MiniMax: Speech 2.8 HD
Speech 2.8 HD synthesizes expressive speech with control over emotion and audio details such as breathing and laughter.
About the model
This description covers the model’s capabilities. Available in Ailoot inputs, outputs and options are listed for the selected method below.
Lifelike speech with small audio details
Speech 2.8 HD targets natural, clean sound. The generation's main feature is audio markers that allow conversational details to be included in speech: laughter, chuckling, breathing, inhaling, exhaling, sighing, coughing, throat clearing and other short sounds. They help convey the rhythm and pauses of a natural line without turning every phrase into uniform announcer-style reading.
Markers are inserted into the text in the form specified for the model: for example, (chuckle), (breath) and (sighs) indicate the corresponding vocal actions. Audio-marker capability belongs specifically to Speech 2.8. These are vocal details within speech synthesis, not generation of a separate musical or sound composition.
Timbre and clarity
The manufacturer highlights reproduction of distinctive voice characteristics: texture, breathing and pronunciation style. Family capabilities include synthesis with an already prepared cloned voice; creating that voice is a separate process. Speech 2.8 also has reworked processing to reduce background noise and digital distortions.
Languages and expressiveness
Speech 2.8 supports 40 languages, including Russian. The manufacturer separately describes work on cross-language pronunciation in a Chinese-Japanese combination. This scenario concerns preserving natural sound when using different languages, not automatic text translation.
MiniMax provides voice selection and control over pace, volume and pitch. Speed ranges from 0.5–2, volume is above 0 and up to 10, and pitch adjustment ranges from −12 to 12. Emotion can be left to the model according to the text's meaning or specified manually: joy, sadness, anger, fear, disgust, surprise or calm.
Pronunciation can be refined using a replacement dictionary and phonetic notation; these provide the International Phonetic Alphabet, Chinese pinyin and Japanese reading variants. Pauses are inserted between spoken passages in the range 0.01–99.99 seconds. Pause duration is specified to two decimal places; markers are placed between spoken passages and not consecutively. These settings help align names, abbreviations and ambiguous words with the intended narration.
Audio result
Synthesis accepts text of fewer than 10,000 characters. For long text exceeding 3000 characters, the manufacturer recommends streaming output; receiving completed audio in full is also provided. General synthesis settings include MP3, PCM, FLAC, WAV, Opus and G.711 μ-law variants, in mono or stereo; the available formats for a specific request are determined by Ailoot's controls.
This card turns text into speech audio. Voice settings describe the MiniMax model; creation of a voice clone, separate subtitles and specialized connection methods are not automatically included in a text-to-speech request.
Additional audio settings include sample rates of 8, 16, 22.05, 24, 32 and 44.1 kHz. MP3 provides bitrates of 32, 64, 128 or 256 kbps. Voice coloration can also be changed and one effect applied: spacious echo, hall echo, telephone sound or a robotic voice. Voice-modification effects are supported for MP3, WAV and FLAC when receiving the audio in full, and only for MP3 when streaming. G.711 μ-law formats use an 8 kHz sample rate. These capabilities belong to MiniMax's synthesis settings.
The manufacturer provides speech-text synchronization: sentence timestamps, word timestamps or word timestamps during incremental output. This result helps align speech with displayed text. This additional capability requires support for the corresponding response format.
Ailoot Ultra · Text to speech POST /v1/audio/speech minimax/speech-2.8-hd
minimax/speech-2.8-hdOverview
Speech 2.8 HD synthesizes expressive speech with control over emotion and audio details such as breathing and laughter.
