[Bug] Model context window stuck at 200k regardless of effort level configuration

Bug Description
using claude CLI in ghostty in a tumx session and it showing i am using claude opus 3.7 (1m) context | high for all effort levels regardless of what i change it too a stuck bug

Environment Info

• Platform: darwin
• Terminal: tmux
• Version: 2.1.114
• Feedback ID: 9f51acde-c51c-45f1-831f-00937d1a0f02

Errors

[{"error":"AxiosError: Request failed with status code 400\n    at CU (/$bunfs/root/src/entrypoints/cli.js:110:1194)\n    at <anonymous> (/$bunfs/root/src/entrypoints/cli.js:115:12744)\n    at emit (node:events:92:22)\n    at endReadableNT (internal:streams/readable:865:50)\n    at processTicksAndRejections (native:7:39)\n    at request (/$bunfs/root/src/entrypoints/cli.js:117:2467)\n    at async MlH (/$bunfs/root/src/entrypoints/cli.js:253:275865)\n    at async xE6 (/$bunfs/root/src/entrypoints/cli.js:406:3883)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-19T16:56:36.426Z"},{"error":"AxiosError: Request failed with status code 400\n    at CU (/$bunfs/root/src/entrypoints/cli.js:110:1194)\n    at <anonymous> (/$bunfs/root/src/entrypoints/cli.js:115:12744)\n    at emit (node:events:92:22)\n    at endReadableNT (internal:streams/readable:865:50)\n    at processTicksAndRejections (native:7:39)\n    at request (/$bunfs/root/src/entrypoints/cli.js:117:2467)\n    at async MlH (/$bunfs/root/src/entrypoints/cli.js:253:275865)\n    at async xE6 (/$bunfs/root/src/entrypoints/cli.js:406:3883)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-19T17:10:22.887Z"},{"error":"AxiosError: Request failed with status code 400\n    at CU (/$bunfs/root/src/entrypoints/cli.js:110:1194)\n    at <anonymous> (/$bunfs/root/src/entrypoints/cli.js:115:12744)\n    at emit (node:events:92:22)\n    at endReadableNT (internal:streams/readable:865:50)\n    at processTicksAndRejections (native:7:39)\n    at request (/$bunfs/root/src/entrypoints/cli.js:117:2467)\n    at async MlH (/$bunfs/root/src/entrypoints/cli.js:253:275865)\n    at async xE6 (/$bunfs/root/src/entrypoints/cli.js:406:3883)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-19T17:10:35.644Z"},{"error":"Error: Failed to delete keychain entry: security: SecKeychainSearchCopyNext: The specified item could not be found in the keychain.\n    at Jwq (/$bunfs/root/src/entrypoints/cli.js:253:283620)\n    at async Apq (/$bunfs/root/src/entrypoints/cli.js:406:898)\n    at async iE6 (/$bunfs/root/src/entrypoints/cli.js:406:796)\n    at async hq_ (/$bunfs/root/src/entrypoints/cli.js:2727:2084)\n    at async ZDH (/$bunfs/root/src/entrypoints/cli.js:2752:5698)\n    at async <anonymous> (/$bunfs/root/src/entrypoints/cli.js:2776:3358)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-19T19:00:18.887Z"}]