Has Nano Banana 2.5 been officially released?
No public Nano Banana 2.5 or Spicy Mayo model was listed in Google's official model directory as of September 10, 2026. The identity remains an X-sourced rumor.
NA
Google Nano Banana 2.5 (Rumored)
Also known as: Nano-Banana 2.5 / Spicy Mayo / spicy-mayo
Release date: 2026-10-10Views: 23
Parameters
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Context length
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Multilingual
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Reasoning ability
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Nano Banana 2.5 is the catalog label for a Google image-model rumor associated with the codename Spicy Mayo. X posts reported that a new model appeared in Image Arena and shared informal comparisons, but Google had not publicly confirmed the identity or any specifications as of September 10, 2026.
Data sourced primarily from official releases (GitHub, Hugging Face, papers), then benchmark leaderboards, then third-party evaluators. Learn about our data methodology
Nano Banana 2.5
Model basics
Reasoning traces
No data
Thinking modes
Thinking modes not supported
Context length
No data
Max output length
No data
Model type
Vision model
Modality (in / out)
No data
Release date
2026-10-10
Model file size
No data
MoE architecture
No
Total params / Active params
No data / Not applicable
Knowledge cutoff
No data
Nano Banana 2.5
Open source & experience
Code license
Proprietary
Weights license
Proprietary
GitHub repo
N/A
Hugging Face
N/A
Live demo
N/A
Nano Banana 2.5
Official resources
Paper
N/A
DataLearnerAI blog
N/A
Nano Banana 2.5
API details
API speed
No data
No public API pricing yet.
Nano Banana 2.5
Publisher
Google Deep Mind
View publisher details Google Nano Banana 2.5 (Rumored)
Model Overview
Rumored and unreleased
Nano Banana 2.5, associated in X discussions with the codename Spicy Mayo, is recorded here as a Google image-model rumor. The October 10, 2026 date shown by this record is only a catalog placeholder because no official release date was available.
What the X evidence says
On September 9, 2026, LuminaBench reported that a new Google Nano Banana model codenamed Spicy Mayo had appeared in Image Arena and speculated that it might be Nano Banana 2.5 rather than an update. Tim Jayas then shared an informal same-prompt comparison with Nano Banana 2, followed by a comparison with GPT-Image 2.5. These posts are discovery evidence and user observations, not a Google announcement, model card, or official benchmark.
Official evidence boundary
As of September 10, 2026, Google's official Gemini API model directory listed Nano Banana 2 as gemini-3.1-flash-image and did not list Nano Banana 2.5 or Spicy Mayo with a public model ID, documentation, pricing, release date, or model card. This record therefore remains explicitly labeled as a rumor.
Unknown fields
Parameter count, architecture, context window, output limits, API identifier, modalities, tools, license, pricing, and public benchmark results remain unknown. No values are copied from Nano Banana 2 or Nano Banana Pro.
Sources
- LuminaBench X post: Spicy Mayo and Image Arena rumor lead.
- Tim Jayas comparison post 1: Nano Banana 2 versus Nano Banana 2.5 (Spicy Mayo).
- Tim Jayas comparison post 2: informal comparison with GPT-Image 2.5.
- Google Gemini API model directory: official model-list cross-check.
Nano Banana 2.5
FAQ
What is Spicy Mayo?
Spicy Mayo is the codename used in X posts for a new Google image-model candidate reported to have appeared in Image Arena. Its relationship to Nano Banana 2.5 has not been confirmed by Google.
What are Nano Banana 2.5's specifications and price?
No verifiable public values are available for parameters, context, API access, pricing, or official benchmarks. This record intentionally leaves those fields unknown.
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