[Bug] 1M context window incorrectly shown as extra billable usage on Max plan

Bug Description
⏺ Based on the research:

1M context is supposed to be included in your Max plan. This appears to be a known regression bug.

• March 13: Anthropic announced 1M context included by default for Max/Team/Enterprise plans
• March 20: Email confirmation sent — no extra usage required
• Late March (~27-28): A regression in Claude Code's model selector started incorrectly showing 1M context as "billed as extra usage"

This is a display/billing bug, not an intentional change. You should not be charged extra for 1M context on the $200/month Max plan.

I'd recommend:

1. Run /feedback in Claude Code and report the issue with a screenshot
2. Reference GitHub issues #34790 and #40223 which track this regression
3. Contact Anthropic support if it's actively blocking your work

Environment Info

• Platform: darwin
• Terminal: Apple_Terminal
• Version: 2.1.90
• Feedback ID: bebf0cd2-1bc7-48ba-b714-aee0434ca73e

Errors

[{"error":"Error: 429 {\"type\":\"error\",\"error\":{\"type\":\"rate_limit_error\",\"message\":\"Extra usage is required for long context requests.\"},\"request_id\":\"req_011CZf1NmsmiSPZ7AifSmAwx\"}\n    at generate (/$bunfs/root/src/entrypoints/cli.js:11:51872)\n    at makeRequest (/$bunfs/root/src/entrypoints/cli.js:50:5435)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-02T13:16:09.730Z"}]