Google / google/gemini-3.1-pro-preview-customtools

Gemini 3.1 Pro Preview - access through LLMTR

Positioned for teams that want stronger reasoning, better token efficiency, and more consistent output on difficult tasks. Strong for codebases, research workflows, and tool-heavy product experiences.

Technical specifications

Canonical IDgoogle/gemini-3.1-pro-preview-customtools
ProviderGoogle
Context window1,048,576 tokens
OperationsCHAT_COMPLETIONS, RESPONSES
Modalitiestext, image, audio, video

Pricing

An 8% platform margin applies to credit top-ups; model usage prices are not separately marked up.

OperationMetricUnitPrice
CHAT_COMPLETIONSINPUT_TEXTPER_1M_TOKENS$2.00
CHAT_COMPLETIONSOUTPUT_TEXTPER_1M_TOKENS$12.00
CHAT_COMPLETIONSCACHE_STORAGEPER_1M_TOKEN_HOURS$4.50
CHAT_COMPLETIONSTOOL_CALLPER_1K_CALLS$14.00
RESPONSESINPUT_TEXTPER_1M_TOKENS$2.00
RESPONSESOUTPUT_TEXTPER_1M_TOKENS$12.00
RESPONSESCACHE_STORAGEPER_1M_TOKEN_HOURS$4.50
RESPONSESTOOL_CALLPER_1K_CALLS$14.00

Example usage

With existing OpenAI SDK flows, change only the base URL and model identifier.

curl https://llmtr.com/v1/chat/completions   -H "Authorization: Bearer llmtr-your_key"   -H "Content-Type: application/json"   -d '{"model":"google/gemini-3.1-pro-preview-customtools","messages":[{"role":"user","content":"Hello"}]}'

Guides about this model

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