Google: Gemini 3.1 Pro Preview Custom Tools.
Gemini 3.1 Pro Preview Custom Tools is a variant of Gemini 3.1 Pro that improves tool selection behavior by preventing overuse of a general bash tool when more efficient third-party...
No self-host path — closed weights.
Google: Gemini 3.1 Pro Preview Custom Tools's weights aren't published. Use it via the access providers below.
Cheapest hosted endpoints.
| Provider | Access | $/M in | $/M out | |
|---|---|---|---|---|
| OpenRouter | api aggregator | $2.0 | $12.0 | Launch ↗ |
Speed across providers.
Tokens/sec and time-to-first-token measured against the same prompt template on each provider's API.
| Provider | Tokens/sec | TTFT | Total |
|---|---|---|---|
| OpenRouter | 96.9 | 5101 ms | 5118 ms |
Frequently asked.
How do I run Google: Gemini 3.1 Pro Preview Custom Tools?
Where can I access Google: Gemini 3.1 Pro Preview Custom Tools?
How much does it cost to run Google: Gemini 3.1 Pro Preview Custom Tools?
Is Google: Gemini 3.1 Pro Preview Custom Tools open-source or proprietary?
What it costs per month across providers.
Estimate your monthly bill for Google: Gemini 3.1 Pro Preview Custom Tools across every host that publishes per-token pricing. Slide your token volumes; the chart + table re-rank cheapest-first.
Cheapest provider on the left.
Total monthly cost — input + output tokens combined.
Bill breakdown.
| Provider | Monthly total | |
|---|---|---|
| $44.0 | Sign up ↗ |