---
name: API Release Notes
slug: api-release-notes
type: scrape
source_url: https://ai.google.dev/gemini-api/docs/changelog
organization: Google Gemini
organization_slug: google-gemini
total_releases: 121
latest_date: 2026-04-30
last_updated: 2026-05-01
tracking_since: 2023-12-13
canonical: https://releases.sh/google-gemini/api-release-notes
organization_url: https://releases.sh/google-gemini
---

<Release date="April 30, 2026" published="2026-04-30T00:00:00.000Z" url="https://ai.google.dev/gemini-api/docs/changelog#gemini-robotics-er-1-5-preview-shut-down">
## gemini-robotics-er-1.5-preview shut down

The `gemini-robotics-er-1.5-preview` model has been shut down. Use [gemini-robotics-er-1.6-preview](https://ai.google.dev/gemini-api/docs/models/gemini-robotics-er-1.6-preview) instead.
</Release>

<Release date="April 22, 2026" published="2026-04-22T00:00:00.000Z" url="https://ai.google.dev/gemini-api/docs/changelog#gemini-embedding-2-generally-available">
## gemini-embedding-2 Generally Available

Released `gemini-embedding-2` as generally available (GA). See the [Embeddings](https://ai.google.dev/gemini-api/docs/embeddings) page for more details.
</Release>

<Release date="April 21, 2026" published="2026-04-21T00:00:00.000Z" url="https://ai.google.dev/gemini-api/docs/changelog#deep-research-agent-new-versions">
## Deep Research Agent New Versions

Released new versions of the [Deep Research](https://ai.google.dev/gemini-api/docs/deep-research) agent with collaborative planning, visualization support, MCP server integration, and File Search:
- `deep-research-preview-04-2026`: Designed for speed and efficiency, ideal to be streamed back to a client UI.
- `deep-research-max-preview-04-2026`: Maximum comprehensiveness for automated context gathering and synthesis.
</Release>

<Release date="April 15, 2026" published="2026-04-15T00:00:00.000Z" url="https://ai.google.dev/gemini-api/docs/changelog#gemini-3-1-flash-tts-preview-launched">
## Gemini 3.1 Flash TTS Preview Launched

Launched [Gemini 3.1 Flash TTS Preview](https://ai.google.dev/gemini-api/docs/models/gemini-3.1-flash-tts-preview), a cost-efficient, expressive, and steerable text-to-speech model. See the [Text-to-Speech](https://ai.google.dev/gemini-api/docs/speech-generation) docs for more.
</Release>

<Release date="April 14, 2026" published="2026-04-14T00:00:00.000Z" url="https://ai.google.dev/gemini-api/docs/changelog#gemini-robotics-er-1-6-preview-released">
## gemini-robotics-er-1.6-preview Released

Released `gemini-robotics-er-1.6-preview`, an updated robotics model with new capabilities including instrument reading and improved spatial and physical reasoning. See the [Gemini Robotics-ER](https://ai.google.dev/gemini-api/docs/robotics-overview) page and the [blog](https://deepmind.google/blog/gemini-robotics-er-1-6).

Deprecation: `gemini-robotics-er-1.5-preview` will be shut down April 30, 2026.
</Release>

<Release date="April 2, 2026" published="2026-04-02T00:00:00.000Z" url="https://ai.google.dev/gemini-api/docs/changelog#gemma-4-models-released">
## Gemma 4 Models Released

Released `gemma-4-26b-a4b-it` and `gemma-4-31b-it`, available on [AI Studio](https://aistudio.google.com) and through the Gemini API, as part of the [Gemma 4](https://ai.google.dev/gemma/docs/core) launch.
</Release>

<Release date="April 1, 2026" published="2026-04-01T00:00:00.000Z" url="https://ai.google.dev/gemini-api/docs/changelog#flex-and-priority-inference-tiers-introduced">
## Flex and Priority Inference Tiers Introduced

Introduced the new [Flex](https://ai.google.dev/gemini-api/docs/flex-inference) and [Priority](https://ai.google.dev/gemini-api/docs/priority-inference) inference tiers, offering more options for optimizing cost or latency.
</Release>

<Release date="March 31, 2026" published="2026-03-31T00:00:00.000Z" url="https://ai.google.dev/gemini-api/docs/changelog#veo-3-1-lite-preview-and-gemini-2-5-flash-lite-preview-09-20">
## Veo 3.1 Lite Preview and gemini-2.5-flash-lite-preview-09-2025 Shutdown

- Launched Veo 3.1 Lite Preview, [veo-3.1-lite-generate-preview](https://ai.google.dev/gemini-api/docs/models/veo-3.1-lite-generate-preview), the most cost-efficient [video generation](https://ai.google.dev/gemini-api/docs/video) model for rapid iteration and high-volume applications.
- The `gemini-2.5-flash-lite-preview-09-2025` model has been shut down. Use [gemini-3.1-flash-lite-preview](https://ai.google.dev/gemini-api/docs/models/gemini-3.1-flash-lite-preview) instead.
</Release>

<Release date="March 26, 2026" published="2026-03-26T00:00:00.000Z" url="https://ai.google.dev/gemini-api/docs/changelog#gemini-3-1-flash-live-preview-released">
## gemini-3.1-flash-live-preview Released

Released [gemini-3.1-flash-live-preview](https://ai.google.dev/gemini-api/docs/models/gemini-3.1-flash-live-preview), the latest audio-to-audio (A2A) model designed for real-time dialogue and voice-first AI applications. See the [Live API](https://ai.google.dev/gemini-api/docs/live-api) docs to get started.
</Release>

