Claude Code: Missing Opus Model Option Despite Max Plan Access

Bug Description
The /model command only gives me option to use Sonnet not Opus 4.1 Says /upgrade to Max plan. BUT I am on a Max plan and logged in as such. The /status and /cost confirm that.

Environment Info

• Platform: win32
• Terminal: WarpTerminal
• Version: 1.0.81
• Feedback ID:

Errors

[{"error":"AxiosError: Request failed with status code 403\n    at VN (file:///C:/Users/simu/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:692:1077)\n    at Unzip.V0 (file:///C:/Users/simu/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:693:9955)\n    at Unzip.emit (node:events:530:35)\n    at Unzip.emit (node:domain:489:12)\n    at endReadableNT (node:internal/streams/readable:1698:12)\n    at process.processTicksAndRejections (node:internal/process/task_queues:90:21)\n    at nB1.request (file:///C:/Users/simu/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:695:2088)\n    at process.processTicksAndRejections (node:internal/process/task_queues:105:5)\n    at async G81 (file:///C:/Users/simu/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:751:39476)\n    at async Object.call (file:///C:/Users/simu/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:3361:5093)","timestamp":"2025-08-14T20:50:56.082Z"},{"error":"AxiosError: Request failed with status code 403\n    at VN (file:///C:/Users/simu/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:692:1077)\n    at Unzip.V0 (file:///C:/Users/simu/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:693:9955)\n    at Unzip.emit (node:events:530:35)\n    at Unzip.emit (node:domain:489:12)\n    at endReadableNT (node:internal/streams/readable:1698:12)\n    at process.processTicksAndRejections (node:internal/process/task_queues:90:21)\n    at nB1.request (file:///C:/Users/simu/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:695:2088)\n    at process.processTicksAndRejections (node:internal/process/task_queues:105:5)\n    at async X_A (file:///C:/Users/simu/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:696:41364)\n    at async Promise.all (index 1)\n    at async file:///C:/Users/simu/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:2450:10339","timestamp":"2025-08-14T20:51:18.413Z"},{"error":"AxiosError: Request failed with status code 403\n    at VN (file:///C:/Users/simu/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:692:1077)\n    at Unzip.V0 (file:///C:/Users/simu/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:693:9955)\n    at Unzip.emit (node:events:530:35)\n    at Unzip.emit (node:domain:489:12)\n    at endReadableNT (node:internal/streams/readable:1698:12)\n    at process.processTicksAndRejections (node:internal/process/task_queues:90:21)\n    at nB1.request (file:///C:/Users/simu/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:695:2088)\n    at process.processTicksAndRejections (node:internal/process/task_queues:105:5)\n    at async pz8 (file:///C:/Users/simu/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:2395:470)\n    at async Promise.all (index 0)\n    at async file:///C:/Users/simu/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:2381:19497","timestamp":"2025-08-14T20:53:35.803Z"}]