- Accepted inputs
- Text
- Results
- Audio
Available in Ailoot · inputs & methods
Ailoot Ultra · Text to speech POST /v1/audio/speech
- Input types
text- Output types
audio- Output format
- mp3
| Field | Type | Requirement | Values & limits | Default |
|---|---|---|---|---|
Fieldmodel | Typestring | RequirementRequired | Values & limits minimax/speech-2.8-hd | Default— |
Fieldinput | Typestring | RequirementRequired | Values & limits Minimum length: 1 Unit: Unicode characters | Default— |
Fieldvoice | Typestring | RequirementRequired | Values & limits English_expressive_narrator, English_radiant_girl, English_magnetic_voiced_man, English_compelling_lady1, English_Aussie_Bloke, English_captivating_female1, English_Upbeat_Woman, English_Trustworth_Man, English_CalmWoman, English_UpsetGirl, English_Gentle-voiced_man, English_Whispering_girl, English_Diligent_Man, English_Graceful_Lady, English_ReservedYoungMan, English_PlayfulGirl, English_ManWithDeepVoice, English_MaturePartner, English_FriendlyPerson, English_MatureBoss, English_Debator, English_LovelyGirl, English_Steadymentor, English_Deep-VoicedGentleman, English_Wiselady, English_CaptivatingStoryteller, English_DecentYoungMan, English_SentimentalLady, English_ImposingManner, English_SadTeen, English_PassionateWarrior, English_WiseScholar, English_Soft-spokenGirl, English_SereneWoman, English_ConfidentWoman, English_PatientMan, English_Comedian, English_BossyLeader, English_Strong-WilledBoy, English_StressedLady, English_AssertiveQueen, English_AnimeCharacter, English_Jovialman, English_WhimsicalGirl, English_Kind-heartedGirl | Default— |
Fieldresponse_format | Typestring | RequirementRequired | Values & limits mp3 | Default— |
Input material combinations
text_to_speech · Required: input
Method parameters and lifecycle
| Parameter | Contract |
|---|---|
Parametercontent_type | Contractapplication/json |
Parameterrequired | Contractmodel, input, voice, response_format |
Parametervoice_ids | ContractEnglish_expressive_narrator, English_radiant_girl, English_magnetic_voiced_man, English_compelling_lady1, English_Aussie_Bloke, English_captivating_female1, English_Upbeat_Woman, English_Trustworth_Man, English_CalmWoman, English_UpsetGirl, English_Gentle-voiced_man, English_Whispering_girl, English_Diligent_Man, English_Graceful_Lady, English_ReservedYoungMan, English_PlayfulGirl, English_ManWithDeepVoice, English_MaturePartner, English_FriendlyPerson, English_MatureBoss, English_Debator, English_LovelyGirl, English_Steadymentor, English_Deep-VoicedGentleman, English_Wiselady, English_CaptivatingStoryteller, English_DecentYoungMan, English_SentimentalLady, English_ImposingManner, English_SadTeen, English_PassionateWarrior, English_WiseScholar, English_Soft-spokenGirl, English_SereneWoman, English_ConfidentWoman, English_PatientMan, English_Comedian, English_BossyLeader, English_Strong-WilledBoy, English_StressedLady, English_AssertiveQueen, English_AnimeCharacter, English_Jovialman, English_WhimsicalGirl, English_Kind-heartedGirl |
Parameterresponse_format | Contractmp3 |
Parametermax_input_characters | Contractnull |
Parameterother_options | Contractfalse |
Parameterinput | Contractexact UTF-8 text; Unicode character count without normalization |
Parametermaterial_types | Contracttext |
Lifecycle: synchronous_result_then_owned_library
GET /v1/media/tasks/{task_id} · actual returned task_id or media library record
GET /v1/media/assets/{asset_id}/content
GET /v1/media/assets
GET /v1/media/assets/{asset_id}
Select exact voice from this model profile.
Input characters and audio seconds are different meters.
Pricing
Tariff references do not add request options. Supported parameters are listed for the selected method.
- Fast mode
- Not specified When fast mode is selected
- Flex mode
- Not specified When flex mode is selected
- Maximum reasoning effort
- Not specified When maximum reasoning effort uses the default adjustment
Ailoot rates
Prices by configuration
Match each charge to the conditions shown. Use one rate for each set of alternative configurations.
| Configuration | Rate schedule | Billable quantity | Billing unit | Charge |
|---|---|---|---|---|
| ConfigurationBase token rates | Rate scheduleBase rate | Billable quantity— | Billing unit— | Charge Input · Input tokens — / 1K tokens Output · Output tokens — / 1K tokens Input · Cache read — / 1K tokens Input · Cache write — / 1K tokens Input · Cache write, 1 hour — / 1K tokens |
| ConfigurationUltra | Rate schedule— | Billable quantityEach Unicode code point counts as one character, including Han characters. | Billing unitper 1000 input character | Charge Input · input character $0.2 per 1000 input character |
Reference tariff details
Model-level reference schedules do not change method selection, quotes or charges. Active charges use the selected Ailoot method rates.
