Google Vertex AI: gemini-3.1-pro-preview-customtools

Name: Google Vertex AI: gemini-3.1-pro-preview-customtools
Author: Cloudflare AI Gateway

Input price

$2/1M tokens

Output price

$12/1M tokens

Capabilities

Show unsupported (7)

Infrastructure

Streaming

Details

Model IDgoogle-vertex-ai/gemini-3.1-pro-preview-customtools

ProviderCloudflare AI Gateway

CreatorGoogle Vertex AI

Familygemini-3.1

License—

Status—

Typechat

Input modalitiestext

Output modalitiestext

Open weight—

Parameters—

Architecture—

Context window—

Max input—

Max output—

Reasoning tokens—

Knowledge cutoff—

Release date—

Sourceofficial

Pricing

Input

Output

$12

Cache write

—

Cache read

—

Batch in

—

Batch out

—

Family Comparison: gemini-3.1

Model	Caps	Perf	Speed	Context	Max out	Pricing
Google AI Studio: gemini-3.1-flash-lite-preview-20260303	S	—	—	—	—	$0.25$1.5
Google AI Studio: gemini-3.1-flash-lite-preview	RTJJMSB	—	—	1.0M	66K	$0.25$1.5
OpenRouter: google/gemini-3.1-flash-lite-preview-20260303	S	—	—	—	—	$0.25$1.5
OpenRouter: google/gemini-3.1-flash-lite-preview	S	—	—	—	—	$0.25$1.5
Google AI Studio: gemini-3.1-flash-image-preview-20260226	S	—	—	—	—	$0.5$3
Google AI Studio: gemini-3.1-flash-image-preview	RTJJMSB	—	—	131K	33K	$0.5$3
OpenRouter: google/gemini-3.1-flash-image-preview-20260226	S	—	—	—	—	$0.5$3
OpenRouter: google/gemini-3.1-flash-image-preview	S	—	—	—	—	$0.5$3
Google AI Studio: gemini-3.1-pro-preview-20260219	S	—	—	—	—	$2$12
Google AI Studio: gemini-3.1-pro-preview-customtools-20260219	S	—	—	—	—	$2$12
Google AI Studio: gemini-3.1-pro-preview-customtools	S	—	—	—	—	$2$12
Google AI Studio: gemini-3.1-pro-preview	RTJJMSB	—	—	1.0M	66K	$2$12
Google Vertex AI: gemini-3.1-pro-preview-customtools	S	—	—	—	—	$2$12
Google Vertex AI: gemini-3.1-pro-preview	S	—	—	—	—	$2$12
OpenRouter: google/gemini-3.1-pro-preview-20260219	S	—	—	—	—	$2$12
OpenRouter: google/gemini-3.1-pro-preview-customtools-20260219	S	—	—	—	—	$2$12
OpenRouter: google/gemini-3.1-pro-preview-customtools	S	—	—	—	—	$2$12
OpenRouter: google/gemini-3.1-pro-preview	S	—	—	—	—	$2$12

API

GET/v1/models/cloudflare-ai-gateway/google-vertex-ai/gemini-3.1-pro-preview-customtools

Google Vertex AI: gemini-3.1-pro-preview-customtools

google-vertex-ai/gemini-3.1-pro-preview-customtools

Changes · 3 entries

google-vertex-ai/gemini-3.1-pro-preview-customtoolsupdate1cd659eMar 24, 2026, 04:19 AM

modalitiesinput["text"]output["text"]

google-vertex-ai/gemini-3.1-pro-preview-customtoolsupdate2b100acMar 23, 2026, 05:30 AM

model_typechat

google-vertex-ai/gemini-3.1-pro-preview-customtoolscreate7a4f1f6Mar 22, 2026, 05:43 AM