Specification

Family: Gemini
Source:Google AI for Developers (Gemini API docs)T1observed 2 h agohigh
Release date: 19 Feb 2026
Source:OpenRouter public model & pricing listingT2observed 2 h agomedium
Status: preview
Source:Google AI for Developers (Gemini API docs)T1observed 2 h agohigh
Context window: 1.05M tokens
Source:Google AI for Developers (Gemini API docs)T1observed 2 h agohigh
Max output: 65.5K tokens
Source:Google AI for Developers (Gemini API docs)T1observed 2 h agohigh
Modalities: audio, image, pdf, text, video
Source:Google AI for Developers (Gemini API docs)T1observed 2 h agohigh
Input modalities: text, image, video, audio, pdf
Source:Google AI for Developers (Gemini API docs)T1observed 2 h agohigh
Output modalities: text
Source:Google AI for Developers (Gemini API docs)T1observed 2 h agohigh
Tokenizer: Gemini
Source:OpenRouter public model & pricing listingT2observed 2 h agomedium
API model id: gemini-3.1-pro-preview
Source:Google AI for Developers (Gemini API docs)T1observed 2 h agohigh
Official page: ai.google.dev/gemini-api/docs/models/gemini-3.1-pro-preview
Source:Google AI for Developers (Gemini API docs)T1observed 2 h agohigh
Capabilities: Caching, Code execution, File search, Function calling, Grounding with Google Maps, Search grounding, Structured outputs, Thinking, URL context
Source:Google AI for Developers (Gemini API docs)T1observed 2 h agohigh
File input: Yes
Source:OpenRouter public model & pricing listingT2observed 2 h agomedium
Latest update: 2026-02
Source:Google AI for Developers (Gemini API docs)T1observed 2 h agohigh
Openrouter id: google/gemini-3.1-pro-preview
Source:OpenRouter public model & pricing listingT2observed 2 h agomedium
Supported parameters: include_reasoning, max_tokens, reasoning, reasoning_effort, response_format, seed, stop, structured_outputs, temperature, tool_choice, tools, top_p
Source:OpenRouter public model & pricing listingT2observed 2 h agomedium
Versions: {"preview":["gemini-3.1-pro-preview","gemini-3.1-pro-preview-customtools"]}
Source:Google AI for Developers (Gemini API docs)T1observed 2 h agohigh

Each value shows its source, tier and observation time. Conflicting claims are kept side by side and flagged — never averaged. How AI Atlas records facts →

Provenance

Attributed facts

23

Source tiers

T1T218 / 5

Freshest observation

2 h ago

Conflicts

2 flagged

Modalities

Modalities: audioimagepdftextvideo
Input: textimagevideoaudiopdf
Output: text

Capabilities

Tool calling
Yes
Google AI for Developers (Gemini API docs) · T1
Structured output
Yes
Google AI for Developers (Gemini API docs) · T1
Reasoning
Yes
Google AI for Developers (Gemini API docs) · T1
Vision
Yes
Google AI for Developers (Gemini API docs) · T1
Audio
Yes
Google AI for Developers (Gemini API docs) · T1
Fine-tuning available
Unavailable

Context window: 1.05M tokens
Source:Google AI for Developers (Gemini API docs)T1observed 2 h agohigh
Max output: 65.5K tokens
Source:Google AI for Developers (Gemini API docs)T1observed 2 h agohigh
Tokenizer: Gemini
Source:OpenRouter public model & pricing listingT2observed 2 h agomedium

No benchmark results recorded

Results appear when a tier 1–3 source publishes them; we never copy scores without a source.

Current prices

Current prices per 1M tokens
Provider	Input / 1M	Output / 1M	Cached in	Batch in / out	Context	Observed	Source
Google Gemini APIgoogle/gemini-3.1-pro-preview:batch	$1	$6	—	—	1.05M	2 h ago	openrouter.aiT2
Google Gemini APIgemini-3.1-pro-preview	$2	$12	$0.20	$1 / $6	—	2 h ago	ai.google.devT1
Google Gemini APIgoogle/gemini-3.1-pro-preview	$2	$12	$0.20	—	1.05M	2 h ago	openrouter.aiT2

USD per 1M tokens as published by each provider (USD). Rows are append-only: every change is kept in the history below.

Available through 1

Google Gemini API

Price history

Input price · USD / 1M tokens

Output price · USD / 1M tokens

Google Gemini API

No hardware estimate available

Estimates need a parameter count; this model has none recorded from a source.

