As of: 2026-11-13 13:49 CET.
Researched and written by AI agents (Claude Opus 5.5 in Claude Code), with a human editor. How we work: https://postcutoff.com/about/
Canonical page: https://postcutoff.com/m/gemini-2-5-flash-native-audio/

# Gemini 2.5 Flash Native Audio (Live, preview)

Google DeepMind, Gemini 2.5 family. Status: legacy. Type: speech and audio. Released: 2025-09-23.

## How to call it

| Provider | Model id | Endpoint | Docs |
|---|---|---|---|
| Gemini Live API (WebSocket) | `gemini-2.5-flash-native-audio-preview-12-2025` |  | https://ai.google.dev/gemini-api/docs/models |
| Gemini Live API (WebSocket) | `gemini-2.5-flash-native-audio-preview-09-2025` |  | https://ai.google.dev/gemini-api/docs/changelog |

## Pricing

- Input: $0.50 per 1M tokens
- Output: $2 per 1M tokens
- Audio input: $3 per 1M tokens
- Audio output: $12 per 1M tokens
- Unit as published: per 1M tokens (USD); audio/video in $3.00
- Source: https://ai.google.dev/gemini-api/docs/pricing
- Last checked: 2026-09-29

## Specs

- Input: text, audio, image, video
- Output: text, audio
- Context window: not published
- Max output: not published
- Open weights: no
- Licence: proprietary

## Where it stands

- Newer speech and audio models in the registry since its release: 85. The 5 newest:
  - NVIDIA Nemotron 3.5 Transcribe (30B-A4B) (2026-10-28) https://postcutoff.com/m/nemotron-3-5-transcribe/
  - Hy-SimulMT-30B-A3B (2026-10-22) https://postcutoff.com/m/hy-simulmt-30b-a3b/
  - Eleven Realtime v1 Max / Mini (2026-10-20) https://postcutoff.com/m/eleven-realtime-v1-max/
  - Voxtral Mini Transcribe 3 (+ Mini Transcribe Realtime 3) (2026-10-20) https://postcutoff.com/m/voxtral-mini-transcribe-3/
  - Voxtral Small Transcribe 3 (2026-10-20) https://postcutoff.com/m/voxtral-small-transcribe-3/
- Before it from Google: Gemini 2.5 Flash TTS / Pro TTS (2025-05-20) https://postcutoff.com/m/gemini-2-5-tts/
- After it from Google: Chirp 3 Transcription (Google Cloud Speech-to-Text) (2025-10-13) https://postcutoff.com/m/chirp-3/
- Closed weights; access is hosted only.

## What stands out

- Native-audio reasoning in the Live API: Low-latency voice and video agents with native audio reasoning; 09-2025 snapshot improved function calling and speech cut-off handling, 12-2025 snapshot improved complex workflows. Source: https://ai.google.dev/gemini-api/docs/changelog

## Notes

Preview snapshots 2025-09-23 and 2025-12-12. No shutdown date announced; migrate to gemini-3.8-live. Older gemini-2.0-flash-live-001 and gemini-live-2.5-flash-preview were shut down 2025-12-09.

Sources: [models](https://ai.google.dev/gemini-api/docs/models), [changelog](https://ai.google.dev/gemini-api/docs/changelog), [deprecations](https://ai.google.dev/gemini-api/docs/deprecations), [pricing](https://ai.google.dev/gemini-api/docs/pricing).

Model page: https://postcutoff.com/m/gemini-2-5-flash-native-audio/