OpenAI Codex pricing change detected: typical $20 → $100/mo, floor $0 → $8/mo, model flat → hybrid

Detected automatically from the vendor pricing page. Individual plans are Free, Go for $8/month, Plus for $20/month, Pro from $100/month; Business is $20/user/month billed annually or $25/user/month monthly, and Enterprise requires contacting sales. Pending human verification (needs_review).