---
title: "Gemini API — All variants, pricing, code samples | RunAPI"
url: "https://runapi.ai/models/gemini.md"
canonical: "https://runapi.ai/models/gemini.md"
locale: "en"
model: "Gemini"
provider: "Google"
modality: "text"
variant_count: 5
price_from_cents: 3
---

# Gemini

Google's multimodal LLM for chat, code generation, reasoning, and long-context tasks.

**Provider:** Google
**Modality:** Text
**Catalog:** 5 variants

Gemini is Google's multimodal large language model family supporting text, image, audio, and code understanding. Available in Flash and Pro variants, it handles tasks from quick summarization to deep reasoning and complex coding.

## Variants

| Version | Variant | Pricing | Billing | URL |
|---|---|---|---|---|
| gemini-2.5-flash | `2.5-flash` | $0.030 | 1K tokens | https://runapi.ai/models/gemini/2.5-flash.md |
| gemini-2.5-pro | `2.5-pro` | $0.080 | 1K tokens | https://runapi.ai/models/gemini/2.5-pro.md |
| gemini-3-flash-preview | `3-flash-preview` | $0.030 | 1K tokens | https://runapi.ai/models/gemini/3-flash-preview.md |
| gemini-3-pro-preview | `3-pro-preview` | $0.100 | 1K tokens | https://runapi.ai/models/gemini/3-pro-preview.md |
| gemini-3.1-pro-preview | `3.1-pro-preview` | $0.100 | 1K tokens | https://runapi.ai/models/gemini/3.1-pro-preview.md |


## Install

```sh
npm install @runapi.ai/gemini
# or
gem install runapi-gemini
```

## Quickstart

```sh
curl -X POST https://runapi.ai/v1/chat/completions \
  -H "Authorization: Bearer $RUNAPI_KEY" \
  -H "Content-Type: application/json" \
  -d '{ "model": "gemini-2.5-flash", "prompt": "..." }'
```

## Context

Gemini is Google's flagship multimodal LLM, available in Flash (fast) and Pro (frontier reasoning) variants. Through RunAPI, all Gemini models share the same API shape and billing.

## FAQ

### Which variant should I start with?

Pick the cheapest variant that meets your quality bar. Most teams start on the fast variant and graduate to pro for production.

### Is there a free tier?

New accounts get free first calls on every model. After that, pay per call.

### Do you stream results?

Where streaming is available, RunAPI streams end-to-end.

### How are failures billed?

Failed generations are not charged.

### Are outputs cached?

Generated outputs are stored and retrievable by task ID. Inputs are not cached.

### Can I use commercially?

Yes — commercial use is included for every variant unless a model license explicitly restricts it, which is called out on the variant page.

### What about rate limits?

Per-key rate limits scale with usage tier. See pricing page for current limits.

### Where can I report issues?

Open an issue on the public GitHub repo or email support.