Model reference · Synced 2025-04-29
Google: Gemini 3.1 Pro Preview Custom Tools
Google: Gemini 3.1 Pro Preview Custom Tools is an AI model from Kilo Gateway. 1M context window. Capabilities: reasoning, tool calling, multimodal vision, audio. Available on 1 provider. Cheapest listing: $2 input / $12 output per 1M tokens.
Quick facts
- Cheapest input: $2 per 1M tokens (Kilo Gateway)
- Cheapest output: $12 per 1M tokens
- Context window: 1M tokens
- Max output: 66K tokens
- Release date: 2026-02-26
- Capabilities: reasoning, tool calling, multimodal vision, audio
- Provider count: 1
→ Add Google: Gemini 3.1 Pro Preview Custom Tools to the comparison tool
Provider pricing
Same model, different providers, different prices. Cheapest first.
| Provider | Input / 1M | Output / 1M | Context | Listed |
|---|---|---|---|---|
| Kilo Gateway | $2 | $12 | 1M | 2026-02-26 |
Prices synced daily from models.dev + provider docs.
How to use this model
If you're picking Google: Gemini 3.1 Pro Preview Custom Tools for a project, the three things that matter most:
- Compare it side-by-side with one or two alternatives in the live comparison tool. Pricing differences matter more than benchmarks at scale.
- Pick the cheapest provider that meets your latency / SLA need. Big spread across providers for the same weights.
- Re-evaluate every 3 months. Frontier prices drop fast; a model that's cheapest today may not be in a quarter.
Related models
FAQ
How much does Google: Gemini 3.1 Pro Preview Custom Tools cost? $2 input / $12 output per 1M tokens at the cheapest listing. See the table above for other providers.
What is the context window? 1M tokens.
Which providers offer it? Kilo Gateway.
Where do these numbers come from? models.dev + provider documentation, synced daily. About the data.