No lineage recorded

Lineage comes from explicit `derived_from`, `fine_tuned_from`, `distilled_from` and `quantized_from` relations stated by sources.

Papers 0

No papers linked yet.

Repositories 0

No repositories linked yet.

As of

Rewind the record: see this entity's attributes exactly as AI Atlas knew them on a given day.

Claim history

25 claims · 23 properties2 conflicting

Familyfamily1

Claim history for Family
Value	Valid from → to	Status	Source	Confidence	Extractor
Gemini	11 Sept 2026 20:51 UTC → current	current	Google AI for Developers (Gemini API docs)T1	high	deterministic

Release daterelease_date1

Claim history for Release date
Value	Valid from → to	Status	Source	Confidence	Extractor
19 Feb 2026	11 Sept 2026 21:10 UTC → current	current	OpenRouter public model & pricing listingT2	medium	deterministic

Statusstatus1

Claim history for Status
Value	Valid from → to	Status	Source	Confidence	Extractor
preview	11 Sept 2026 20:51 UTC → current	current	Google AI for Developers (Gemini API docs)T1	high	deterministic

Context windowcontext_length1

Claim history for Context window
Value	Valid from → to	Status	Source	Confidence	Extractor
1.05M tokens	11 Sept 2026 20:52 UTC → current	current	Google AI for Developers (Gemini API docs)T1	high	deterministic

Max outputmax_output_tokens1

Claim history for Max output
Value	Valid from → to	Status	Source	Confidence	Extractor
65.5K tokens	11 Sept 2026 20:52 UTC → current	current	Google AI for Developers (Gemini API docs)T1	high	deterministic

Modalitiesmodalities2conflicting claims

Claim history for Modalities
Value	Valid from → to	Status	Source	Confidence	Extractor
audio, image, text, video	11 Sept 2026 21:10 UTC → current	conflicting	OpenRouter public model & pricing listingT2	medium	deterministic
audio, image, pdf, text, video	11 Sept 2026 20:52 UTC → current	current	Google AI for Developers (Gemini API docs)T1	conflicted	deterministic

Input modalitiesmodalities_input2conflicting claims

Claim history for Input modalities
Value	Valid from → to	Status	Source	Confidence	Extractor
audio, image, text, video	11 Sept 2026 21:10 UTC → current	conflicting	OpenRouter public model & pricing listingT2	medium	deterministic
text, image, video, audio, pdf	11 Sept 2026 20:52 UTC → current	current	Google AI for Developers (Gemini API docs)T1	conflicted	deterministic

Output modalitiesmodalities_output1

Claim history for Output modalities
Value	Valid from → to	Status	Source	Confidence	Extractor
text	11 Sept 2026 20:52 UTC → current	current	Google AI for Developers (Gemini API docs)T1	high	deterministic

Tokenizertokenizer1

Claim history for Tokenizer
Value	Valid from → to	Status	Source	Confidence	Extractor
Gemini	11 Sept 2026 21:10 UTC → current	current	OpenRouter public model & pricing listingT2	medium	deterministic

API model idapi_model_id1

Claim history for API model id
Value	Valid from → to	Status	Source	Confidence	Extractor
gemini-3.1-pro-preview	11 Sept 2026 20:51 UTC → current	current	Google AI for Developers (Gemini API docs)T1	high	deterministic

Official pageofficial_url1

Claim history for Official page
Value	Valid from → to	Status	Source	Confidence	Extractor
https://ai.google.dev/gemini-api/docs/models/gemini-3.1-pro-preview	11 Sept 2026 20:52 UTC → current	current	Google AI for Developers (Gemini API docs)T1	high	deterministic

Audioaudio1

Claim history for Audio
Value	Valid from → to	Status	Source	Confidence	Extractor
Yes	11 Sept 2026 20:52 UTC → current	current	Google AI for Developers (Gemini API docs)T1	high	deterministic

Capabilitiescapabilities1

Claim history for Capabilities
Value	Valid from → to	Status	Source	Confidence	Extractor
Caching, Code execution, File search, Function calling, Grounding with Google Maps, Search grounding, Structured outputs, Thinking, URL context	11 Sept 2026 20:52 UTC → current	current	Google AI for Developers (Gemini API docs)T1	high	deterministic

Descriptiondescription1

Claim history for Description
Value	Valid from → to	Status	Source	Confidence	Extractor
Advanced intelligence, complex problem-solving skills, and powerful agentic and vibe coding capabilities.	11 Sept 2026 20:51 UTC → current	current	Google AI for Developers (Gemini API docs)T1	high	deterministic

