Gemini 3.6 Flash

Gemini 3.6 Flash is Google’s production Flash model for code generation, agentic execution, and spatial and multimodal reasoning. AnyFast exposes it through the native Gemini generateContent API.

Key capabilities

1M token context - Up to 1,048,576 input tokens and 65,536 output tokens
Multimodal input - Text, image, video, audio, and PDF input; text output
Agentic execution - Fewer reasoning steps, turns, and tool calls for multi-step workflows
Coding - Improved production code generation, instruction following, and diagnostic behavior
Spatial reasoning - Improved chart interpretation, visual blueprint conversion, and complex layout reasoning
Tools - Function calling, code execution, File Search, Google Search, Google Maps, URL context, structured output, and Computer Use (Preview)
Thinking - medium by default; use high for deeper reasoning

Quick example

curl "https://www.anyfast.ai/v1beta/models/gemini-3.6-flash:generateContent?key=YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "contents": [
      {
        "role": "user",
        "parts": [{ "text": "Design a reliable retry strategy for a distributed job worker." }]
      }
    ],
    "generationConfig": {
      "thinkingConfig": {
        "thinkingLevel": "medium"
      },
      "maxOutputTokens": 2048
    }
  }'

import requests

response = requests.post(
    "https://www.anyfast.ai/v1beta/models/gemini-3.6-flash:generateContent",
    params={"key": "YOUR_API_KEY"},
    json={
        "contents": [{
            "role": "user",
            "parts": [{"text": "Design a reliable retry strategy for a distributed job worker."}],
        }],
        "generationConfig": {
            "thinkingConfig": {"thinkingLevel": "medium"},
            "maxOutputTokens": 2048,
        },
    },
)
response.raise_for_status()
print(response.json()["candidates"][0]["content"]["parts"][0]["text"])

API changes

Do not send temperature, topP, or topK. Google has deprecated these sampling parameters for Gemini 3.6 Flash and Gemini 3.5 Flash-Lite. Also remove candidateCount and legacy thinkingBudget configurations.

Requests must not end with a non-empty model role turn. End the conversation with a non-empty user turn; otherwise the API returns HTTP 400.

Parameters

Parameter	Type	Required	Description
`key`	string	Yes	API key in the query string
`contents`	array	Yes	Conversation turns containing text or multimodal parts
`systemInstruction`	object	No	System instruction with a `parts` array
`generationConfig.thinkingConfig.thinkingLevel`	string	No	`medium` (default) or `high`
`generationConfig.maxOutputTokens`	integer	No	Maximum output tokens, up to 65,536
`generationConfig.responseMimeType`	string	No	Output MIME type, such as `application/json`
`generationConfig.responseSchema`	object	No	JSON schema used with structured output

API Reference

View the interactive API reference for Gemini 3.6 Flash.

Getting started

Model Introduction

Resources

Gemini 3.6 Flash

Key capabilities

Quick example

API changes

Parameters

API Reference

Official references

​Key capabilities

​Quick example

​API changes

​Parameters

API Reference

​Official references

Key capabilities

Quick example

API changes

Parameters

Official references