Last refreshed 2026-05-11. Next refresh: weekly.
Why use Gemini 3.1 Pro Preview on OpenRouter?
OpenRouter offers Gemini 3.1 Pro Preview with pay-as-you-go pricing at $2.00/1M input tokens. OpenRouter is a multi-provider LLM aggregator offering unified API access to 300+ models from all major labs and emerging providers, with automatic failover for reliability.
Compare Gemini 3.1 Pro Preview across 5 providers to find the best fit for your use caseSetup recipe
Docs fallbackUse the provider REST API or SDKCreate a provider API keymodel: google/gemini-3.1-pro-previewgoogle/gemini-3.1-pro-previewRequest example
google/gemini-3.1-pro-preview.Gotchas
- Use provider model ID "google/gemini-3.1-pro-preview", not the LLMReference slug "gemini-3.1-pro-preview".
Compare Gemini 3.1 Pro Preview Across Providers
| Provider | Input (per 1M) | Output (per 1M) |
|---|---|---|
| Google AI Studio | $2.00 | $12.00 |
| GCP Vertex AI | $2.00 | $12.00 |
| OpenRouter | $2.00 | $12.00 |
| Replicate API | $2.00 | $12.00 |
| Vercel AI Gateway | $2.00 | $12.00 |
Pricing
| Type | Price (per 1M) |
|---|---|
| Input tokens | $2.00 |
| Output tokens | $12.00 |
Capabilities
About Gemini 3.1 Pro Preview
Google: Gemini 3.1 Pro Preview available via OpenRouter. Pricing: $2/1M input, $12/1M output.
FAQ
What does Gemini 3.1 Pro Preview cost on OpenRouter?
On OpenRouter, Gemini 3.1 Pro Preview costs $2 per 1M input tokens and $12 per 1M output tokens.
What is the context window for Gemini 3.1 Pro Preview on OpenRouter?
Gemini 3.1 Pro Preview supports a 1.05m token context window on OpenRouter.
How does OpenRouter compare to other Gemini 3.1 Pro Preview providers?
Gemini 3.1 Pro Preview is available from 5 providers. The cheapest input pricing is $2.00/1M tokens from Google AI Studio.
What API model ID do I use for Gemini 3.1 Pro Preview on OpenRouter?
Use the model ID google/gemini-3.1-pro-preview when calling OpenRouter's API.
Who created Gemini 3.1 Pro Preview?
Gemini 3.1 Pro Preview was created by Google DeepMind as part of the Gemini 3.1 model family.
Is Gemini 3.1 Pro Preview open source?
Gemini 3.1 Pro Preview's open source status is unknown in the seed data.