Catalog Changes · 2026-10-14 00:05:27.386003

Google: Nano Banana 2 (Gemini 3.1 Flash Image Preview) · 2026-10-14 00:05:27.386003 UTC

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2 Changed Fields

Field / Array Position	Previous Value	Observed Value
Benchmarks · Design Arena[0] · Elo	1262	1261
Benchmarks · Design Arena[1] · Elo	1277	1276

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Google: Nano Banana 2 (Gemini 3.1 Flash Image Preview)

google/gemini-3.1-flash-image-preview

OpenRouter Catalog Changes

Last Observed: 2026-10-14 12:02:51.527483 UTC

Gemini 3.1 Flash Image Preview, a.k.a. "Nano Banana 2," is Google’s latest state of the art image generation and editing model, delivering Pro-level visual quality at Flash speed. It combines...

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Architecture And Modalities · 3

Architecture · Instruct Type API Details /architecture/instruct_type Explicit Null	Explicit Null
Architecture · Modality API Details /architecture/modality text+image->text+image	text+image->text+image
Architecture · Tokenizer API Details /architecture/tokenizer Gemini	Gemini

Catalog Identity And Metadata · 11

Canonical Slug API Details /canonical_slug google/gemini-3.1-flash-image-preview-20260226	google/gemini-3.1-flash-image-preview-20260226
Context Tokens API Details /context_length 65536	65,536
Created API Details /created 1772119558	2026-02-26 15:25:58 UTC
Description API Details /description Gemini 3.1 Flash Image Preview, a.k.a. "Nano Banana 2," is Google’s latest state of the art image generation and editing model, delivering Pro-level visual quality at Flash speed. It combines...	Gemini 3.1 Flash Image Preview, a.k.a. "Nano Banana 2," is Google’s latest state of the art image generation and editing model, delivering Pro-level visual quality at Flash speed. It combines...
Expiration Date API Details /expiration_date Explicit Null	Explicit Null
Hugging Face Id API Details /hugging_face_id Empty String	Empty String
Id API Details /id google/gemini-3.1-flash-image-preview	google/gemini-3.1-flash-image-preview
Knowledge Cutoff API Details /knowledge_cutoff Explicit Null	Explicit Null
Links · Details API Details /links/details /api/v1/models/google/gemini-3.1-flash-image-preview-20260226/endpoints	/api/v1/models/google/gemini-3.1-flash-image-preview-20260226/endpoints
Name API Details /name Google: Nano Banana 2 (Gemini 3.1 Flash Image Preview)	Google: Nano Banana 2 (Gemini 3.1 Flash Image Preview)
Supported Voices API Details /supported_voices Explicit Null	Explicit Null

Default Parameters · 6

Default Parameters · Frequency Penalty API Details /default_parameters/frequency_penalty Explicit Null	Explicit Null
Default Parameters · Presence Penalty API Details /default_parameters/presence_penalty Explicit Null	Explicit Null
Default Parameters · Repetition Penalty API Details /default_parameters/repetition_penalty Explicit Null	Explicit Null
Default Parameters · Temperature API Details /default_parameters/temperature Explicit Null	Explicit Null
Default Parameters · Top K API Details /default_parameters/top_k Explicit Null	Explicit Null
Default Parameters · Top P API Details /default_parameters/top_p Explicit Null	Explicit Null

Request Limits · 1

Per Request Limits API Details /per_request_limits Explicit Null	Explicit Null

Pricing · 4

Output Price · USD/Token API Details /pricing/completion 0.000003	0.000003
Pricing · Image Output API Details /pricing/image_output 0.00006	0.00006
Input Price · USD/Token API Details /pricing/prompt 0.0000005	0.0000005
Pricing · Web Search API Details /pricing/web_search 0.014	0.014

Reasoning · 3

Reasoning · Default Effort API Details /reasoning/default_effort minimal	minimal
Reasoning · Default Enabled API Details /reasoning/default_enabled True	True
Reasoning · Mandatory API Details /reasoning/mandatory False	False

Provider Limits · 3

Top Provider · Context Length API Details /top_provider/context_length 65536	65,536
Top Provider · Is Moderated API Details /top_provider/is_moderated False	False
Top Provider · Max Completion Tokens API Details /top_provider/max_completion_tokens 58982	58,982

API Structure And Container Types

Architecture API Details /architecture Object · See Fields	Object · See Fields
Architecture · Input Modalities API Details /architecture/input_modalities Array · See Items	Array · See Items
Architecture · Output Modalities API Details /architecture/output_modalities Array · See Items	Array · See Items
Benchmarks API Details /benchmarks Object · See Fields	Object · See Fields
Benchmarks · Design Arena API Details /benchmarks/design_arena Array · See Items	Array · See Items
Default Parameters API Details /default_parameters Object · See Fields	Object · See Fields
Links API Details /links Object · See Fields	Object · See Fields
Pricing API Details /pricing Object · See Fields	Object · See Fields
Reasoning API Details /reasoning Object · See Fields	Object · See Fields
Reasoning · Supported Efforts API Details /reasoning/supported_efforts Array · See Items	Array · See Items
Supported Parameters API Details /supported_parameters Array · See Items	Array · See Items
Top Provider API Details /top_provider Object · See Fields	Object · See Fields

Architecture · Input Modalities

2 items · source order preserved

image
text

API Details

Item	/architecture/input_modalities/*
1	image
2	text

Architecture · Output Modalities

2 items · source order preserved

image
text

API Details

Item	/architecture/output_modalities/*
1	image
2	text

Supported Parameters

9 items · source order preserved

include_reasoning
max_tokens
reasoning
reasoning_effort
response_format
seed
structured_outputs
temperature
top_p

API Details

Item	/supported_parameters/*
1	include_reasoning
2	max_tokens
3	reasoning
4	reasoning_effort
5	response_format
6	seed
7	structured_outputs
8	temperature
9	top_p

Benchmarks · Design Arena

3 items · source order preserved

Item	Arena	Category	Elo	Rank	Win Rate
1	models	graphicdesign	1261	4	66.3
2	models	image	1276	4	65.1
3	models	logo	1262	4	62.9

API Details

Item	/benchmarks/design_arena/*/arena	/benchmarks/design_arena/*/category	/benchmarks/design_arena/*/elo	/benchmarks/design_arena/*/rank	/benchmarks/design_arena/*/win_rate
1	models	graphicdesign	1261	4	66.3
2	models	image	1276	4	65.1
3	models	logo	1262	4	62.9

Reasoning · Supported Efforts

2 items · source order preserved

high
minimal

API Details

Item	/reasoning/supported_efforts/*
1	high
2	minimal