[Feature Request] Include 1M context window support for Claude Sonnet

Bug Description
I thought 1m context was included...only for opus, not sonnet??

Environment Info

• Platform: darwin
• Terminal: tmux
• Version: 2.1.119
• Feedback ID: 70921626-91fc-4fc5-8a6d-50d7a9c69c00

Errors

[{"error":"Error: NON-FATAL: Lock acquisition failed for /Users/rdavis/.local/share/claude/versions/2.1.119 (expected in multi-process scenarios)\n    at mH6 (/$bunfs/root/src/entrypoints/cli.js:2736:2177)\n    at E$8 (/$bunfs/root/src/entrypoints/cli.js:2736:1257)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-27T23:20:22.254Z"},{"error":"Error: 429 {\"type\":\"error\",\"error\":{\"type\":\"rate_limit_error\",\"message\":\"Extra usage is required for long context requests.\"},\"request_id\":\"req_011CaV8g9sL2BJCJAnbdE5eN\"}\n    at generate (/$bunfs/root/src/entrypoints/cli.js:11:55343)\n    at makeRequest (/$bunfs/root/src/entrypoints/cli.js:50:4943)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-27T23:20:24.295Z"}]