Opus 4.1 12× Reduced on Max Plan, Sonnet 4.5 Considered Lagging

Preflight Checklist

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

What's Wrong?

Since upgrading to Claude Code v2, I'm reaching my Opus weekly usage limit abnormally fast
with a Max 20x plan ($200/month). This never happened before v2.

Current behavior:

• Getting "Approaching Opus weekly limit" warning after only 1-2 days of normal usage
• Tuesday morning already at 86% of weekly Opus limit
• Usage seems to be consumed much faster than before v2

What Should Happen?

Expected behavior:

• With Max 20x plan (24-40 hours of Opus 4 per week), the limit should last the full week
  with normal development usage
• Should not reach 76% by Tuesday

Environment:

• Claude Code version: v2 (latest)
• Plan: Max 20x ($200/month)
• Model: Opus 4.1 (claude-opus-4-1-20250805)
• Platform: macOS
• Date first noticed: After Claude Code v2 release

Additional context:

• First time experiencing this issue since subscribing to Max plan
• Usage pattern hasn't changed compared to before v2
• Normal development work (Rails app, debugging, refactoring)

Steps to reproduce:

1. Have Max 20x plan
2. Use Claude Code v2 for normal development tasks
3. Check usage stats after 1-2 days
4. Notice abnormally high Opus consumption

Impact:
This significantly reduces the value of the Max plan if the Opus limit is consumed in 2
days instead of lasting the week.

Error Messages/Logs

Steps to Reproduce

1. Have a Max 20x plan ($200/month) with Claude Code v2
2. Start a normal development session with a Rails application
3. Perform typical development tasks:
   • Read several files (controllers, models, views)
   • Debug code issues
   • Make edits to multiple files
   • Run shell commands (git, rails, yarn build)
   • Use built-in tools (Read, Edit, Grep, Bash)
4. Check usage stats after 30 minutes of work
5. Observe abnormal consumption rate (10-16% per 30 minutes)

Specific session example that consumed 16% in 30 minutes:

• Debugged transcript display issue
• Read ~10 files (ERB views, Ruby models, JS controllers)
• Made 3-4 code edits
• Ran 5-6 bash commands
• Created 1 git commit
• Total messages exchanged: ~20-30

Expected consumption:

• Max 20x = 24-40 hours of Opus per week
• 30 minutes should consume ~0.2-0.3% (not 16%)

Actual consumption:

• Monday: Started at 0%
• Tuesday morning: 76%
• Tuesday 30 min later: 86%
• At this rate: 100% in 2-3 hours total

Environment details:

• Working directory: Rails 7 application
• File sizes: Standard Rails files (100-500 lines)
• No unusual operations or large file processing

Claude Model

Opus

Is this a regression?

Yes, this worked in a previous version

Last Working Version

No response

Claude Code Version

2.0.0

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Warp

Additional Information

CRITICAL UPDATE:

• Just jumped from 70% to 86% in 30 minutes of normal usage
• At this rate, the weekly limit will be exhausted in hours, not days
• This is clearly a bug, not normal consumption

Suspected issue:

• Possible token counting bug in v2
• May be counting tokens multiple times
• Could be related to new v2 features or context handling

Immediate impact:

• Makes Claude Code unusable for professional development
• Max plan becomes worthless if limit is consumed in hours

Severity: CRITICAL

• This is not just fast consumption, it's exponential/broken
• 16% in 30 minutes = potentially 100% in 2-3 hours

Request:
Please investigate urgently as this makes the tool unusable for paying Max plan
subscribers.