Gemini 3.1 Pro Preview is Google's language model with a 1.0M context window and up to 66K output tokens, available from 6 providers, starting at $2.00 / 1M input and $12.00 / 1M output. A preview release of Gemini 3.1 Pro providing early access to its frontier reasoning, vision, and tool-use capabilities.
Specifications
Canonical IDgoogle-gemini-3-1-pro-preview
TypeLanguage
StatusActive
CreatorGoogleGoogle
Providers
Context Window1.0M tokens
Max Output66K tokens
Input ModalitiesAudioImagePDFTextVideo
Output ModalitiesText
Reasoning Effortsdefault
Release Date · 8 months ago
Knowledge Cutoff · 2 years ago
Benchmarks
Intelligence Index
#84
Coding Index
#30
GPQA
#5
HLE
#16
IFBench
#18
Time to First Token
#570
SciCode
#13
LCR
#31
TerminalBench Hard
#8
TAU2
#23
Output TPS
#90

Capabilities

Input5/5
Text✓
Image✓
Audio✓
Video✓
PDF✓
Output1/5
Text✓
Image·
Audio·
Video·
Embedding·
Capabilities9/13
Reasoning✓
Adaptive Reasoning·
Function Calling✓
Parallel Function Calling·
Structured Outputs✓
Native JSON Schema✓
Web Search✓
URL Context✓
Computer Use·
Code Execution✓
File Search✓
Prompt Caching✓
Assistant Prefill·

Pricing by Provider

US Dollar ($)
Per 1M tokens
ProviderStandardFlexFastBatch
Input
$ / 1M
Output
$ / 1M
Cache Read
$ / 1M
Cache Write 5m
$ / 1M
Reasoning
$ / 1M
Audio In
$ / 1M
Image In
$ / image
Image Out
$ / image
Web Search
$ / request
Input
$ / 1M
Output
$ / 1M
Cache Read
$ / 1M
Input
$ / 1M
Output
$ / 1M
Cache Read
$ / 1M
Input
$ / 1M
Output
$ / 1M
Reasoning
$ / 1M
Audio In
$ / 1M
Image In
$ / image
Web Search
$ / request
Aihubmix
aihubmix/gemini-3.1-pro-preview
$2.00$12.00$0.2N/AN/AN/AN/AN/AN/A————————————
Google Gemini logo
Google Gemini
gemini/gemini-3.1-pro-preview
$2.00$12.00$0.2N/AN/AN/AN/AN/AN/A$1.00$6.00$0.2$3.60$21.60$0.36$1.00$6.00N/AN/AN/AN/A
Google Vertex AI logo
Google Vertex AI
gemini-3.1-pro-preview
$2.00$12.00$0.2$0.25
whole_request
N/AN/AN/A$0.000120N/A$1.00$6.00$0.2$3.60$21.60$0.36$1.00$6.00N/AN/AN/AN/A
OpenRouter logo
OpenRouter
google/gemini-3.1-pro-preview
$2.00$12.00$0.2$0.375$12.00$2.00$0.000002N/A$0.014——————N/AN/AN/AN/AN/AN/A
OpenRouter logo
OpenRouter
google/gemini-3.1-pro-preview:batch
———————————————$1.00$6.00$6.00$1.00$0.000001$0.014
Perplexity logo
Perplexity
perplexity/google/gemini-3.1-pro-preview
$2.00$12.00$0.2N/AN/AN/AN/AN/AN/A————————————
Vercel AI Gateway logo
Vercel AI Gateway
google/gemini-3.1-pro-preview
$2.00$12.00$0.2N/AN/AN/AN/AN/AN/A$1.00$6.00N/A$3.60$21.60$0.36——————

Cost Calculator

US Dollar ($)
Preset:

Versions

VersionReleasedContextInput / 1MOutput / 1MStatus
Gemini 3 Pro Image131K$2.00$12.00Available
Gemini 3.1 Pro Preview1.0M$2.00$12.00Current
Gemini 3 Pro Preview1.0M$2.00$12.00Deprecated
Gemini 3 Pro Preview Low————Available
Gemini 3 Pro—1.0M$1.00$6.00Available
Gemini 3 Pro Image Generation————Available
Gemini 3 Pro Live——$1.00$6.00Available
Gemini 3 Pro Live Image————Available
Gemini 3 Pro Live Image Generation————Available
Gemini 2.5 Pro1.0M$1.25$10.00Deprecated
Gemini 2.5 Pro Preview1.0M$1.25$10.00Available

Other Models

ModelTierReleasedContextInput / 1MOutput / 1M
Gemini 4 Argon—————
Gemini 3.8 FlashFlash1.0M$0.750$3.75
Gemini 3.7 FlashFlash1.0M$0.750$3.75
Gemini 3.6 FlashFlash1.0M$0.750$3.75
Gemini 3.5 Flash LiteFlash-lite1.0M$0.150$1.25
Gemini 3.1 Flash Lite ImageFlash-lite66K$0.250$1.50
Gemini 3.1 Flash ImageFlash131K$0.250$1.50
Gemini 3.5 FlashFlash1.0M$0.750$4.50
Gemini 3.1 Flash LiteFlash-lite1.0M$0.125$0.750
Gemini 3.1 Flash Lite PreviewFlash-lite1.0M$0.250$1.50

Model IDs

aihubmix/gemini-3.1-pro-preview
gemini-3-1-pro-preview
gemini-3.1-pro-preview
gemini/gemini-3.1-pro-preview
google-gemini-3-1-pro-preview
google/gemini-3.1-pro-preview
google/gemini-3.1-pro-preview:batch
openrouter/google/gemini-3.1-pro-preview
openrouter/google/gemini-3.1-pro-preview:batch
perplexity/google/gemini-3.1-pro-preview
publishers/google/models/gemini-3.1-pro-preview
vertex_ai/gemini-3.1-pro-preview