Source: https://ailoot.ai/models/en/gemini-3-8-flash-lite-tts/
Canonical: https://ailoot.ai/models/en/gemini-3-8-flash-lite-tts/
Language: en

# Gemini 3.8 Flash Lite Tts

[Markdown](https://ailoot.ai/models/en/gemini-3-8-flash-lite-tts/index.md) · [JSON](https://ailoot.ai/models/en/gemini-3-8-flash-lite-tts/facts.json)

## [Gemini 3.8 Flash Lite Tts](https://ailoot.ai/models/en/gemini-3-8-flash-lite-tts/)

A Google speech model for voicing text at scale, sequential lines and voice workflows in 101 languages.

- [**Ailoot · Text to speech** `POST /v1/audio/speech` `gemini-3.8-flash-lite-tts`](https://ailoot.ai/models/en/gemini-3-8-flash-lite-tts/#method-0)

About the model

This description covers the model’s capabilities. Available in Ailoot inputs, outputs and options are listed for the selected method below.

Gemini 3.8 Flash-Lite TTS is designed for large numbers of speech operations: reading text, voicing sequential lines and everyday voice workflows. According to Google, its profile is low latency and efficient processing at scale.

#### Selecting a voice

The model supports **101 languages**, including Russian. Options include **30 preset voices**, an expanded library, creation of a voice identity and reproduction of a voice from a sample. The voice, style and spoken line itself are specified separately, so text to be voiced does not need to be mixed with a description of the reading style.

Flash-Lite uses the same speech-control format as Gemini 3.8 Flash TTS. In dialogue, lines belong to specific speakers. The number of preset voices in one multi-voice request is limited to two; voices created from a description or sample are used in separate speech lines.

#### What is supplied as input

Input is **text of up to 8192 tokens**, and output is **audio limited to 16,384 tokens**. Delivery settings control the performance style, while short vocal events and pauses are specified with special audio tags inside the text. This is speech synthesis from a specified line, not generation of a text answer to a question.

#### Formats and processing

For an ordinary response, **WAV** is used by default. The default streaming format is **headerless PCM**. Original audio parameters are **24 kHz, one channel and 16 bits**. The manufacturer also provides PCM, mu-law and A-law. Context caching and batch processing are supported. Audio format capabilities need to be considered separately from the actual way the selected speech method delivers a file.

#### Model boundaries

This version does not declare Thinking, function calling, code execution, file search, search grounding, Google Maps, structured text responses, image creation or use of URL contents. Its purpose is to voice prepared material quickly.

A low-latency design target does not set a completion deadline for every request. Language coverage, voice-selection methods and delivery control describe the model's own capabilities and do not mean that all settings are automatically available in every speech method.

**Ailoot · Text to speech** `POST /v1/audio/speech` `gemini-3.8-flash-lite-tts`

[`gemini-3.8-flash-lite-tts`](https://ailoot.ai/models/en/#m=gemini-3.8-flash-lite-tts&route=Core&caller=gemini-3.8-flash-lite-tts&fmt=speech)

Google /`gemini-3.8-flash-lite-tts`

### Overview

A Google speech model for voicing text at scale, sequential lines and voice workflows in 101 languages.

