Gemini 3.1 Flash Image (Nano Banana 2)
Googlefamily · Gemini 3.1ai.google.dev/gemini-api/docs/models/gemini-3.1-
High-efficiency production-scale visual creation, combining the intelligence of the Gemini 3 series with lightning-fast generation speeds.
Updated 1 h ago · first seen 11 Sept 2026
model_01M293V7TTW1QKGN73X8MD8PXM
Overview
Identity
- Canonical model
- Yesidentity confidence: highOne row per real model release. Artifacts (checkpoints, quantisations, conversions) and folded evaluation variants point here.
- Official checkpoints
- None recordedofficial_checkpoints = hf_repo identifiers carried by the model itself; artifacts are separate entities pointing here through canonical_id.
- Artifacts
- None recordedSeparate entities (checkpoint · quantization · conversion · packaging) pointing to this model through canonical_id.
- Provider deployments
- 2
- API aliases
- gemini-3.1-flash-imagegoogle/gemini-3.1-flash-imageIdentifiers under which providers and evaluators refer to this model.
- Folded evaluation variants
- 0Effort / thinking variants (…-high, …-non-reasoning) are result configurations of this model, not separate models. Their old URLs redirect here.
Openness
Openness not classified yet — no sourced evidence to place this model in the ontology.
Key facts
- Release date
Source:OpenRouter public model & pricing listingT2observed 13 h agomedium
- Status
Source:Google AI for Developers (Gemini API docs)T1observed 13 h agohigh
- Official page
Source:Google AI for Developers (Gemini API docs)T1observed 13 h agohigh
- API model id
Source:Google AI for Developers (Gemini API docs)T1observed 13 h agohigh
- Openrouter id
Source:OpenRouter public model & pricing listingT2observed 13 h agomedium
Architecture
- Tokenizer
Source:OpenRouter public model & pricing listingT2observed 13 h agomedium
Capabilities
Modalities
- Modalities
- documentimagetextvideo
- Input
- documentimagetextvideo
- Output
- imagetext
Capabilities
Tool calling
No
Google AI for Developers (Gemini API docs) · T1
Structured output
No
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
Unavailable
Fine-tuning available
Unavailable
- Context window
Source:Google AI for Developers (Gemini API docs)T1observed 13 h agohigh
- Max output
Source:Google AI for Developers (Gemini API docs)T1observed 13 h agohigh
- Tokenizer
Source:OpenRouter public model & pricing listingT2observed 13 h agomedium
Providers & Pricing3
All offers in the price terminal →USD per 1M tokens as published by each provider; native units (per-request fees, flex/priority tiers) are kept verbatim. Rows are append-only — every price change is kept in the history below. Cost of a workload →
Price history
Output price · USD / 1M tokens 2 providers
- Google Gemini API
- OpenRouter
- OpenRouterfirst observed $312 Sept 2026
- Google Gemini APIfirst observed $311 Sept 2026
Input price · USD / 1M tokens 2 providers
- Google Gemini API
- OpenRouter
- OpenRouterfirst observed $0.5012 Sept 2026
- Google Gemini APIfirst observed $0.5011 Sept 2026
Versions & Artifacts0
Version history
Context windowfirst observation only
11 Sept 2026current
Max outputfirst observation only
11 Sept 2026current
Statusfirst observation only
11 Sept 2026current
Each hop is a claim: click a value for its source, tier and observation time. Nothing is overwritten — a new observation closes the previous claim.
Artifacts 0
No artifact (checkpoint, quantisation, conversion or packaging) points to this model yet.
Timeline3
Full timeline →OpenRouter lists Gemini 3.1 Flash Image (Nano Banana 2) at $0.5 in / $3 out per 1M tokens
openrouterGemini 3.1 Flash Image (Nano Banana 2): capabilities changed from ["Image generation", "Search grounding", "Thinking"] to ["image_generation", "reasoning", "search_grounding"]
CapabilitiesImage generation, Search grounding, Thinking→image_generation, reasoning, search_groundinggoogleGemini 3.1 Flash Image (Nano Banana 2): family changed from Gemini to Gemini 3.1
FamilyGemini→Gemini 3.1google
Change history87
Viewing AI Atlas as of 1 Jul 2026 — attributes exactly as the atlas knew them on that day; later corrections are not shown.
Back to today →Gemini 3.1 Flash Image (Nano Banana 2) was not yet in AI Atlas on 1 Jul 2026
Familyfamily2
Release daterelease_date1
Statusstatus1
Context windowcontext_length1
Max outputmax_output_tokens1
Modalitiesmodalities8conflicting claims
Input modalitiesmodalities_input8conflicting claims
Output modalitiesmodalities_output1
Tokenizertokenizer1
API model idapi_model_id1
Official pageofficial_url1
Capabilitiescapabilities2
Capabilities rawcapabilities_raw1
Descriptiondescription42
Latest updatelatest_update1
Openrouter idopenrouter_id1
Openrouter listed atopenrouter_listed_at1
Reasoningreasoning1
Structured outputstructured_output8conflicting claims
Supported parameterssupported_parameters1
Tool callingtool_calling1
Versionsversions1
Visionvision1
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 →
Provenance
Attributed facts
23
Source tiers
T1T218 / 5
Freshest observation
1 h ago
Conflicts
21 flagged
Source documents 4
Tier 1 = official/primary, 2 = quality secondary, 3 = community, 4 = unverified. Every snapshot is archived; see all sources and the methodology.
Data quality (62/100) measures how well AI Atlas knows this entity — completeness, primary-source ratio, freshness, conflicts — never how good the model is. Methodology →