supported
Only provider-documented reasoning controls are shown; missing controls remain unpublished rather than inferred.
MODEL REFERENCE / GOOGLE
Nano Banana 2 (Gemini 3.1 Flash Image)
verified model reference.
Google image-generation and editing endpoint for efficient interactive visual creation; distinct from Nano Banana 2.1.
131,072context tokens
32,768max output
2026-10-12last verified
PRIMARY-SOURCE VERIFIED
Nano Banana 2 (Gemini 3.1 Flash Image) at a glance.
Google documents a 131,072-token context window. Input modalities: text + image. Output: text + image. Pricing status: Official paid API.
MODEL IDgemini-3.1-flash-image
CONTEXT WINDOW131,072tokens
MAX OUTPUT32,768
KNOWLEDGE CUTOFFNot published
STANDARD INPUT$0.50per million tokens: IMAGE output only, text output separate
STANDARD OUTPUT$60.00per million tokens: IMAGE output only, text output separate
CAPABILITY CONTRACT
Published model behavior.
text + image
Input modalities come from the cited official model documentation.
text + image
Output modality and output-limit claims remain separate so an undocumented token cap is not guessed.
PRICING STATUS
Official paid API.
$0.50 input · $60.00 output per million tokens: IMAGE output only, text output separate.
SXF preserves the provider-published native billing basis. Only calculator-eligible generative token models enter token-cost arithmetic; specialist units and input-only embeddings remain visible without forced conversion.
CAVEATS
What the source record does not assume.
01
Native API ID gemini-3.1-flash-image is different from gemini-nano-banana-2.1 already in the catalog.
02
Standard paid rates: text/image input $0.50 per million tokens; IMAGE output $60 per million tokens; text/thinking output $3 per million tokens.
03
Provider image estimates are $0.045 for 0.5K, $0.067 for 1K, $0.101 for 2K and $0.151 for 4K output; additional inputs and grounding cost extra.
04
Mixed image/text pricing is not a generic fixed token calculator rate.
EXPLORE
Keep the model in context.
OFFICIAL SOURCES
Verification links.
WHAT CHANGED
Nano Banana 2 (Gemini 3.1 Flash Image): what changed.
No post-baseline factual changes recorded for Nano Banana 2 (Gemini 3.1 Flash Image) since 2026-10-12.
VERIFIED BASELINE2026-10-12Current facts remain aligned with the SXF ledger.
VERIFIED CHANGE HISTORY
Nano Banana 2 (Gemini 3.1 Flash Image) verified history.
Nano Banana 2 (Gemini 3.1 Flash Image)
Baseline verified: 131,072 context · 32,768 max output · $0.50 input / $60.00 output per million tokens: IMAGE output only, text output separate
Official evidence ↗Append-only SXF ledger · 1 verified event · chain head 77b0ad167e15…
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