<Release date="March 25, 2026" published="2026-03-25T00:00:00.000Z" url="https://ai.google.dev/gemini-api/docs/changelog#lyria-3-music-generation-models-launched">
## Lyria 3 Music Generation Models Launched

Launched [Lyria 3](https://ai.google.dev/gemini-api/docs/music-generation) music generation models:
- [lyria-3-clip-preview](https://ai.google.dev/gemini-api/docs/models/lyria-3-clip-preview): 30-second clips
- [lyria-3-pro-preview](https://ai.google.dev/gemini-api/docs/models/lyria-3-pro-preview): Full-length songs

Both models accept text and image inputs and generate high-quality 48kHz stereo audio. See the [Music generation](https://ai.google.dev/gemini-api/docs/music-generation) guide for details.
</Release>

<Release date="March 23, 2026" published="2026-03-23T00:00:00.000Z" url="https://ai.google.dev/gemini-api/docs/changelog#prepay-and-postpay-billing-plans">
## Prepay and Postpay Billing Plans

Rolled out Prepay and Postpay billing plans in AI Studio. Existing accounts may be affected; read the Billing documentation for more information.
</Release>

<Release date="March 23, 2026" published="2026-03-23T00:00:00.000Z" url="https://ai.google.dev/gemini-api/docs/changelog#prepay-and-postpay-billing-plans-in-ai-studio">
## Prepay and Postpay Billing Plans in AI Studio

Rolled out [Prepay and Postpay billing plans](https://ai.google.dev/gemini-api/docs/billing) in AI Studio. Existing accounts may be affected; read the [Billing](https://ai.google.dev/gemini-api/docs/billing) documentation for more information.
</Release>

<Release date="March 18, 2026" published="2026-03-18T00:00:00.000Z" url="https://ai.google.dev/gemini-api/docs/changelog#built-in-tools-and-function-calling-combination">
## Built-in Tools and Function Calling Combination

Released the new Built-in Tools and Function Calling Combination feature, making it possible to use Gemini's built-in tools alongside custom function calling tools in a single API call.

Grounding with Google Maps is now supported for Gemini 3 models going forward.
</Release>

<Release date="March 18, 2026" published="2026-03-18T00:00:00.000Z" url="https://ai.google.dev/gemini-api/docs/changelog#built-in-tools-and-function-calling-combination-google-maps-">
## Built-in Tools and Function Calling Combination; Google Maps Grounding for Gemini 3

- Released the new [Built-in Tools and Function Calling Combination](https://ai.google.dev/gemini-api/docs/tool-combination) feature, enabling use of Gemini's built-in tools alongside custom function calling tools in a single API call.
- [Grounding with Google Maps](https://ai.google.dev/gemini-api/docs/maps-grounding#supported_models) is now supported for Gemini 3 models.
</Release>

<Release date="March 16, 2026" published="2026-03-16T00:00:00.000Z" url="https://ai.google.dev/gemini-api/docs/changelog#usage-tiers-and-billing-account-spend-caps-updated">
## Usage Tiers and Billing Account Spend Caps Updated

Introduced revamped Usage Tiers and Billing Account spend caps for a better user billing experience.
</Release>

<Release date="March 16, 2026" published="2026-03-16T00:00:00.000Z" url="https://ai.google.dev/gemini-api/docs/changelog#revamped-usage-tiers-and-billing-account-spend-caps">
## Revamped Usage Tiers and Billing Account Spend Caps

Introduced revamped [Usage Tiers](https://ai.google.dev/gemini-api/docs/billing#about-billing) and [Billing Account spend caps](https://ai.google.dev/gemini-api/docs/billing#tier-spend-caps) for a better user billing experience.
</Release>

<Release date="March 12, 2026" published="2026-03-12T00:00:00.000Z" url="https://ai.google.dev/gemini-api/docs/changelog#project-level-spend-caps">
## Project-level Spend Caps

Introduced project-level spend caps to billing in AI Studio.
</Release>

<Release date="March 12, 2026" published="2026-03-12T00:00:00.000Z" url="https://ai.google.dev/gemini-api/docs/changelog#project-level-spend-caps-in-ai-studio">
## Project-Level Spend Caps in AI Studio

Introduced [project-level spend caps](https://ai.google.dev/gemini-api/docs/billing#project-spend-caps) to billing in AI Studio.
</Release>

<Release date="March 10, 2026" published="2026-03-10T00:00:00.000Z" url="https://ai.google.dev/gemini-api/docs/changelog#gemini-embedding-2-preview-released">
## gemini-embedding-2-preview Released

Released `gemini-embedding-2-preview`, the first multimodal embedding model. It supports text, image, video, audio, and PDF inputs, mapping all modalities into a unified embedding space.

**Deprecation:** The `gemini-2.5-flash-lite-preview-09-2025` model will be shut down on March 31, 2026.
</Release>

<Release date="March 10, 2026" published="2026-03-10T00:00:00.000Z" url="https://ai.google.dev/gemini-api/docs/changelog#gemini-embedding-2-preview-released-gemini-2-5-flash-lite-pr">
## gemini-embedding-2-preview Released; gemini-2.5-flash-lite-preview-09-2025 Deprecation

- Released `gemini-embedding-2-preview`, the first multimodal embedding model. Supports text, image, video, audio, and PDF inputs in a unified embedding space. See [Embeddings](https://ai.google.dev/gemini-api/docs/embeddings).
- Deprecation: `gemini-2.5-flash-lite-preview-09-2025` will be shut down March 31, 2026.
</Release>

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