Source: https://ailoot.ai/models/en/gemini-3-5-transcribe/ Canonical: https://ailoot.ai/models/en/gemini-3-5-transcribe/ Language: en # Gemini 3.5 Transcribe [Markdown](https://ailoot.ai/models/en/gemini-3-5-transcribe/index.md) · [JSON](https://ailoot.ai/models/en/gemini-3-5-transcribe/facts.json) ## [Gemini 3.5 Transcribe](https://ailoot.ai/models/en/gemini-3-5-transcribe/) A Google model for speech recognition, language detection, speaker diarization and word-level timestamps. - [**Ailoot · Speech-to-text** `POST /v1/audio/transcriptions` `gemini-3.5-transcribe`](https://ailoot.ai/models/en/gemini-3-5-transcribe/#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 3.5 Transcribe converts an audio file into text. Alongside transcription, it supports language detection, identification of speakers, timestamps for individual words, a custom vocabulary and smart text preparation. #### Languages and duration **More than 85 languages** are supported, including Russian, as well as switching between languages within a recording. Language is detected automatically. An ordinary request processes audio of **up to one hour**. With speaker diarization or word-level timestamps enabled, the limit drops to **30 minutes**. Output includes the complete transcript and, for the relevant modes, individual word annotations. The model is intended for file processing; continuous real-time recognition belongs to the separate `gemini-3.5-transcribe-live` version. #### Transcription modes Verbatim transcription is used by default. Smart mode removes filler words, accounts for speakers' self-corrections and formats the text. This mode cannot be combined with speaker diarization or word-level timestamps. Speaker diarization supports **up to eight speakers**. Identifying who spoke a line has **experimental status** for three or more speakers. Timestamps help connect the text to the recording, but enabling them may reduce recognition accuracy. #### Terms and files The custom term vocabulary holds **up to 1000 entries**; Google notes that it is usually better to limit it to around one hundred. This vocabulary is incompatible with speaker diarization and word-level timestamps. Mode selection therefore needs to account for what matters more: specialized terms or detailed speaker and time annotations. Supported audio formats include WAV, MP3, AIFF, AAC, OGG, FLAC, MPEG, M4A, L16, Opus, A-law, mu-law and WebM. Duration limits and permitted mode combinations are published for file processing. The Transcribe family description also specifies **96K tokens** of context and **32K tokens** of text output; these family characteristics do not replace file limits in the selected method. Context caching, code execution, file search, function calling, image creation and Thinking are not supported. The model specializes in obtaining text and annotations from audio, not generating new speech. **Ailoot · Speech-to-text** `POST /v1/audio/transcriptions` `gemini-3.5-transcribe` [`gemini-3.5-transcribe`](https://ailoot.ai/models/en/#m=gemini-3.5-transcribe&route=Core&caller=gemini-3.5-transcribe&fmt=transcriptions) Google /`gemini-3.5-transcribe` ### Overview A Google model for speech recognition, language detection, speaker diarization and word-level timestamps. Accepted inputs Audio Results Text ### Available in Ailoot · inputs & methods **Ailoot · Speech-to-text** `POST /v1/audio/transcriptions` Input types `audio` Output types `text` Output format json | Field | Type | Requirement | Values & limits | Default | | --- | --- | --- | --- | --- | | Field`model` | Type`string` | RequirementRequired | Values & limits gemini-3.5-transcribe | Default— | | Field`file` | Type`file` | RequirementRequired | Values & limits Maximum bytes: 67,108,864 File formats: wav, mp3, m4a, ogg, webm, flac Content type: multipart/form-data Maximum duration, seconds: 600 | Default— | | Field`response_format` | Type`string` | RequirementOptional | Values & limits json | Default— | Input material combinations **speech\_to\_text** · Required: actual audio file Method parameters and lifecycle | Parameter | Contract | | --- | --- | | Parameter`material_types` | Contractaudio | | 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 $0.01 *per minute or part thereof* Ailoot reserves an estimated amount before a request. After the result, it settles the final charge from measured usage. Streaming settlement uses the final usage record. [How reservation and settlement work →](https://ailoot.ai/docs/en/billing/reserve/) ### Example requests #### Ailoot · Speech-to-text Transcription example ```bash set -eu : "${AILOOT_API_KEY:?Set your Ailoot API key}" : "${AILOOT_AUDIO_FILE:?Set your actual MP3 recording}" export AILOOT_AUDIO_FILE python3 - <<'PY_REQUEST' import os from pathlib import Path f=Path(os.environ["AILOOT_AUDIO_FILE"]) if not f.is_file() or f.suffix.lower()!=".mp3":raise SystemExit("Choose your actual MP3 recording") PY_REQUEST curl --fail-with-body --silent --show-error https://api.ailoot.ai/v1/audio/transcriptions \ -H "Authorization: Bearer $AILOOT_API_KEY" \ --form-string model=gemini-3.5-transcribe -F "file=@$AILOOT_AUDIO_FILE" \ -D response-headers.txt -o result.json python3 - <<'PY_RESULT' import json from pathlib import Path print(json.dumps(json.loads(Path("result.json").read_text()),ensure_ascii=False,indent=2)) PY_RESULT ``` ### Receive and save results #### Ailoot · Speech-to-text json - `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. Retain complete JSON, not only text; preserve every available segment/speaker/timestamp and actual task/asset identity. ##### 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`text` | Typestring | | Field`segments[]` | Typeobject | | Field`task_id` | Typestring | | Field`asset_url` | Typestring | | Field`usage` | Typeobject | 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-3.5-transcribe`](https://ailoot.ai/models/en/#m=gemini-3.5-transcribe&route=Core&caller=gemini-3.5-transcribe&fmt=transcriptions) #### Method path aliases Use the method paths shown above. #### Related caller IDs [`gemini-3.5-transcribe`](https://ailoot.ai/models/en/#m=gemini-3.5-transcribe&route=Core&caller=gemini-3.5-transcribe&fmt=transcriptions) FAQ · Gemini 3.5 Transcribe What inputs and results are available? `POST /v1/audio/transcriptions` · `gemini-3.5-transcribe`: `audio` → `text` Which fields does the request use? `POST /v1/audio/transcriptions` · `gemini-3.5-transcribe`: `model`, `file`, `response_format` Connect Ailoot to Claude Code, OpenCode, Hermes or your own app. ## The company and its project portfolio The company and its project portfolio: millions of customers; monthly sales in the billions. ## Buy tokens at a discount. Subscription discounts for regular use. 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