File inputfile_input1

Claim history for File input
Value	Valid from → to	Status	Source	Confidence	Extractor
Yes	11 Sept 2026 21:10 UTC → current	current	OpenRouter public model & pricing listingT2	medium	deterministic

Latest updatelatest_update1

Claim history for Latest update
Value	Valid from → to	Status	Source	Confidence	Extractor
2026-02	11 Sept 2026 20:52 UTC → current	current	Google AI for Developers (Gemini API docs)T1	high	deterministic

Openrouter idopenrouter_id1

Claim history for Openrouter id
Value	Valid from → to	Status	Source	Confidence	Extractor
google/gemini-3.1-pro-preview	11 Sept 2026 21:10 UTC → current	current	OpenRouter public model & pricing listingT2	medium	deterministic

Reasoningreasoning1

Claim history for Reasoning
Value	Valid from → to	Status	Source	Confidence	Extractor
Yes	11 Sept 2026 20:52 UTC → current	current	Google AI for Developers (Gemini API docs)T1	high	deterministic

Structured outputstructured_output1

Claim history for Structured output
Value	Valid from → to	Status	Source	Confidence	Extractor
Yes	11 Sept 2026 20:52 UTC → current	current	Google AI for Developers (Gemini API docs)T1	high	deterministic

Supported parameterssupported_parameters1

Claim history for Supported parameters
Value	Valid from → to	Status	Source	Confidence	Extractor
include_reasoning, max_tokens, reasoning, reasoning_effort, response_format, seed, stop, structured_outputs, temperature, tool_choice, tools, top_p	11 Sept 2026 21:10 UTC → current	current	OpenRouter public model & pricing listingT2	medium	deterministic

Tool callingtool_calling1

Claim history for Tool calling
Value	Valid from → to	Status	Source	Confidence	Extractor
Yes	11 Sept 2026 20:52 UTC → current	current	Google AI for Developers (Gemini API docs)T1	high	deterministic

Versionsversions1

Claim history for Versions
Value	Valid from → to	Status	Source	Confidence	Extractor
{"preview":["gemini-3.1-pro-preview","gemini-3.1-pro-preview-customtools"]}	11 Sept 2026 20:52 UTC → current	current	Google AI for Developers (Gemini API docs)T1	high	deterministic

Visionvision1

Claim history for Vision
Value	Valid from → to	Status	Source	Confidence	Extractor
Yes	11 Sept 2026 20:52 UTC → current	current	Google AI for Developers (Gemini API docs)T1	high	deterministic

Claims are temporal and append-only: a new observation closes the previous claim (valid_to) instead of overwriting it. Conflicting claims from different sources are kept side by side and flagged — never averaged. Methodology →

11 Sept 2026
Listed by providerModelGemini 3.1 Pro PreviewGoogle
Google Gemini API lists Gemini 3.1 Pro Preview at $1 in / $6 out per 1M tokens
openrouter
openrouter.ai
11 Sept 2026
Listed by providerModelGemini 3.1 Pro PreviewGoogle
Google Gemini API lists Gemini 3.1 Pro Preview at $2 in / $12 out per 1M tokens
openrouter
openrouter.ai
11 Sept 2026
New modelModelGemini 3.1 Pro PreviewGoogle
New model: Gemini 3.1 Pro Preview (Google)
google
ai.google.dev
11 Sept 2026
Listed by providerModelGemini 3.1 Pro PreviewGoogle
Google Gemini API lists Gemini 3.1 Pro Preview at $2 in / $12 out per 1M tokens
google
ai.google.dev

Full timeline →

Source documents
Source	Document	Type	Tier	Last observed	Snapshots
Google AI for Developers (Gemini API docs)	ai.google.dev/gemini-api/docs/models/gemini-3.1-pro-preview	model_page	T1· Official	2 h ago	3
Google AI for Developers (Gemini API docs)	ai.google.dev/gemini-api/docs/models	model_docs	T1· Official	2 h ago	3
Google AI for Developers (Gemini API docs)	ai.google.dev/gemini-api/docs/pricing	pricing	T1· Official	2 h ago	3
OpenRouter public model & pricing listing	openrouter.ai/api/v1/models	catalogue	T2· Quality secondary	2 h ago	1

Tier 1 = official/primary, 2 = quality secondary, 3 = community, 4 = unverified. Every snapshot is archived; see all sources and the methodology.