MiniMax: Speech 2.8 HD
Prices by configuration
| Configuration | Billing conditions | Charge |
|---|---|---|
| ConfigurationMiniMax: Speech 2.8 HD · Default configuration | Billing conditionsDefault configuration | Charge Input · Input characters $0.0002 per input character |
Ailoot reserves an estimated amount before a request. After the result, it settles the final charge from measured usage. Streaming settlement uses the final usage record. How reservation and settlement work →
Example requests
Ailoot Ultra · Text to speech
set -eu
: "${AILOOT_API_KEY:?Set your Ailoot API key}"
: "${AILOOT_VOICE_ID:?Choose an accepted voice ID from this exact model profile}"
export AILOOT_VOICE_ID
python3 - <<'PY_REQUEST'
import json,os
from pathlib import Path
p=json.loads('{"model": "minimax/speech-2.8-hd", "input": "Good afternoon! This is a short voice take."}')
voice=os.environ["AILOOT_VOICE_ID"]
allowed=json.loads('["English_expressive_narrator", "English_radiant_girl", "English_magnetic_voiced_man", "English_compelling_lady1", "English_Aussie_Bloke", "English_captivating_female1", "English_Upbeat_Woman", "English_Trustworth_Man", "English_CalmWoman", "English_UpsetGirl", "English_Gentle-voiced_man", "English_Whispering_girl", "English_Diligent_Man", "English_Graceful_Lady", "English_ReservedYoungMan", "English_PlayfulGirl", "English_ManWithDeepVoice", "English_MaturePartner", "English_FriendlyPerson", "English_MatureBoss", "English_Debator", "English_LovelyGirl", "English_Steadymentor", "English_Deep-VoicedGentleman", "English_Wiselady", "English_CaptivatingStoryteller", "English_DecentYoungMan", "English_SentimentalLady", "English_ImposingManner", "English_SadTeen", "English_PassionateWarrior", "English_WiseScholar", "English_Soft-spokenGirl", "English_SereneWoman", "English_ConfidentWoman", "English_PatientMan", "English_Comedian", "English_BossyLeader", "English_Strong-WilledBoy", "English_StressedLady", "English_AssertiveQueen", "English_AnimeCharacter", "English_Jovialman", "English_WhimsicalGirl", "English_Kind-heartedGirl"]')
if voice not in allowed: raise SystemExit("Choose an accepted voice ID from this exact model profile")
p["voice"]=voice
p["response_format"]="mp3"
Path("request.json").write_text(json.dumps(p,ensure_ascii=False))
PY_REQUEST
curl --fail-with-body --silent --show-error https://api.ailoot.ai/v1/audio/speech \
-H "Authorization: Bearer $AILOOT_API_KEY" -H 'Content-Type: application/json' \
--data-binary @request.json -D response-headers.txt -o speech.mp3
Receive and save results
Ailoot Ultra · Text to speech
mp3
GET /v1/media/tasks/{task_id}GET /v1/media/assets/{asset_id}/contentGET /v1/media/assetsGET /v1/media/assets/{asset_id}
Other content reads
set -eu
: "${AILOOT_API_KEY:?Set your Ailoot API key}"
curl --fail-with-body --silent --show-error https://api.ailoot.ai/v1/media/assets \
-H "Authorization: Bearer $AILOOT_API_KEY" -o media-assets.json
set -eu
: "${AILOOT_API_KEY:?Set your Ailoot API key}"
: "${AILOOT_MEDIA_TASK_ID:?Set the actual ID returned by the response or media-library metadata}"
export AILOOT_MEDIA_TASK_ID
resource_id=$(python3 -c 'import os,urllib.parse;print(urllib.parse.quote(os.environ["AILOOT_MEDIA_TASK_ID"],safe=""))')
curl --fail-with-body --silent --show-error "https://api.ailoot.ai/v1/media/tasks/$resource_id" \
-H "Authorization: Bearer $AILOOT_API_KEY" -o media-task.json
python3 - <<'PY_RESULT'
import json
from pathlib import Path
print(json.dumps(json.loads(Path("media-task.json").read_text())))
PY_RESULT
set -eu
: "${AILOOT_API_KEY:?Set your Ailoot API key}"
: "${AILOOT_ASSET_ID:?Set the actual ID returned by the response or media-library metadata}"
export AILOOT_ASSET_ID
resource_id=$(python3 -c 'import os,urllib.parse;print(urllib.parse.quote(os.environ["AILOOT_ASSET_ID"],safe=""))')
curl --fail-with-body --silent --show-error "https://api.ailoot.ai/v1/media/assets/$resource_id" \
-H "Authorization: Bearer $AILOOT_API_KEY" -o media-asset.json
python3 - <<'PY_RESULT'
import json
from pathlib import Path
print(json.dumps(json.loads(Path("media-asset.json").read_text())))
PY_RESULT
Keep all completed results
Keep every complete returned response, file and content part.
Keep the complete binary result and headers. If JSON/multiple outputs are returned, retain every data item and fetch each actual signed asset URL.
If the original response needs checking
Retain original operation_id/X-Client-Request-ID for reconciliation without resubmission; no dedicated audio poll route.
Response fields
| Field | Type |
|---|---|
Fieldbinary audio | Typebytes |
Fieldresponse headers | Typeheaders |
Errors and next steps
| Response | Condition | Next step |
|---|---|---|
Response400 · invalid_request_error | ConditionInvalid required fields, material representation or parameter value | Next stepCorrect the indicated fields before a new creation request. |
Responseserver_error | ConditionThe returned response says the operation or result requires a check | Next stepKeep the original returned operation/task ID, request headers and response; continue supported reads of that original operation. Do not resubmit the creation request. |
Aliases
Model aliases
Ailoot Ultra minimax/speech-2.8-hd
Method path aliases
Use the method paths shown above.
Related caller IDs
FAQ · MiniMax: Speech 2.8 HD
- What inputs and results are available?
POST /v1/audio/speech·minimax/speech-2.8-hd:text→audio- Which fields does the request use?
POST /v1/audio/speech·minimax/speech-2.8-hd:model,input,voice,response_format