Google: Gemini 3.1 Pro Preview: AI model
Gemini 3.1 Pro Preview is a Google multimodal model for reasoning, coding and everyday chat, with a 1.0M-token context window. Available via Hormouz with stable access from inside Iran.
- Context window:
- 1,048,576 tokens
- Input:
- $2/1M tokens
- Output:
- $12/1M tokens
- Type:
- text, audio, image, video
- Vision
- Tools
- Streaming
- Long context
Thinking levels: Always thinks · high · medium · low
Gemini 3.1 Pro Preview is a Google Gemini-family model built for reasoning, coding, mathematics and general chat. It supports configurable "thinking" (reasoning effort levels) so you can trade cost and latency for accuracy on hard tasks. It accepts audio, PDFs and files, images, text and video and returns text, with a context window of up to 1.0M tokens.
Its multimodal input makes it suitable for document understanding, chart and image analysis, and workflows that mix text with images and video. With thinking enabled it is stronger on multi-step reasoning; with thinking minimal it responds quickly and cheaply.
Pricing is usage-based at $2/M in · $12/M out. Gemini 3.1 Pro Preview is served through Hormouz behind an OpenAI-compatible API, with stable access from inside Iran.
Gemini 3.1 Pro Preview is Google’s frontier reasoning model, delivering enhanced software engineering performance, improved agentic reliability, and more efficient token usage across complex workflows. Building on the multimodal foundation...
Quickstart
curl https://api.hormouz.net/v1/chat/completions \
-H "Authorization: Bearer ng-YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "google/gemini-3.1-pro-preview",
"messages": [{"role": "user", "content": "Hello!"}]
}'Specs
| Vendor | |
|---|---|
| Type | Text, Audio, Image, Video |
| Context window | 1,048,576 tokens |
| Pricing | $2.00/M in · $12.00/M out |
| API | Chat Completions |
| Capabilities | Streaming · Vision · Tools |
Benchmarks
Reasoning
Coding
Agentic
Source: Artificial Analysis
Design Arena
How Design Arena works ↗Ranking distribution
37626 tournaments ?
Metrics sourced from Design Arena
Code example
curl https://api.hormouz.net/v1/chat/completions \
-H "Authorization: Bearer ng-YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "google/gemini-3.1-pro-preview",
"messages": [{"role": "user", "content": "Hello!"}]
}'from openai import OpenAI
client = OpenAI(api_key="ng-YOUR_API_KEY", base_url="https://api.hormouz.net/v1")
response = client.chat.completions.create(
model="google/gemini-3.1-pro-preview",
messages=[{"role": "user", "content": "Hello!"}],
)
print(response.choices[0].message.content)import OpenAI from "openai";
const client = new OpenAI({ apiKey: "ng-YOUR_API_KEY", baseURL: "https://api.hormouz.net/v1" });
const response = await client.chat.completions.create({
model: "google/gemini-3.1-pro-preview",
messages: [{ role: "user", content: "Hello!" }],
});
console.log(response.choices[0].message.content);Buy the Google: Gemini 3.1 Pro Preview API, paid in rial
- Buy credit with an Iranian bank card; no foreign card or account needed.
- One Hormouz key reaches Google: Gemini 3.1 Pro Preview and 600+ other models, and you pay only for what you use.
- No VPN and no risk of a banned account; just change the base URL to api.hormouz.net/v1.
Use via Hormouz
Connect to this model and 600+ others with one API key, then see usage down to each request.
Request company accessFAQ
- What inputs does Gemini 3.1 Pro Preview accept?
- It accepts audio, PDFs and files, images, text and video and returns text. Reasoning effort ("thinking") is configurable.
- What is the context window of Gemini 3.1 Pro Preview?
- Up to 1.0M tokens, suitable for very long documents and large codebases.
- How much does Gemini 3.1 Pro Preview cost?
- Usage-based pricing: $2/M in · $12/M out.
- How does Gemini 3.1 Pro Preview perform on benchmarks?
- Independent scores from Artificial Analysis are shown in the Benchmarks section above, grouped by reasoning, coding and agentic tasks.
- How do I access Gemini 3.1 Pro Preview from inside Iran?
- Create an account on Hormouz and generate an API key. Hormouz provides stable access from inside Iran via an OpenAI-compatible API.
Updated 2026-10-13