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Providers

Alibaba Amazon Bedrock Anthropic Cohere DeepSeek Google MiniMax Mistral Moonshot AI OpenAI Vertex AI xAI Xiaomi MiMo Z.ai

Providers

Alibaba 26 Amazon Bedrock 8 Anthropic 31 Cohere 35 DeepSeek 5 Google 34 MiniMax 17 Mistral 53 Moonshot AI 18 OpenAI 106 Vertex AI 8 xAI 26 Xiaomi MiMo 4 Z.ai 22
Vertex AI gemini-3.5-flash

Gemini 3.5 Flash (Vertex AI) (Vertex AI)

Shutdown scheduled Shutdown

No — Gemini 3.5 Flash (Vertex AI) is not deprecated as of August 21, 2026. Vertex AI has not deprecated it, but publishes May 19, 2027 (in 250 days) as the earliest date it could be retired.

A current-generation Flash model on Vertex AI and the named successor to the 2.5 Pro line. Google guarantees at least 12 months of availability, so the published "May 19, 2027 or later" retirement date is a floor, not a commitment — the model is active with no firm shutdown date.

The facts

Provider Vertex AI
Model id gemini-3.5-flash
Released May 19, 2026
Deprecated not deprecated
Shutdown (earliest) May 19, 2027 ·

The provider publishes this as the earliest date the model could be retired, not a commitment. It may move later, but not earlier.
Status Shutdown scheduled
Last verified August 21, 2026

Frequently asked questions

When will Vertex AI Gemini 3.5 Flash (Vertex AI) shut down?
Vertex AI Gemini 3.5 Flash (Vertex AI) is scheduled to shut down on May 19, 2027, in 250 days. Vertex AI publishes this as the earliest possible retirement date rather than a firm commitment, so it may move later — but not earlier.
Is Vertex AI Gemini 3.5 Flash (Vertex AI) still available?
Yes. Vertex AI Gemini 3.5 Flash (Vertex AI) is active and fully supported as of August 21, 2026.

Models that migrate here

Vertex AI names Gemini 3.5 Flash (Vertex AI) as the replacement for one model.

Sources

Found something wrong? The data is one YAML file — edit it on GitHub.

This page, for machines

JSON Markdown Badge JSON

Drop the badge in a README so it turns red the day this model is retired:

[![gemini-3.5-flash](https://img.shields.io/endpoint?url=https://modeldeprecations.dev/badge/vertex/gemini-3.5-flash.json)](https://modeldeprecations.dev/vertex/gemini-3.5-flash)

Other Vertex AI models

All Vertex AI deprecations →

How to use this site

The full guide, in Markdown. Copy it and hand it to a coding agent verbatim.

# How to use modeldeprecations.dev

[modeldeprecations.dev](https://modeldeprecations.dev) answers one question per model: is it deprecated,
when does it shut down, and what replaces it. Every date on the site is cited to the
provider's own documentation, with the date we last checked it.

Three lifecycle states are used, matching the providers' own vocabulary:

- **active** — still supported, no deprecation announced.
- **deprecated** — the provider has announced it is going away. It still answers requests.
- **retired** — API access is gone. Requests fail.

A model can be active *and* carry a shutdown date: Anthropic publishes a
"not sooner than" date and Google publishes an earliest shutdown date for models
that are current and fully supported. Those are reported as scheduled shutdowns,
not deprecations, because that is what the provider actually committed to.

## Check one model

```bash
curl https://modeldeprecations.dev/api/v1/models/openai/gpt-4-32k.json
```

Or fetch the page as Markdown, which includes the answer, the dates and the sources:

```bash
curl https://modeldeprecations.dev/openai/gpt-4-32k.md
```

## Full catalog

```bash
curl https://modeldeprecations.dev/api/v1/models.json
```

Ids are `provider/model`. Dated snapshots (`gpt-4-32k-0613`) are listed as aliases of
their canonical entry rather than as separate records.

Each entry carries `computed_status`, the lifecycle state recomputed against the build
date — so a model whose shutdown has passed reads `retired` without anyone editing data.

## Badges

A shields.io endpoint per model, for READMEs that should go red when a model dies:

```
https://img.shields.io/endpoint?url=https://modeldeprecations.dev/badge/openai/gpt-4-32k.json
```

## Calendar and changelog

- Subscribe to every shutdown date: https://modeldeprecations.dev/calendar.ics
- Changelog RSS: https://modeldeprecations.dev/changelog.xml

## JSON Schema

```bash
curl https://modeldeprecations.dev/api/v1/schema.json
```

## Contribute

Data lives in YAML under `models/{provider}/{model}.yaml` in the
[GitHub repo](https://github.com/mnfst/modeldeprecations.dev). Every lifecycle date needs a source URL; CI rejects a
date without one. Open a PR.

## For agents

- Machine-readable overview: https://modeldeprecations.dev/llms.txt
- This guide plus every model inline: https://modeldeprecations.dev/llms-full.txt
- Any page also exists as Markdown: append `.md` to a model URL.
- In a browser, this site registers a **WebMCP** tool on `navigator.modelContext`:
  `check_model_deprecation`, `list_shutdowns`, `find_replacement`, and `get_usage_guide`.
- Parameters each model accepts are catalogued on the sibling site, https://modelparams.dev.