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Google: Gemini 3.1 Pro Preview Custom Tools provider comparison

google/gemini-3.1-pro-preview-customtools

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...

Endpoints:
1
Context:
1M
Input:
text, audio, image, video, file
Output:
text
Compare this model in a set →

At a glance

Comparison winners

Based on 1,000 input and 500 output tokens using the latest published median speed data.

Best cost/speed trade-off

Google AI Studiogoogle-ai-studio

$5.3333 / 1M tokens

8.15 s estimated response

Cheapest

Google AI Studiogoogle-ai-studio

$5.3333 / 1M tokens

$0.008 for the sample request

Fastest

Google AI Studiogoogle-ai-studio

8.15 s estimated response

$5.3333 / 1M tokens

Visual comparison

Price and performance charts

Compare published endpoint pricing and estimated response time visually.

Effective price by endpoint

USD per 1 million tokens for input and output. Lower is better.

Google AI Studio has the lowest estimated cost for 1,000 input and 500 output tokens at $0.008.

Estimated cost vs. response time

Based on 1,000 input and 500 output tokens. Cost is shown in USD per 1 million tokens. Lower and further left is better; the single best cost/speed trade-off appears at full opacity.

1 provider has complete pricing and speed data. Google AI Studio is closest to the ideal combination of lowest cost and fastest response.

Server-rendered comparison

Provider endpoints

Prompt and completion prices are effective USD per token as published by OpenRouter. Missing speed data never removes an endpoint.

Endpoint comparison for Google: Gemini 3.1 Pro Preview Custom Tools
Provider / routeCurrent pricing ↗Speed measurementsEndpoint details
Provider / route
Google AI Studiogoogle-ai-studio
CheapestFastestBest cost/speed trade-off
Current pricing
Input price
$2 / 1M tokens
Output price
$12 / 1M tokens
Sample cost
$0.008
Speed measurements
500-token response
8.15 s
Response starts
2.77 s
Output speed
93.0 tok/s
Endpoint details
Uptime (30 min)
100.00%
Context
1M
Model format
unknown
Max output
65.5K
11 parameters

include_reasoning, max_tokens, reasoning, reasoning_effort, response_format, seed, structured_outputs, temperature, tool_choice, tools, top_p

Endpoint data fetched .

Gemini 3.1 Pro Preview Custom Tools deployment guide

How to choose a Gemini 3.1 Pro Preview Custom Tools inference provider

Gemini 3.1 Pro Preview Custom Tools is indexed here as a text model by Google, with 1 provider endpoint from Google AI Studio. The comparison preserves each exact OpenRouter routing tag so pricing and performance observations can be connected to the route an application would actually request.

Match the endpoint to the workload

The model publishes a 1M-token context window. It accepts text, audio, image, video, file input and returns text output. 11 distinct supported parameters appear across the listed routes. Confirm limits on the specific endpoint rather than assuming every host exposes the same configuration.

Compare the real request economics

Google AI Studio currently has the lowest estimated cost for the standard 1,000-input/500-output-token sample at $0.008. Input-heavy and output-heavy applications can produce a different result, so review both per-million-token prices in the endpoint table.

Balance response start and generation speed

Google AI Studio currently has the shortest estimated 500-token response at 8.15 seconds. Google AI Studio is the single endpoint closest to the current ideal cost/speed combination. Recent observations can change, so validate finalists with your own prompts.