Accepted inputs

Text

Results

Audio

### Available in Ailoot · inputs & methods

**Ailoot · Text to speech** `POST /v1/audio/speech`

Input types

`text`

Output types

`audio`

Context

8,192 tokens

Maximum output

16,384 tokens

Output format

native audio bytes or JSON asset links

| Field | Type | Requirement | Values & limits | Default |
| --- | --- | --- | --- | --- |
| Field`model` | Type`string` | RequirementRequired | Values & limits gemini-3.8-flash-lite-tts | Default— |
| Field`input` | Type`string` | RequirementRequired | Values & limits Minimum length: 1 | Default— |
| Field`voice` | Type`string` | RequirementOptional | Values & limits Achernar, Achird, Algenib, Algieba, Alnilam, Aoede, Arlo, Autonoe, Bodi, Brio, Callirrhoe, Charon, Cleo, Cruz, Daro, Despina, Elio, Enceladus, Enya, Enzo, Erinome, Fenrir, Finn, Fola, Gacrux, Gero, Hali, Iapetus, Jett, Jori, Kira, Knox, Koda, Kore, Laomedeia, Leda, Lora, Ludo, Lumi, Mako, Milo, Neno, Nika, Nyla, Olin, Orus, Puck, Pulcherrima, Rami, Rasalgethi, Riko, Rina, Sadachbia, Sadaltager, Sami, Schedar, Sola, Sulafat, Tari, Tavi, Tova, Umbriel, Varo, Veda, Vindemiatrix, Zali, Zeno, Zephyr, Zubenelgenubi, Zuri | DefaultKore |
| Field`response_format` | Type`string` | RequirementOptional | Values & limits , wav, json | Default |
| Field`stream_format` | Type`string` | RequirementOptional | Values & limits audio | Default— |

Input material combinations

**text\_to\_speech** · Required: input

Method parameters and lifecycle

| Parameter | Contract |
| --- | --- |
| Parameter`material_types` | Contracttext |
| Parameter`required` | Contractnull |
| Parameter`optional_controls` | Contractnull |

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}`

Method shapes and IDs are exact; supplier capability is separate from admission.

### Pricing

#### Ailoot method rates

Input

$0.0005 */ 1K*

Output

$0.006 */ 1K*

Cache read

$0.000125 */ 1K*

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 →](https://ailoot.ai/docs/en/billing/reserve/)

### Example requests

#### Ailoot · Text to speech

Speech example

```bash
set -eu
: "${AILOOT_API_KEY:?Set your Ailoot API key}"
: "${AILOOT_TEXT_FILE:?Set your actual UTF-8 narration script}"
export AILOOT_TEXT_FILE
python3 - <<'PY_REQUEST'
import json,os
from pathlib import Path
p=json.loads('{"model": "gemini-3.8-flash-lite-tts", "input": ""}')
f=Path(os.environ["AILOOT_TEXT_FILE"])
if not f.is_file():raise SystemExit("Choose your actual UTF-8 source material")
text=f.read_text(encoding="utf-8")
if not text.strip():raise SystemExit("Source material must contain text")
p["input"]=text
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.wav
```

### Receive and save results

#### Ailoot · Text to speech

native audio bytes or JSON asset links

- `GET /v1/media/tasks/{task_id}`
- `GET /v1/media/assets/{asset_id}/content`
- `GET /v1/media/assets`
- `GET /v1/media/assets/{asset_id}`

##### Keep all completed results

Keep every complete returned response, file and content part.

A single output defaults to native audio bytes with actualContent-Type; response\_format=json or multiple outputs returns all owned links. No requested MP3/Opus/AAC/FLAC/PCM conversion or SSE.

##### 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 |
| --- | --- |
| Field`binary native audio` | Typebytes |
| Field`model` | Typestring |
| Field`response_id` | Typestring |
| Field`actual_count` | Typeinteger |
| Field`data[]` | Typeowned audio asset link |

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. |
| Response`server_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** [`gemini-3.8-flash-lite-tts`](https://ailoot.ai/models/en/#m=gemini-3.8-flash-lite-tts&route=Core&caller=gemini-3.8-flash-lite-tts&fmt=speech)

#### Method path aliases

Use the method paths shown above.

#### Related caller IDs

[`gemini-3.8-flash-lite-tts`](https://ailoot.ai/models/en/#m=gemini-3.8-flash-lite-tts&route=Core&caller=gemini-3.8-flash-lite-tts&fmt=speech)

FAQ · Gemini 3.8 Flash Lite Tts

What inputs and results are available?

`POST /v1/audio/speech` · `gemini-3.8-flash-lite-tts`: `text` → `audio`

Which fields does the request use?

`POST /v1/audio/speech` · `gemini-3.8-flash-lite-tts`: `model`, `input`, `voice`, `response_format`, `stream_format`

What limits apply?

`POST /v1/audio/speech` · `gemini-3.8-flash-lite-tts`: `ctx`: `8192`; `max_out`: `16384`

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