Google
·Released on Feb 25, 2026

Gemini 3.1 Pro Preview Custom Tools API Benchmarks, Pricing & Provider Data

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LLM

Gemini 3.1 Pro Preview Custom Tools API pricing covers undefined API provider} other undefined API providers}}, from $0.548/M to $6.00/M. Gemini 3.1 Pro Preview Custom Tools free API options are available from undefined provider} other undefined providers}}.

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...

Cost
$0.548/ 1M · 8:1 in:out
$0.088 in · $0.460 out

Specifications

Input and output token limits for this model, plus how it ranks on long-context understanding.

INPUT
1.0Mtokens
1.3K pages of text
OUTPUT
65.5Ktokens
8K128K1M4M
1.0M

Features

Technical Details

Input
Output
Released
Feb 2026
Documentation
Tokenizer
Gemini
Architecture
text+image+file+audio+video->text
Moderated
No
Supported parameters
include_reasoningmax_tokensreasoningreasoning_effortresponse_formatseedstructured_outputstemperaturetool_choicetoolstop_p

OpenRouter endpoints

1 endpoints

Third-party OpenRouter endpoint data, shown separately from LMSpeed measurements. Some 30-minute live performance fields only appear after syncing with an OpenRouter API key.

Provider endpointInputOutput1d uptime30m latency30m throughputContext / output
Google AI Studio
google-ai-studio
$2/M$12/M99.7%undefined tokens / undefined tokens

Pricing Comparison

Compare Gemini 3.1 Pro Preview Custom Tools API pricing across 20 providers. Prices range from $0.548/M to $6.00/M. KFCV50 offers the lowest rate at $0.548/M. 4 providers offer free API credits or a free tier.

ProviderHealthModel VariantGroupInput ($/M)Output ($/M)Speed (t/s)First tokenAudit
L1
100%
gemini-3.1-pro-preview-customtools
gemini_studio_enterprise_20
$0.548/M
Cache read$0.055/MImage$0.548/M
$3.29/M
L1
100%
gemini-3.1-pro-preview-customtools
gemini-vertex
$6.00/M
Cache read$0.600/M
$36.00/M
L1
99%
gemini-3.1-pro-preview-customtools
default
Free
Free
L1
100%
gemini-3.1-pro-preview-customtools
chongzhi
$0.822/M
Cache read$0.082/MImage$0.822/M
$4.93/M
L1
98%
gemini-3.1-pro-preview-customtools
SSVIP
$2.00/M
$12.00/M
L1
0%
gemini-3.1-pro-preview-customtools
vertex
$3.00/M
Cache read$0.300/M
$18.00/M
L1
0%
gemini-3.1-pro-preview-customtools
gemini
$4.00/M
Cache read$0.400/M
$24.00/M
L1
0%
gemini-3.1-pro-preview-customtools
vip_3
$4.40/M
Cache read$0.440/M
$26.40/M

Alternatives & Similar Models

Frequently Asked Questions

What benchmark data does Gemini 3.1 Pro Preview Custom Tools include?
LMSpeed shows Gemini 3.1 Pro Preview Custom Tools benchmark context, API price, output speed, first-token latency, and provider data across 24 providers when those signals are available.
What is the Gemini 3.1 Pro Preview Custom Tools API price?
Gemini 3.1 Pro Preview Custom Tools has pricing from undefined provider} other undefined providers}}, ranging from $0.548/M to $6.00/M. KFCV50 has the lowest listed price.
What does the Gemini 3.1 Pro Preview Custom Tools API pricing table include?
The Gemini 3.1 Pro Preview Custom Tools API pricing table compares 24 providers by input price, output price, free tier status, speed, first-token latency, and recent health data when available.
Which provider has the cheapest Gemini 3.1 Pro Preview Custom Tools API pricing?
KFCV50 currently has the lowest listed Gemini 3.1 Pro Preview Custom Tools price at $0.548/M across undefined provider} other undefined providers}}.
Is Gemini 3.1 Pro Preview Custom Tools API free?
Yes, Gemini 3.1 Pro Preview Custom Tools free API options are available through 4 providerundefined other undefined} on LMSpeed, including 兔子API, 兔子API, 兔子API, 兔子API. These providers offer free API credits or a free tier with no per-token charges.
Where can I get Gemini 3.1 Pro Preview Custom Tools free API access?
LMSpeed currently lists 4 free API providerundefined other undefined} for Gemini 3.1 Pro Preview Custom Tools: 兔子API, 兔子API, 兔子API, 兔子API. Check each provider row before using it because free tier limits can change.

Also known as

gemini-3.1-pro-preview-customtoolsgoogle/gemini-3.1-pro-preview-customtools

Rankings are based on community-submitted tests and periodic health probes. Advisory only, not official data.Standard benchmark data may include BenchLM and other public sources.

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