> ## Documentation Index
> Fetch the complete documentation index at: https://docs.kymaapi.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Gemini 3 Flash (Audio)

> Gemini 3 Flash audio understanding on Kyma. Tone, music, SFX, language, speaker emotion — $0.000648/min.

## Overview

`gemini-3-flash-audio` is Google's Gemini 3 Flash Preview tuned for *audio understanding*, not transcription. It listens to a clip and answers free-form questions about how it sounds — speaker emotion, music style, ambient SFX, language, mood, pacing.

It's the part of audio that a transcript loses. Pair it with [`whisper-v3-turbo`](/models/whisper-v3-turbo) and you have full audio context for any clip.

## Specs

| Field             | Value                                             |
| ----------------- | ------------------------------------------------- |
| Model ID          | `gemini-3-flash-audio`                            |
| Creator           | Google                                            |
| Best for          | Audio scene Q\&A, mood/emotion, music recognition |
| Max file size     | 25 MB                                             |
| Max duration      | \~30 min inline payload                           |
| Input modalities  | Audio                                             |
| Output modalities | Text                                              |
| Pricing mode      | Per minute                                        |
| Min billable      | 1 minute (rounded up)                             |
| Release stage     | Preview                                           |

## Pricing

|                |               Cost              |
| -------------- | :-----------------------------: |
| Per minute     |            \$0.000648           |
| 1-hour file    |             \$0.039             |
| 30-second clip | \$0.000648 (rounds up to 1 min) |

## Use this when

* The question is about *how* something sounds, not what was said: mood, emotion, music style, ambient SFX.
* You need to know what language is being spoken (and want a reasoned answer, not just a code).
* You're triaging audio for a video pipeline and want a one-sentence scene description per clip.

## Pick something else when

* You only need the words: use [`whisper-v3-turbo`](/models/whisper-v3-turbo) — it's cheaper and faster.
* You need *real-time* audio (sub-100ms latency) — Gemini 3 Flash audio is fast but not real-time.

## Example

```bash theme={null}
curl -X POST https://kymaapi.com/v1/audio/understand \
  -H "Authorization: Bearer $KYMA_API_KEY" \
  -F "file=@scene.mp3" \
  -F "model=gemini-3-flash-audio" \
  -F "question=Describe the mood, dominant instruments, tempo, and any background sounds."
```

The endpoint is sync — the response includes the model's answer plus a billing block. See [endpoint reference](/api-reference/audio-understand) for all parameters.

## Tips

* **Be specific in the question.** "What's the mood?" works, but "Is the speaker frustrated, neutral, or pleased? One word, then a one-sentence justification" gets a more useful answer.
* **Pass `duration_sec`** when you have it (`ffprobe` gives you it in one line). Saves over-charging on high-bitrate inputs where size-based estimation runs long.
* **Audio scene first, transcript second.** A 1-sentence audio summary often gives an agent enough context to decide whether the transcript is even worth fetching.

## Aliases that resolve here

* `audio-understand` — the canonical alias for "ask a question about audio". Resolves to this SKU today.

If you want stable behavior across alias changes, pin `gemini-3-flash-audio` directly.

## See also

* [Audio](/models/audio) - full audio family overview
* [`POST /v1/audio/understand`](/api-reference/audio-understand) - endpoint reference
* [`whisper-v3-turbo`](/models/whisper-v3-turbo) - the transcription pair
* [`watch-cli`](https://github.com/sonpiaz/watch-cli) - open-source CLI that pairs this with transcribe