This week was dominated by cost compression and gateway consolidation. Claude Opus 5.5 dropped with a meaningful price cut and no code changes required, while Vercel's AI Gateway absorbed four new models in a single cycle—GLM-5.3 Flash, DeepSeek V4.1 Flash, Qwen 3.8 Flash, and Grok 4.7. If you've been deferring long-context or multi-agent work on cost grounds, the calculus shifted this week. Claude Opus 5.5 cuts costs 40%, matches frontier performance Opus 5.5 hits Fable 5.1 b...