itpp-infrastructure — CHANGELOG

2026-08-06 — Fallback Chain Overhaul & Two-Key Strategy

Root cause: Aug 5 admin-ai budget cap + 4 dead fallback legs = $45 Anthropic burn in 10 hours
Rotated all 5 fallback provider keys (new keys for deepseek, google, xai, anthropic, openai)
Added F5: gpt-4.1-nano via OpenAI direct (independent infrastructure)
Fixed F3: grok-4.6 → grok-4.5 (grok-4.6 never existed — LiteLLM catalog ghost)
Documented two-key strategy: operational keys (admin-ai only) vs fallback keys (direct, daily-capped)
Added to operational chain: claude-haiku-4-5 (lightweight), grok-4.5 (auditor 2), deepseek-v4-flash (batch)
Synced Anita profile with identical fallback chain + provider keys
Admin-ai budget raised: $20 → $30/day
Updated: model-chain.md, operational-models.md