Gemini 3.5 Transcribe API
Google's speech-to-text model. Call it on 666 AI with the same API key as every other model. Pay as you go; prices follow the upstream in real time and this page updates hourly.
| Vendor | |
| Type | speech-to-text |
| Price | $0.0027 per audio minute |
| Context window | 1M tokens |
| Live test | Passed our live test in the last 7 days |
| Model ID (use this in your request) | google/gemini-3.5-transcribe |
How to call Gemini 3.5 Transcribe
The API is OpenAI-compatible. Replace YOUR-ENDPOINT with the endpoint shown on your API Key page after you sign up, and YOUR-KEY with your key.
curl https://YOUR-ENDPOINT/v1/audio/transcriptions \
-H "Authorization: Bearer YOUR-KEY" \
-F model=google/gemini-3.5-transcribe \
-F file=@audio.mp3from openai import OpenAI
client = OpenAI(base_url="https://YOUR-ENDPOINT/v1", api_key="YOUR-KEY")
r = client.audio.transcriptions.create(model="google/gemini-3.5-transcribe", file=open("audio.mp3", "rb"))
print(r.text)Similar models — price comparison
| Model | Price |
|---|---|
| Whisper Large V3 | $0.002025 per audio minute |
| Voxtral Small 24b 2507 Stt | $0.00405 per audio minute |
| Voxtral Mini Transcribe | $0.004455 per audio minute |
| Voxtral Mini Transcribe 3.0 | $0.005197 per audio minute |
| Nova 3 Medical | $0.005832 per audio minute |
| Voxtral Small Transcribe 3.0 | $0.00594 per audio minute |
More models from Google
| Model | Price |
|---|---|
| Gemini 3 Flash Preview | $0.6075 per 1M input tokens · $3.65 per 1M output tokens |
| Gemini 3 Pro Image Preview | $2.43 per 1M input tokens · $146 per 1M output tokens |
| Gemini 3.1 Flash Image Preview | $0.6075 per 1M input tokens · $72.9 per 1M output tokens |
| Gemini 3.1 Pro Preview | $2.43 per 1M input tokens · $14.58 per 1M output tokens |
| Gemini 3.5 Flash | $1.82 per 1M input tokens · $10.94 per 1M output tokens |
| Gemini 3.6 Flash | $0.9113 per 1M input tokens · $4.56 per 1M output tokens |
| Gemini 3.7 Flash | $0.9113 per 1M input tokens · $4.56 per 1M output tokens |
| Gemini 3.8 Flash | $0.9113 per 1M input tokens · $4.56 per 1M output tokens |
FAQ
How much does the Gemini 3.5 Transcribe API cost?
On 666 AI, Gemini 3.5 Transcribe costs $0.0027 per audio minute. You pay only for what you use — no monthly fee. Prices follow the upstream in real time; this page updates every hour.
Can I use the official OpenAI SDK?
Yes. The API is OpenAI-compatible: in the OpenAI Python or Node.js SDK just change base_url and api_key, and set model to google/gemini-3.5-transcribe.
How do I pay?
Bank card (including Google Pay / Apple Pay), USDT / ETH, or bank wire. Top up once and usage is deducted as you go.