Gemini 3.1 Pro Preview

Google · family gemini-3.1-pro-preview-customtools

Identity and capabilities

Status
active
Context window
1,048,576
Maximum output
65,536
Image input
Yes
Reasoning
Yes
Tool calling
Yes
First seen
2026-08-08 22:59:25Z UTC
Last verified

Known source identifiers: google-direct: gemini-3.1-pro-preview-customtools · openrouter: google/gemini-3.1-pro-preview-customtools

Current offers

OpenRouterAggregator

google/gemini-3.1-pro-preview-customtools · availability available · · source official api

Provider limits: context 1,048,576 · maximum output 65,536 · vision Yes · reasoning Yes · tool use Yes

Pricing components as published by the source
ComponentService tierContextPriceUnitAs published
Cache writeStandardDefault context$0.375per 1M tokens0.000000375
Cached inputStandardDefault context$0.20per 1M tokens0.0000002
Input (image)StandardDefault context$0.000002per image0.000002
InputStandardDefault context$2.00per 1M tokens0.000002
Internal reasoningStandardDefault context$12.00per 1M tokens0.000012
OutputStandardDefault context$12.00per 1M tokens0.000012

GoogleAI Developer

gemini-3.1-pro-preview-customtools · availability available · · source official pricing page

Provider limits: context Unknown · maximum output Unknown · vision Unknown · reasoning Unknown · tool use Unknown

Pricing components as published by the source
ComponentService tierContextPriceUnitAs published
Cached inputBatchDefault context$0.20per 1M tokens$0.20
Cached inputBatchLong context$0.40per 1M tokens$0.40
Cached inputFlexDefault context$0.20per 1M tokens$0.20
Cached inputFlexLong context$0.40per 1M tokens$0.40
Cached inputPriorityDefault context$0.36per 1M tokens$0.36
Cached inputPriorityLong context$0.72per 1M tokens$0.72
Cached inputStandardDefault context$0.20per 1M tokens$0.20
Cached inputStandardLong context$0.40per 1M tokens$0.40
InputBatchDefault context$1.00per 1M tokens$1.00
InputBatchLong context$2.00per 1M tokens$2.00
InputFlexDefault context$1.00per 1M tokens$1.00
InputFlexLong context$2.00per 1M tokens$2.00
InputPriorityDefault context$3.60per 1M tokens$3.60
InputPriorityLong context$7.20per 1M tokens$7.20
InputStandardDefault context$2.00per 1M tokens$2.00
InputStandardLong context$4.00per 1M tokens$4.00
OutputBatchDefault context$6.00per 1M tokens$6.00
OutputBatchLong context$9.00per 1M tokens$9.00
OutputFlexDefault context$6.00per 1M tokens$6.00
OutputFlexLong context$9.00per 1M tokens$9.00
OutputPriorityDefault context$21.60per 1M tokens$21.60
OutputPriorityLong context$32.40per 1M tokens$32.40
OutputStandardDefault context$12.00per 1M tokens$12.00
OutputStandardLong context$18.00per 1M tokens$18.00

Active promotions

No officially confirmed promotion applies to this model.