact on perceived quality, even if raw audio fidelity is not at its absolute peak.

API Pricing

  • $78 per 1M characters

Performance Profile

MiniMax Speech 2.8 Turbo is built for environments where latency directly affects user experience. Response times are kept low enough to support live conversations, while throughput remains stable under concurrent usage.

Compared to higher-fidelity variants, the trade-off is deliberate. Instead of maximizing nuance in long-form narration, the model focuses on maintaining consistent speed and responsiveness across repeated calls and real-time sessions.

Turbo vs HD

The difference between Turbo and HD comes down to priorities. The HD version leans toward richer tonal depth and is better suited for long-form narration, where subtle emotional gradients matter more than speed.

Turbo, on the other hand, is optimized for immediacy. It performs best in systems where responses must feel instant — voice assistants, live chat interfaces, or interactive agents. In these cases, a slight reduction in audio richness is often outweighed by a smoother, faster experience.

Use Cases

Voice Assistants and Conversational Systems

MiniMax Speech 2.8 Turbo fits naturally into products that rely on continuous interaction. Voice assistants benefit from reduced response lag, making conversations feel more fluid and responsive, especially in real-time dialogue scenarios.

Interactive Applications and Games

Interactive environments, including games and virtual worlds, can use the model to generate character dialogue dynamically. This allows conversations to unfold in real time without breaking immersion or relying on pre-recorded voice lines.

Scalable Content and Localization

The model also performs well in large-scale voice generation tasks such as video narration or multilingual content production. It is particularly effective in workflows where speed and turnaround time are more important than studio-level audio refinement.

Developer Experience

Integration is straightforward and predictable. The model accepts text input, applies voice and style parameters, and returns audio output with minimal overhead. It supports both synchronous and streaming workflows, which allows developers to choose between immediate playback and progressive audio delivery.

Because the model is stateless by design, it can be scaled across distributed systems without complex session management. This simplifies deployment in modern architectures where concurrency and reliability are key concerns.

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Uptime and performance

  • Uptime (24h): 100%
  • Uptime (7d): 100%
  • Availability (24h): 100%
  • Error rate (24h): 0%

Measured on the AI/ML API gateway across live traffic. Figures are medians unless stated. Last updated 2026-10-12.

Use cases

Real-time voice assistants are a documented fit for Speech 2.8 Turbo, especially where low latency and interactive responses matter. It is described as suited to real-time assistants and interactive applications, including live voice-driven experiences.

IVR systems are another documented use case. The model is described as suitable for interactive voice response workflows where responsive, natural-sounding prompts are needed.

High-volume narration is also documented. Sources describe it as suited to large-scale narration workflows and rapid iteration, including bulk audio generation.

Interactive content is listed as a fit as well. The model is described as useful for content that needs fast voice generation during engagement-heavy experiences.

How to use Speech 2.8 Turbo API

Install any OpenAI-compatible SDK, point it at api.aimlapi.com/v1, and set the model to minimax/speech-2.8-turbo.
import requests

r = requests.post(
    "https://api.aimlapi.com/v1/tts",
    headers={"Authorization": "Bearer " + AIMLAPI_KEY},
    json={
      "model": "minimax/speech-2.8-turbo",
      "text": "Hello from AI/ML API"
    },
)
print(r.json()["audio"])  # URL to the generated audio
const r = await fetch("https://api.aimlapi.com/v1/tts", {
  method: "POST",
  headers: {
    Authorization: `Bearer ${process.env.AIMLAPI_KEY}`,
    "Content-Type": "application/json",
  },
  body: JSON.stringify({
    "model": "minimax/speech-2.8-turbo",
    "text": "Hello from AI/ML API"
  }),
});
const { audio } = await r.json();
console.log(audio); // URL to the generated audio
curl -X POST https://api.aimlapi.com/v1/tts \
  -H "Authorization: Bearer $AIMLAPI_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"minimax/speech-2.8-turbo","text":"Hello from AI/ML API"}'

# the JSON response contains "audio" — a URL to the generated speech

OpenAI-compatible — swap the base URL and it works with your existing SDK.

Speech 2.8 Turbo API Pricing

TypePrice
Input
$78 / 1M characters
Output
$78 / 1M

Speech 2.8 Turbo Benchmarks

BenchmarkScoreWhat it measuresSourceRetrieved
TTS Arena
1151
Human preference Elo from blind pairwise listening comparisons of speech samples, measured independently by Artificial AnalysisSourceSeptember 28, 2026

Speech 2.8 Turbo vs other models

ModelInputOutputContextBest for
$78 / 1M characters
$78 / 1M
Speech synthesis
$130 / 1M characters
$130 / 1M
Speech synthesis
$130 / 1M characters
$0.13 / 1M tokens
Speech synthesis
$78 / 1M characters
$0.078 / 1M tokens
Speech synthesis
$13 / 1M characters
$0.013 / 1M tokens
Speech synthesis

Frequently asked questions

Speech 2.8 Turbo takes text as input and returns audio.

Speech 2.8 Turbo became available on April 13, 2026.

Speech 2.8 Turbo is priced at $78 / 1M.

Speech 2.8 Turbo is billed per generation — a fixed charge per output rather than by prompt length.

Speech 2.8 Turbo was built by MiniMax.

Send a request to https://api.aimlapi.com/v1/tts with minimax/speech-2.8-turbo as the model id.

Yes. Speech 2.8 Turbo is served through AI/ML API, so the same key and endpoint format used for other models applies.

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