Nano Banana 2 may be unavailable on the route you are using, but one failed image does not prove a Google-wide outage. Nano Banana 2 is Gemini 3.1 Flash Image, and it appears in the Gemini app, Google AI Studio and the Gemini API, Vertex AI, Flow, other embedded Google products, and third-party tools. Those surfaces do not share one universal public health signal.
Start with the failed surface. For Google AI Studio or the Gemini API, open the first-party Google AI Studio status page and read the current banner and incident state. For Vertex AI, check Google Cloud Service Health. For a Gemini app failure, preserve the exact message and use the app's support path. For a third-party tool, check that provider first.
Then record the time, time zone, exact safe error text, model or resolution when known, and request ID when available. That evidence—not an old search snippet, a forum post, or a static “operational” badge—lets you decide whether the incident is confirmed, probably scoped, or still local or unknown.
Is Nano Banana 2 down right now?
There is no honest permanent yes-or-no answer inside an article. The answer changes by time and surface, and even a first-party green dashboard has a defined scope.
Use this order:
- Identify where the failure occurred.
- Open the first-party health owner for that surface.
- Read the exact signal instead of paraphrasing it as “not working.”
- Run one minimal same-surface check.
- Compare another official route or model only if that comparison isolates scope.
Google's image-generation documentation identifies Nano Banana 2 as gemini-3.1-flash-image. Google's launch material also describes multiple product routes, including the Gemini app, Search, AI Studio/API, Vertex AI, and Flow. That distribution is why “the website works for me” and “the API fails for me” can both be true at the same time.
Choose the status owner by surface
| Failed surface | First-party owner or support route | Strong evidence | What it does not prove |
|---|---|---|---|
| Gemini app | In-app state and Gemini Apps feedback | The same safe request fails in a fresh chat on the same account, with the exact app message recorded | That the Gemini API, Vertex AI, or every app account is down |
| Google AI Studio / Gemini API | Google AI Studio Status plus the exact API response | An open incident naming the affected component, or matching transient failures across controlled API requests | That the consumer app, Vertex AI, Flow, or a wrapper is affected |
| Vertex AI | Google Cloud Service Health plus Vertex error details and support | A matching regional, project, or model signal on Vertex AI | That AI Studio or the consumer Gemini app is affected |
| Flow, Search, or another Google product | That product's own UI, support, and incident route | The failure reproduces inside the same product and step | That all Nano Banana 2 surfaces share the failure |
| Third-party wrapper or provider | Provider status, logs, and support; then one allowed official-route comparison | A provider-only failure, or a timestamped upstream error that matches first-party evidence | A Google-wide outage without first-party confirmation |
This table is a routing tool, not a promise that each owner exposes every model-level issue immediately. A new incident can exist before a public entry appears. The important discipline is to state what your evidence covers and what remains unknown.
Read the signal before deciding the scope
“It failed” is not a diagnostic signal. The HTTP class, app message, output behavior, and affected route point to different owners.
Google's Gemini API troubleshooting guide draws these useful boundaries:
| Signal | What to test first | Is it outage evidence? | Next action |
|---|---|---|---|
400 INVALID_ARGUMENT | Request fields, API version, model name, and payload shape | No | Correct the request; do not retry it unchanged |
400 FAILED_PRECONDITION | Access or billing prerequisites, including documented country/free-tier conditions | No | Fix the prerequisite before sending more traffic |
403 PERMISSION_DENIED | API key, project, authentication, and route access | No | Correct access; do not retry unchanged |
404 NOT_FOUND | Model, file, resource, parameter, or API version | No | Fix the missing or stale resource |
429 RESOURCE_EXHAUSTED | Read the full message for the Gemini API's rate, token, daily, or spend limit | Not by itself | Reduce pressure and inspect the current rate limits before retrying |
500 INTERNAL | Status, request context, and whether a minimal request also fails | Possible transient signal | Use a bounded retry policy; report if persistent |
503 UNAVAILABLE | Current status, matching model/route failures, and retry policy | Possible availability signal | Use bounded backoff; escalate a persistent confirmed branch |
504 DEADLINE_EXCEEDED | Caller timeout, request size, and processing time | Not necessarily | Adjust the deadline or request shape when appropriate |
Do not import the Gemini Developer API table into Vertex AI. For a Vertex failure, use Google Cloud Service Health for incident scope, preserve the exact message plus project and region, and route a persistent project- or region-specific failure to Cloud Support. A 429 description from one surface is not a universal contract for another.
Output quality is also a signal. A request that returns an image with corrupt or unexpectedly degraded output is different from a request that never starts. Record the model, resolution, surface, and timestamp, then look for an incident that names the same scope. Do not reduce every quality complaint to “the servers are down.”
Run the two-check incident test
The goal is not to prove global uptime. It is to determine the narrowest scope supported by the evidence while creating as little extra traffic as possible.
Check 1: repeat one minimal request on the same surface
Use a non-sensitive baseline such as a request for one simple geometric object on a plain background. Keep the same account or project, surface, model, and resolution. Change only what is required to remove private data and unnecessary prompt complexity.
