[BUG] Usage limit reached on Max 5x with low usage (4% weekly, 9% session)

Preflight Checklist

• [x] I have searched existing issues and this hasn't been reported yet
• [x] This is a single bug report (please file separate reports for different bugs)
• [x] I am using the latest version of Claude Code

What's Wrong?

Plan: Max 5x
Model: Sonnet 4.6 (also tried Opus 4.7)
OS: Windows
Claude Code version: Latest as of April 29, 2026 (cannot check exact version, blocked from terminal)

What's wrong:
Claude Code shows "Usage limit reached" and blocks all input,
making /bug, /compact, /clear impossible to run.

Settings > Usage shows:

• Current session: 9% used (resets in 1h 41min)
• Weekly all models: 4% used (resets Tue 7PM)
• Sonnet only: 2% used

I cannot type anything in the input box. Upgrade button shows.
Tried switching from Opus 4.7 to Sonnet 4.6 — same result.

What Should Happen?

Claude Code should accept input and execute commands normally, given that:

• Plan usage limits are far from exhausted (4% weekly, 9% session)
• Both 5-hour and weekly limits show plenty of capacity remaining
• The block prevents even basic recovery commands like /bug, /compact, /clear

Expected: input box accepts typing and commands execute normally,
OR a clear error message explaining which specific limit was hit.

Error Messages/Logs

Usage limit reached
[Upgrade button visible]

Steps to Reproduce

1. Open Claude Code in a project folder (in my case: classiccarsarena.com)
2. Use Sonnet 4.6 model with Medium thinking
3. Send several content-generation messages (~47,000 words editorial

output total across the session)

1. At some point during normal usage, the input box becomes blocked

with "Usage limit reached" error and "Upgrade" button

1. Open claude.ai/settings/usage in browser and observe:

• Plan: Max 5x
• Current session: 9% used
• Weekly all models: 4% used
• Sonnet only: 2% used
• Extra usage: OFF

1. Switching model from Opus 4.7 to Sonnet 4.6 does not unblock input
2. Cannot run /bug, /compact, /clear because input is fully blocked

Expected: with 4% weekly usage on Max 5x plan, Claude Code should not
be reporting "Usage limit reached".

Claude Model

Sonnet (default)

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

2.1.42 (Claude Code)

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

Windows Terminal

Additional Information

<img width="1115" height="149" alt="Image" src="https://github.com/user-attachments/assets/a0231d1b-f0c6-4978-808f-7566c9575f4d" />
<img width="594" height="279" alt="Image" src="https://github.com/user-attachments/assets/844b4eef-8a74-40c8-b878-065dba10f330" />