MiniMax Speech 2.8 HD API
MiniMax highest-fidelity multilingual speech for finished narration, streamed as it is spoken.
MiniMax Speech 2.8 HD is a text-to-speech model from MiniMax, available on OttoPort's OpenAI-compatible API as the model ID speech-2.8-hd at $121.32 / 1M characters as of 2026-10-14.
Provider
MiniMax
Price
$121.32 / 1M characters
Model ID
speech-2.8-hd
Type
text-to-speech model
Create with MiniMax Speech 2.8 HD
ttsYour result appears here
Start with the example prompt or make it your own. Your OttoPort account is used securely for generation.
MiniMax Speech 2.8 HD API pricing
What OttoPort bills for MiniMax Speech 2.8 HD, and what that works out to per unit. Rates are read from the same catalog the gateway meters against, and were current on 2026-10-14.
| Per 1M characters | $121.32 | |
|---|---|---|
| 1,000 characters | $0.1213 | roughly 150 spoken words |
| A 500-word script | $0.3336 | about 2,750 characters |
| Characters per $1 | 8,242 |
No subscription and no minimum — OttoPort bills prepaid credits against usage. See the full rate card.
Call MiniMax Speech 2.8 HD in three lines
Send "model": "speech-2.8-hd" to POST https://ottoport.ai/api/v1/audio/speech with an OttoPort key. No MiniMax account, no waitlist, no separate SDK.
curl https://ottoport.ai/api/v1/audio/speech \
-H "Authorization: Bearer $OTTOPORT_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "speech-2.8-hd",
"input": "Welcome to OttoPort.",
"format": "mp3"
}' --output speech.mp3import requests
audio = requests.post(
"https://ottoport.ai/api/v1/audio/speech",
headers={"Authorization": "Bearer " + API_KEY},
json={"model": "speech-2.8-hd", "input": "Welcome to OttoPort.", "format": "mp3"},
)
open("speech.mp3", "wb").write(audio.content)const res = await fetch("https://ottoport.ai/api/v1/audio/speech", {
method: "POST",
headers: {
Authorization: `Bearer ${API_KEY}`,
"Content-Type": "application/json",
},
body: JSON.stringify({
model: "speech-2.8-hd",
input: "Welcome to OttoPort.",
format: "mp3",
}),
});
const buffer = Buffer.from(await res.arrayBuffer());Before you start
- 1. Create a key at /api-keys.
- 2. Top up credits — the smallest pack is $25.
- 3. Paste the request. It returns on the same request.
Full reference at /docs, or drive it from an agent with the MCP server and CLI.
Request parameters
The body POST https://ottoport.ai/api/v1/audio/speech accepts for MiniMax Speech 2.8 HD.
| Field | Type | Required | Notes |
|---|---|---|---|
| model | string | Yes | Always speech-2.8-hd for MiniMax Speech 2.8 HD. |
| input | string | Yes | Text to speak. Characters are the billed unit. |
| voice | string | No | Provider voice identifier. |
| format | string | No | Audio container, e.g. `mp3`. |
MiniMax Speech 2.8 HD direct vs through OttoPort
MiniMax Speech 2.8 HD is the same model either way — what changes is how many accounts, keys, and integrations you carry to reach it.
| MiniMax direct | Via OttoPort | |
|---|---|---|
| Accounts and keys | A MiniMax account, plus one more for every other model you add | One OttoPort account and one key for the whole catalog |
| Request shape | MiniMax's own SDK and response format | OpenAI-compatible — point baseURL at OttoPort and change the model string |
| Switching models | A new integration per provider | Replace speech-2.8-hd with any other model ID in the catalog |
| Billing | A separate invoice and contract per provider | Prepaid credits, no subscription, one usage ledger |
| Provider outages | Your call fails | Configured backup routes are tried in order on provider failure |
Write for the ear, not the page.
Use punctuation to guide pauses.
Keep each generation focused on one tone.
MiniMax Speech 2.8 HD API questions
Cost, keys, and model IDs for MiniMax Speech 2.8 HD on OttoPort.
How much does the MiniMax Speech 2.8 HD API cost?
On OttoPort, MiniMax Speech 2.8 HD costs $121.32 / 1M characters as of 2026-10-14. For scale, a 500-word script: $0.3336. Billing is prepaid usage with no subscription and no minimum, and the current rate is always published at ottoport.ai/pricing.
How do I get a MiniMax Speech 2.8 HD API key?
You do not need a MiniMax key. Create an OttoPort account, generate a key at ottoport.ai/api-keys, and send it as "Authorization: Bearer <key>" to POST https://ottoport.ai/api/v1/audio/speech with "model": "speech-2.8-hd". The same key reaches every other model in the catalog.
What is the model ID for MiniMax Speech 2.8 HD?
The OttoPort model ID for MiniMax Speech 2.8 HD is speech-2.8-hd. Pass it as the model field on POST https://ottoport.ai/api/v1/audio/speech, or list it programmatically from GET https://ottoport.ai/api/v1/models.
Do I need a MiniMax account to use MiniMax Speech 2.8 HD?
No. OttoPort connects to MiniMax on your behalf, so one OttoPort account covers MiniMax Speech 2.8 HD and every other model in the catalog — no per-provider contracts, keys, or invoices.
Other text-to-speech models on the same API
Same endpoint, same key — swapping model is a one-string change from speech-2.8-hd.
MiniMax Speech 2.8 Turbo API
MiniMax
$72.79 / 1M characters
Seed Audio 1.0 API
ByteDance
$0.329 / request
ElevenLabs v3 API
ElevenLabs
$103.50 / 1M characters
Gemini 2.5 Flash TTS API
$11.50 / 1M characters
GPT-4o mini TTS API
OpenAI
$13.80 / 1M characters
ElevenLabs Turbo 2.5 API
ElevenLabs
$51.75 / 1M characters
Browse the full catalog — every model with its provider and per-unit price.