Today's AgentStack Daily covers a GPT-5.5 Codex reasoning-token regression, a Claude Code session and cache cross-contamination issue on shared hosts, and Mistral 1.5 going out the door. Transformers 5.13 adds Kimi K2.5 through K2.7 architecture support. The USAF releases a method for MoE fine-tuning on 12GB consumer GPUs. Cheyenne pulls Meta data center water discharge permits after contamination findings, and Interfaze open-sources a diffusion ASR adapter for DiffusionGemma.

Show notes: https://tobyonfitnesstech.com/podcasts/episode-80/