GoogleGoogleText / Chat

Gemini 3.6 Flash API: Google AI's chat / LLM model, one key away

Gemini 3.6 Flash via the ApexApi gateway

Gemini 3.6 Flash is designed to deliver strong coding and general-agentic capabilities (near-Pro level) at substantial speed and value with improved token-efficiency and quality over previous Flash models. Gemini 3.6 Flash is optimized for multi-step orchestration, full-stack code refactoring, and general reasoning with much better token efficiency than Gemini 3.5 Flash. Call it through ApexApi's unified, OpenAI-compatible API with one `ak-` key, alongside every other model in the catalog. It supports a 1,048,576-token context window, tool / function calling, image (vision) input, and streaming responses. Pricing is $1.73 input and $8.63 output per 1M tokens, billed pay-per-use from your credit balance with no subscription.

Gemini 3.6 Flash is served through ApexApi's unified, OpenAI-compatible API. One key, one format, with smart routing and automatic failover. Provider: Google AI.

Why Gemini 3.6 Flash

1,048,576-token context

Reason over long documents, codebases, and multi-turn history in a single request.

Tool & function calling

Structured outputs and tool orchestration for agentic and automation workloads.

Vision input

Send images alongside text for document, UI, and visual-understanding tasks.

Specifications

Modality
chat
Context window
1048.6K tokens
Max output
65.5K tokens
Streaming
Yes
Tool / function calling
Yes
Vision input
Yes

Gemini 3.6 Flash pricing

  • A million tokens in and a million out costs $10.35 here, all-in.
  • It runs 1.7× cheaper than Gemini 3.1 Pro Preview, the pricier option from the same maker.
  • It is one of 33 chat models here with a 1M-token context window.

Getting started with Gemini 3.6 Flash

OpenAI-compatible. Point your client at ApexApi, swap your key, and call it. No new SDK to learn.

POST /v1/chat/completions
from openai import OpenAI

client = OpenAI(
    base_url="https://api.apexapi.dev/v1",
    api_key="<YOUR_APEXAPI_KEY>",
)

response = client.chat.completions.create(
    model="google/gemini-3.6-flash",
    messages=[{"role": "user", "content": "Hello!"}],
)
print(response.choices[0].message.content)

Gemini 3.6 Flash use cases

What teams build with Gemini 3.6 Flash on ApexApi.

Agents & automation

Tool-using agents that orchestrate multi-step workflows and call APIs.

Coding assistants

Code generation, refactoring, reviews, and multi-file reasoning.

RAG & knowledge apps

Summarization and long-document Q&A grounded in your own data.

Gemini 3.6 Flash vs other models

How it compares, and on ApexApi you can switch between any of them with a single string change, same key, same endpoint.

Gemini 3.6 Flash vs Claude Opus 4.7

Compare Gemini 3.6 Flash against this model on price, capabilities, and latency. A/B them with a single key on ApexApi.

Learn more about Claude Opus 4.7 API →

Gemini 3.6 Flash vs GPT-5.5

Compare Gemini 3.6 Flash against this model on price, capabilities, and latency. A/B them with a single key on ApexApi.

Learn more about GPT-5.5 API →

Gemini 3.6 Flash vs Gemini 3.1 Pro Preview

Compare Gemini 3.6 Flash against this model on price, capabilities, and latency. A/B them with a single key on ApexApi.

Learn more about Gemini 3.1 Pro Preview API →

Gemini 3.6 Flash API: FAQ

How do I call Gemini 3.6 Flash through ApexApi?

Create an ApexApi key, point your client at https://api.apexapi.dev/v1, and POST to /v1/chat/completions with the model set to `google/gemini-3.6-flash`. The API is OpenAI-compatible, so an existing OpenAI SDK works once you change the base URL and key.

How much does Gemini 3.6 Flash cost on ApexApi?

$1.73 per million input tokens and $8.63 per million output tokens, all-in with no separate platform fee. You buy credits and pay per call, with no subscription or minimum.

What is the context window for Gemini 3.6 Flash?

1,048,576 tokens. It can return up to 65,536 tokens in a single response.

Does Gemini 3.6 Flash support tool calling and image input?

Gemini 3.6 Flash supports tool / function calling, image (vision) input, and streaming responses.

What should I use instead of Gemini 3.6 Flash?

From the same maker, Gemini 3 Flash Preview costs less for lighter work and Gemini 3.1 Pro Preview is the step up when this one falls short. Switching is one string: both run on the same endpoint and the same key, so there is nothing to re-integrate.

Ready to build with Gemini 3.6 Flash?

One API key. Every major AI model. Pay only for what you use.

Get your API key, free to start