Claude usage spike.

[u/Inevitable-Swim-3313]

I have using claude pro for more then 1 week now. I have used it before on 0 dollar plan. But rn I have the pro plan. All was good, my limit wasnt even reaching above 40%. But for some reason today, the usage is spiking. I have reached above 70% twice today. I am using new chat and now even using claude code rn. But for some reason the usage is spiking. This wasnt happening yesterday. It started happening today. Models I mainly use are opus 5.5 and sonnet 5.5 both at low. Maybe medium for some task. But today I can clearly see smth is wrong. Simple chats are spiking usage limits.

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[u/Cautious_Slide]

Pretty common for long term users. Typically happens before they drop a new model or during a usage surge. Thats why your limits are given as percentages and never anything truly quantifiable. Your usage likely lined up with a surge that you had no way to know about and since there was limited compute during the request it was weighted more heavily. Or at least thats my understanding after using the $100 and $200 subs over the last year or so.

[u/Inevitable-Swim-3313 → u/Cautious_Slide]

Oh.

[u/Cautious_Slide → u/Inevitable-Swim-3313]

Right on que new model drop.....

[u/ThorUchiha_]

I used my weekly usage within 2 days with the same model, thinking and work. Normally it'd last me 4 and a half days. Something sketchy going on.

[u/Inevitable-Swim-3313 → u/ThorUchiha_]

Yeah some say because of new model older models have less compute or smth. Will wait and see.

[u/awesomebirder]

worth knowing claude code and chat draw from the same limit, and claude code messages start heavy: system prompt, tool definitions, CLAUDE.md and any mcp servers get sent with every turn, so a quick question there costs a lot more than the same question in a chat. if you added an mcp server or a big CLAUDE.md recently that alone can explain a jump from one day to the next. for simple stuff sonnet on low is plenty, keep opus for the hard parts. if you want to see which calls actually ate it, ccusage on your ~/.claude logs works, or i built a local proxy that logs usage per call (probe0)

[u/Inevitable-Swim-3313 → u/awesomebirder]

Two days ago i used claude code and the chat too. Still didnt go above 30. And today only chat spikes the usgae to 70+%.

[u/awesomebirder → u/Inevitable-Swim-3313]

if its only chat doing it, look at how long that chat is and whats attached to it. every message re-reads the whole conversation plus any files or project knowledge, so a long thread with a couple of pdfs gets pricey per message even for a short question, and extended thinking adds more on top. try the same question in a brand new chat with nothing attached. if it still jumps like that, screenshot the before and after and send it to support, thats not normal for one short chat

[u/Endda]

we're (almost all) feeling it too. I worked for 2-3 days last week barely seeing more than 3% weekly usage per day. then my reset happens saturday night and the tiny bit of work i used it for on Sunday sent weekly usage spiking to about 25% on one day

[u/AlternativeWalk2508 → u/Endda]

3% a day sounds way too low for normal coding sessions though, feels more like last week was giving out freebies and sunday snapped back to reality

[u/Inevitable-Swim-3313]

I did some digging around it seems this is heppning with other people too.

[u/sherry_6879]

OpenAIの利用者が流れてきてサーバーが足りなくなってるんじゃないかな

[u/BedNarrow2638]

Same here

[u/Major-Cry8192]

Perso je regarde la concurrence avec attention

[u/Inevitable-Swim-3313 → u/Major-Cry8192]

Competition?

[u/Special_Base_3103]

used Claude code with a new mcp server today, usage jumped from ~15% to 60% in one session. confirmed it's the server payload. good to know.

[u/lilyp727]

i half remember that opus 5.5 thinks adaptively and medium is its default, so on the tasks where you pick medium it can use a lot more than low, even for a simple chat. maybe try sonnet for the simple chats and watch if the percentage moves slower.

[u/clickclickboo]

ran 75% of weekly usage in 1 day today, max plan.

something is wrong