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ModelCap

Gemini 3.1 Pro Preview Custom Tools

No linked weights

Google

Gemini 3.1 Pro Preview Custom Tools is a language model from Google. Its rank belongs to Gemini 3.1 Pro Preview, the model this route serves. It is listed at $2.00 per million input tokens and $12.00 per million output tokens from one provider. It reads up to 1M tokens of context, with no downloadable weights linked in the current source data.

Figures as of 6 Nov 2026, 20:32 UTC · download the public dataset · methodology

ModelCap Index
See primary model · Gemini 3.1 Pro Preview
Route-specific operations remain below
Market Gravity
35.6
Secondary market signal

This separately configured or accelerated route is reviewed as the same underlying model identity as Gemini 3.1 Pro Preview. That canonical product owns rank and capability evidence; pricing, providers and other operational differences remain route-specific below.

Input
$2.00
per 1M tokens
Output
$12.00
per 1M tokens
Context
1M
tokens
Providers
1
endpoint

Providers

Uptime measured over the last 30 minutes
ProviderInputOutputContextQuantUptime
Google AI Studio$2.00$12.001M——

Deployment readiness

Metadata index
30.1
limited · 38% metadata coverage
Not capability
Artifact reproducibility
0.0
Access & legal clarity
30.3
Deployability
80.0
Evaluation provenance
0.0

Not yet published: a pinned repository revision, the architecture and model type, a parameter count, safetensors weight metadata, the base model it derives from, a declared licence, a link to the licence terms, admitted benchmark results, results across several capability areas, results from more than one source, a confident match to its benchmark entries, pinned evaluation dataset versions.

A metadata completeness and deployability index—not a safety certification, quality grade, or production-readiness claim.

Market activity

Venue coverage
Market Gravity
35.6
OpenRouter weekly popularity
#268 of 339

Market Gravity uses OpenRouter’s full-catalogue popularity order. Sparse Vercel top-ten observations appear only when published and do not affect the score.

Market Gravity breakdown

Usage55%
4.0

OpenRouter weekly popularity across the full model catalogue.

Liquidity25%
95.8

Independent providers versus the model's open or closed cohort, weighted by uptime.

Open reach15%
50.0

Hugging Face 30-day downloads for open models; neutral for closed models.

Freshness5%
38.0

Time since first public availability, on a six-month half-life.

Specification

Model ID
google/gemini-3.1-pro-preview-customtools
Context window
1M tokens
Declared output cap
66K tokens

OpenRouter catalogue or provider-endpoint declaration. Limits can vary by provider and prompt length; a model-wide maximum has not been independently verified. OpenRouter metadata

Inputs
Text, Audio, Image, Video, File
Outputs
Text
Tokenizer
Gemini
Cached input tokens
$0.20 / 1M
First seen on OpenRouter
25 Feb 2026

Capabilities

  • Supported: Reasoning
  • Supported: Tool use
  • Supported: Structured output
  • Supported: Response format
  • Not supported: Moderated