Record:
- timestamp and time zone;
- surface and product route;
- model ID or visible model name;
- resolution or relevant output setting;
- exact safe error code and message;
- request ID, if the surface returns one;
- whether the minimal request succeeded, failed, or returned a broken output.
One failure is useful evidence for that exact route. It is not a percentage, a global incident count, or proof about another account.
Check 2: make one bounded comparison only when it answers a question
Choose a comparison that changes one scope axis:
- another official model on the same API project can test whether the failure is model-specific;
- the same model at another supported resolution can test whether the issue is resolution-specific;
- an official direct route can test whether a third-party wrapper owns the failure;
- the same minimal request in a fresh Gemini app chat can test whether conversation state owns an app-only symptom.
Do not rotate API keys, projects, accounts, or regions to evade limits. Do not use a VPN or proxy to manufacture a different availability result. Do not turn the check into an unbounded loop of potentially billable requests.
Classify the incident with a confidence ladder
After the two checks, use the strongest label the evidence supports—no stronger.
Confirmed incident
The current first-party owner names the affected component, model, feature, or surface, and the incident is still open. Your matching error and timestamp support the same scope.
Action: pause avoidable traffic, follow the incident owner, and use only the retry behavior appropriate to the error class. Do not infer that unrelated surfaces are also down.
Probable scoped incident
Several controlled checks on the same official route show matching transient failures, but the first-party status owner has not posted an incident yet. A model, resolution, project class, or region may be affected more narrowly than the whole service.
Action: preserve evidence, reduce retry pressure, and report through the route owner. Phrase the conclusion as probable and scoped, not “Nano Banana 2 is globally down.”
Local or unknown
One account, project, request, app session, or provider fails while a controlled comparison works—or there is not enough corroboration to classify the scope.
Action: move to the matching troubleshooting branch. Local or unknown does not mean the user caused the problem; it means the available evidence does not support a broad incident claim.
Common results and what they mean
| What you observe | Most defensible conclusion | Best next owner |
|---|---|---|
| AI Studio Status names an open Nano Banana incident and your API error matches its scope | Confirmed API/AI Studio incident | Official incident entry |
| Status is green, but only your Gemini app account returns an app message | App-scoped or unknown; API health does not clear the app route | Gemini app feedback and broad troubleshooting |
| A wrapper fails while the same minimal request works on an official direct route | Wrapper/provider or integration branch | Wrapper logs and support |
429 RESOURCE_EXHAUSTED appears with a project limit message | Quota/rate/spend branch, not automatic outage proof | Current project limit owner and 429 guide |
Repeated 503 UNAVAILABLE appears on controlled API requests | Probable transient API/model issue until official scope confirms it | Status owner, then the persistent-503 guide |
| Images return but only one resolution is visibly broken | Resolution/model-scoped quality issue is plausible | Status history, model documentation, and support |
A resolved incident in status history can explain an old screenshot, but it does not describe current health. Likewise, a search snippet can quote the detected phase of a historical incident even after the source page marks it resolved. Open the source and read its current state.
When to stop retrying
Retries are not a universal status check.
- Stop unchanged requests on 400, 403, and 404. Fix the request, permission, or resource first.
- Treat 429 according to the exact message and current limit context. Key rotation does not diagnose the owning limit.
- Use exponential backoff and jitter only for transient classes, with a bounded attempt and time budget.
- Stop if the test would expose private images, sensitive prompts, API keys, personal data, or a full production request body.
- Stop changing multiple variables at once. A result without a controlled comparison cannot isolate scope.
- Stop using community volume or a third-party badge as the final incident authority.
If you have a confirmed, persistent 503 UNAVAILABLE or overloaded branch, continue with the Nano Banana 2 503 troubleshooting guide. That owner is where implementation details such as retry architecture belong. If status is not confirmed and the failure points to app session, prompt policy, account route, API project, or wrapper mapping, use the route-first Nano Banana troubleshooting guide.
Save an evidence packet before reporting
A useful incident report is small, timestamped, and safe to share:
- failed surface and product route;
- timestamp and time zone;
- model ID or visible model name;
- resolution or relevant feature;
- exact redacted error message and request ID;
- result of one minimal same-surface check;
- result of one bounded comparison, if performed;
- first-party status owner and the state shown at that time;
- screenshot or log with keys, personal media, account data, and sensitive prompt text removed.
For the Gemini app, Google's feedback instructions explain that conversation data and files may be attached when feedback is sent. Review the material before submitting it. For AI Studio or the Gemini API, preserve the request ID and compare the error with the official status and troubleshooting docs. For Vertex AI, use Cloud Service Health and Cloud Support. For a wrapper, ask the provider for the timestamped upstream response rather than accepting a generic “model failed” label.
The reliable answer is scoped, not binary
To decide whether Nano Banana 2 is down, identify the surface, read its first-party status owner, preserve the exact signal, and run one controlled same-surface check. Use a second comparison only when it isolates model, resolution, project, app-session, or provider scope.
Call it a confirmed incident only when first-party evidence names the active scope. Call it probable when controlled transient failures match but official confirmation is missing. Otherwise keep the result local or unknown and follow the appropriate troubleshooting owner. That language is less dramatic than a universal green or red badge, but it is the only way to give a status answer that remains accurate after the page is published.
