The Orchestrator › Models › Google

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...

Specifications

ProviderGoogle
Model IDgoogle/gemini-3.1-pro-preview-customtools
Context window1.0M tokens (1,048,576)
Modalitiestext + image + file + audio + video → text
TokenizerGemini
Router sourcesOpenRouter
Released2026-02-25
Tracked since2026-11-14
PopularityNot in the ranked set
ReasoningMandatory

Pricing (per million tokens)

VariantSourceAPI IDInputOutputContext
standardOpenRoutergoogle/gemini-3.1-pro-preview-customtools$2.00$12.001.0M

Recorded price history

DateInput / 1MOutput / 1MContext
2026-11-14$2.00$12.001.0M

Capabilities

Vision (image input)Audio inputVideo inputFile inputAgentic tool useStructured outputsReasoning (always on)1M+ context windowControllable reasoning

Supported parameters

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