No capacity available

[kplgr]

I have moved this to an issue as there is zero response from the developers

Issue link: #20008

I keep getting these errors, eg
✕ [API Error: No capacity available for model gemini-3-flash-preview on the server]

This has been going on ALL DAY today. For every model.

My question is , whose servers are out of capacity exactly? Definitely not google's...

By the way, I have used OAuth with a Google AI Pro-enabled account.

[bronyhomie365]

Same here - any ETA on the fix please?

[gustavofrdev]

same here. I Pay for something that is not avaible.

[Canahmetozguven]

same here

[jkuk06]

Same here. With enterprise account.

[yurifilgueira]

Same here.

[mrowlinson]

Yet another. I'm assuming this is somehow related to the launch of 3.1 Pro but it's still ridiculous. I pay for this product and Google is routing me to years old models.

[salmanbappi]

Same here

[wpted]

same here

[KyunghyunLee]

Same here. My account has plenty of usage remaining, but I am getting this message continuously.

[kiyoaki]

Experiencing the same issue. gemini-3-flash-preview returns 429 MODEL_CAPACITY_EXHAUSTED intermittently.

Environment:

• Gemini CLI v0.29.5, Windows 11
• Google AI Ultra for Business (OAuth)

Key observation:
When using -m gemini-3.1-pro-preview, the main model prompt succeeds, but internal tool calls fail with 429. The error message references gemini-3-flash-preview, suggesting that tool-call requests are routed to flash regardless of the model I specified. This makes the entire session unusable even when only flash capacity is exhausted on the server side.

/stats output at time of error:

• gemini-3-flash-preview: 75.4% remaining
• gemini-3.1-pro-preview: 93.2% remaining

So this appears to be a server-side capacity issue, not a per-user quota limit.

It would be helpful if the CLI could fall back to an alternative model for internal tool calls when the primary one hits capacity limits.

[BrianInAz]

It's the middle of the night here and still getting : No capacity available for model gemini-3-pro-preview on the server?!?!

[zhangtaile]

same here

[PS-Wizard]

+1 no capacity available for gemini-3-pro-preview on the server

[partyalarm]

After a while, it changed to the following error.
#17643
#18206

[manas-17045]

+1 No capacity available even for gemini-3-flash-preview

[ahmedfaaid]

+1 . To be honest it doesn't matter what time of day, there is never capacity for any gemini 3 model and even sometimes gemini 2.5 pro.

[leeeezx]

same

[robertvb]

it has been the whole weekend... How can it be still broken?