What this error usually means
Diagnose Google unauthorized (401) by checking balance, Base URL, model permission, region/IP, and visible models before the next fix.
- Provider: Google
- Error type: unauthorized
- Status code: 401
Key error diagnosis
Google | unauthorized
Diagnose Google unauthorized (401) by checking balance, Base URL, model permission, region/IP, and visible models before the next fix.
Provider
Google
global provider route
Error type
unauthorized
high
Status code
401
unauthorized
Sample models
32
Gemini 2.0 Flash · Gemini 2.0 Flash Lite · Gemini 2.5 Flash
Error route summary
Error type
unauthorized
high
Provider
Google
Status code
401
Read-only check. Detection data burns after 5 minutes.
Read-only check. Detection data burns after 5 minutes.
How to prove it during checking
Read-only check. Detection data burns after 5 minutes.
- Run read-only identity first: confirm whether the key really belongs to Google, not just a compatible protocol.
- Then list models or run a lightweight probe: check whether models like Gemini 2.0 Flash · Gemini 2.0 Flash Lite · Gemini 2.5 Flash are visible and return stable evidence.
- Finally record 401, error body, latency, egress IP, and reproducibility to separate balance, permission, route, or upstream issues.
Next action
unauthorized should not only show failed. The console should return the next move: refill balance, change Base URL, switch model, add permission, change egress IP, hold listing, or monitor.
- Read-only check. Detection data burns after 5 minutes.
- global provider route
- Gemini 2.0 Flash · Gemini 2.0 Flash Lite · Gemini 2.5 Flash
Open key check
Read-only check. Detection data burns after 5 minutes.
Open providers
Google
Open models
Gemini 2.0 Flash · Gemini 2.0 Flash Lite · Gemini 2.5 Flash
Return to Gemini 3.1 Pro Preview
After clarifying this error, jump back to the newest model and decide whether the failure changes how far you keep following it.