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MiniMax Speech 2.8 HD vs TTS-1 HD

Pricing per million tokens, context window, capabilities — pulled from each provider's public docs. All 2 are available via the same AIgateway OpenAI-compatible endpoint; flip the model string to switch.

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MiniMax Speech 2.8 HD
minimax/speech-2.8-hd
TTS-1 HD
openai/tts-1-hd
Provider
MiniMax
OpenAI
Family
MiniMax Speech
Modality
audio-tts
audio-tts
Context window
Max output
Released
2026-05-22
2026-05-22
License
Proprietary
Open-weight
Per 1K chars
$0.100 /1K ch
$0.030 /1K ch
Tools
Streaming
Vision
JSON mode
Reasoning
Prompt caching
Batch API
Try it
View model →
View model →
MiniMax Speech 2.8 HD
minimax/speech-2.8-hd
Full spec →

MiniMax Speech 2.8 HD focuses on studio-grade audio generation with emotion control, multilingual support (40+ languages), and voice cloning.

Strengths
  • Natural speech synthesis
Use cases
VoiceoversIVRAudiobooks
TTS-1 HD
openai/tts-1-hd
Full spec →

OpenAI's high-definition text-to-speech model producing higher quality audio output.

Strengths
  • Natural speech synthesis
Use cases
VoiceoversIVRAudiobooks
SWITCH BETWEEN THEM

One key, all 2, one line different.

from openai import OpenAI

client = OpenAI(
    base_url="https://api.aigateway.sh/v1",
    api_key="sk-aig-...",
)

# MiniMax Speech 2.8 HD
client.chat.completions.create(
    model="minimax/speech-2.8-hd",
    messages=[{"role":"user","content":"hello"}],
)

# TTS-1 HD
client.chat.completions.create(
    model="openai/tts-1-hd",
    messages=[{"role":"user","content":"hello"}],
)
Get an AIgateway keyRun an eval on these →