[Bug] Token usage rate higher with Sonnet/Haiku with Opus 4.7 vs Opus 4.6 full in agentic workflows

Bug Description
I'm having trouble understanding why my weekly and session burn-in times are increasing when I use a lot of Sonnet. Before, when I was using Opus 4.6, I only ran it in full-time mode. Now that I'm using Opus 4.7 and Sonnet+Haiku in some agents, the burn-in process is happening faster than before. What could be causing this?

Environment Info

• Platform: darwin
• Terminal: ghostty
• Version: 2.1.114
• Feedback ID: 370ddcda-6cf5-4eee-8548-7ee25a4ac07b

Errors

[{"error":"Error: NON-FATAL: Lock acquisition failed for /Users/marekkanas/.local/share/claude/versions/2.1.114 (expected in multi-process scenarios)\n    at sd_ (/$bunfs/root/src/entrypoints/cli.js:2751:2177)\n    at WH8 (/$bunfs/root/src/entrypoints/cli.js:2751:1257)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-18T19:07:42.724Z"},{"error":"Error: Request was aborted.\n    at makeRequest (/$bunfs/root/src/entrypoints/cli.js:50:3448)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-18T19:27:03.774Z"},{"error":"Error: Request was aborted.\n    at makeRequest (/$bunfs/root/src/entrypoints/cli.js:50:3448)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-18T21:19:21.926Z"},{"error":"Error: Request was aborted.\n    at makeRequest (/$bunfs/root/src/entrypoints/cli.js:50:3448)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-18T21:21:03.650Z"},{"error":"Error: Request was aborted.\n    at makeRequest (/$bunfs/root/src/entrypoints/cli.js:50:3448)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-18T21:49:08.442Z"}]