# Gemini 3.1 Pro Preview API prices

Gemini 3.1 Pro Preview (gemini-pro) — 1.0M context, 66k max output.
33 metered per-token offers from 33 provider(s), in USD per 1M tokens.
Prices as of 2026-10-04.

| Provider | Input $/1M | Output $/1M | Cache read $/1M | Context |
| --- | --- | --- | --- | --- |
| Kilo Gateway | $1 | $6 | $0.1 | 1.0M |
| 302.AI | $2 | $12 | — | 1.0M |
| Abacus | $2 | $12 | $0.2 | 1.0M |
| AIHubMix | $2 | $12 | $0.2 | 1.0M |
| Auriko | $2 | $12 | $0.2 | 1.0M |
| CrossModel | $2 | $12 | $0.2 | 1.0M |
| DaoXE | $2 | $12 | $0.2 | 1.0M |
| Eden AI | $2 | $12 | $0.2 | 1.0M |
| Eden AI | $2 | $12 | $0.2 | 1.0M |
| FastRouter | $2 | $12 | — | 1.0M |
| FrogBot | $2 | $12 | $0.2 | 1.0M |
| Google | $2 | $12 | $0.2 | 1.0M |
| Vertex | $2 | $12 | $0.2 | 1.0M |
| Impossibl | $2 | $12 | $0.2 | 1.0M |
| DevPass (LLM Gateway) | $2 | $12 | $0.2 | 1.0M |
| LLM Gateway | $2 | $12 | $0.2 | 1.0M |
| LLM Gateway | $2 | $12 | $0.2 | 1.0M |
| Merge Gateway | $2 | $12 | $0.2 | 1.0M |
| NanoGPT | $2 | $12 | $0.2 | 1.0M |
| Ofox | $2 | $12 | $0.2 | 1.0M |
| OpenCode Zen | $2 | $12 | $0.2 | 1.0M |
| OpenRouter | $2 | $12 | $0.2 | 1.0M |
| Opper | $2 | $12 | $0.2 | 1.0M |
| OrcaRouter | $2 | $12 | $0.2 | 1.0M |
| Perplexity Agent | $2 | $12 | $0.2 | 1.0M |
| Pioneer | $2 | $12 | $0.2 | 1.0M |
| Poe | $2 | $12 | $0.2 | 1.0M |
| Requesty | $2 | $12 | $0.2 | 1.0M |
| Tempr Gateway | $2 | $12 | $0.2 | 1.0M |
| Vercel AI Gateway | $2 | $12 | $0.2 | 1.0M |
| Vivgrid | $2 | $12 | $0.2 | 1.0M |
| ZenMux | $2 | $12 | $0.2 | 1.0M |
| Venice AI | $2.5 | $15 | $0.5 | 1.0M |

## Summary

- Cheapest input: $1 per 1M tokens (Kilo Gateway)
- Cheapest output: $6 per 1M tokens (Kilo Gateway)
- First-party: $12 per 1M output tokens (Google)
- Free offers: Kenari
- Subscription plans (not per-token): none
- Released: 2026-02-19
- Inputs: audio, image, pdf, text, video

## FAQ

### What is the cheapest Gemini 3.1 Pro Preview API?

As of Oct 4, 2026, Kilo Gateway has the lowest Gemini 3.1 Pro Preview output price at $6 per 1M tokens, and Kilo Gateway has the lowest input price at $1 per 1M tokens. Prices are metered per-token rates in USD; free tiers and subscription plans are excluded.

### How much does Gemini 3.1 Pro Preview cost on Google?

Google charges $2 per 1M input tokens and $12 per 1M output tokens for Gemini 3.1 Pro Preview.

### How many providers offer Gemini 3.1 Pro Preview?

33 providers list Gemini 3.1 Pro Preview on Sovyron; 33 of them sell it at a metered per-token price.

### Is Gemini 3.1 Pro Preview free?

1 provider(s) list a free-tier offer: Kenari. Free tiers usually have rate limits.

### What is the context window of Gemini 3.1 Pro Preview?

Gemini 3.1 Pro Preview supports a 1.0M-token context window and up to 66k output tokens.

HTML page: https://sovyron.com/models/gemini-3-1-pro-preview/
Full dataset: https://sovyron.com/data/catalog.json