Google Gemini Models

Gemini's Flash tiers are built for speed and very long context (1,048,576 tokens across the 3.x family). Through AI Gateway you can call every Gemini variant below with a single OpenAI-compatible request.

Available Models

Live per-model credit pricing is on the Models page.

Quick Start

Python (OpenAI SDK)

from openai import OpenAI

client = OpenAI(
    api_key="YOUR_API_KEY",
    base_url="https://your-domain.com/api/ai/v1"
)

response = client.chat.completions.create(
    model="gemini-3.8-flash",
    messages=[{"role": "user", "content": "Summarize this 200-page PDF."}]
)
print(response.choices[0].message.content)

JavaScript / TypeScript

const res = await fetch("https://your-domain.com/api/ai/v1/chat/completions", {
  method: "POST",
  headers: {
    "Authorization": "Bearer YOUR_API_KEY",
    "Content-Type": "application/json",
  },
  body: JSON.stringify({
    model: "gemini-3.6-flash",
    messages: [{ role: "user", content: "Draft a product update." }],
  }),
});

Replace your-domain.com with your AI Gateway site domain. Get your API key from the dashboard after sign-up.

Why through AI Gateway

• Gemini + every other provider behind one key — no separate Google Cloud setup
• 1M-token context for whole-codebase and long-document work
• Flash-tier speed with credit-based per-token billing

Related Pages

• Live model pricing
• API reference

Why through AI Gateway

• One unified interface: call every provider through a single OpenAI-compatible base URL
• One key: no per-vendor accounts; credits are shared and never expire
• Per-token billing: cache hits billed at steep discounts
• Flexible switching: change one string to move between models or vendors

About this data

Specs and prices come from the platform live catalog; performance figures from vendor or third-party publications. Updated 2026-10-13.

Why through AI Gateway

• One unified interface: call every provider through a single OpenAI-compatible base URL
• One key: no per-vendor accounts; credits are shared and never expire
• Per-token billing: cache hits billed at steep discounts
• Flexible switching: change one string to move between models or vendors

Capabilities

19 shipping models, context windows from 1.05M to 1.05M tokens; tiers: light ×14, deep reasoning ×3, previous generation ×2.

Pricing & billing

Per-token credit billing; cache hits at steep discounts. Live rates on the Models pricing page — numbers intentionally not fixed here.

FAQ

How large is the context window of Google Gemini?

1,048,576 Token (1.05M)

How is it billed?

Per-token credit billing with cache-hit discounts. Live rates on the Models page.

Do I need a provider account?

No. One AI Gateway API key covers this model and every other model on the site.

About this data

Specs and prices come from the platform live catalog; performance figures from vendor or third-party publications. Updated 2026-10-13.