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

# Gemini 3.5 Flash

> Google's Gemini 3.5 Flash language model. See supported inputs, parameters, pricing, response fields, and API examples.

Gemini 3.5 Flash is Google's May 2026 Flash reasoning model for agentic workflows, coding, and multimodal understanding. It accepts text, image, audio, and video input with a 1M-token context window and returns up to 64K output tokens. Reasoning effort is tunable with `reasoning_effort` set to `minimal`, `low`, `medium`, `high`, or `max`.

## Model

```
google/gemini-3.5-flash
```

|              |                  |
| ------------ | ---------------- |
| **Provider** | Google           |
| **Name**     | Gemini 3.5 Flash |

## Supported Endpoints

All three API formats are supported:

* [Chat Completions](/api-reference/v1-chat-completions) — `POST /v1/chat/completions`
* [Responses](/api-reference/v1-responses) — `POST /v1/responses`
* [Messages](/api-reference/v1-messages) — `POST /v1/messages`

## Example

```bash theme={null}
curl -X POST https://api.unifically.com/v1/chat/completions \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -d '{
    "model": "google/gemini-3.5-flash",
    "messages": [
      {"role": "user", "content": "Summarize this document in three bullet points."}
    ]
  }'
```

<Note>
  **Volume discounts** are available for almost all models. Reach out at [contact@unifically.com](mailto:contact@unifically.com) to discuss custom pricing.
</Note>