Anthropic extended Fab 5’s metered‑billing deadline – how are you weighing it against GPT‑5.6 Sol and Grok 4.5 in real workflows?

Anthropic has just extended the date when Claude Fab 5 fully moves over to metered token billing for consumer subscribers (the latest in‑app notice I’m seeing says July 19, after a previous extension). In parallel, public pricing info from Anthropic and trackers like BenchLM still put Fab 5 at about 10 per million input tokens and 50 per million output tokens, both on API and for the new consumer credit packs. From my own workflow, this shift toward credit packs creates a lot more friction than the flat sub