Avoid LLM downtime: single‑script quota tracking with smart switching

Many engineering and platform teams embedding LLMs encounter silent failures from per-key and per-model quotas, rate limits, and transient vendor outages; SREs, ML engineers and product teams at an estimated 200,000 companies building LLM features face user-facing degradation and potential SLA breaches when a single customer script exhausts capacity. These problems are acute for high-throughput scripts and multi-tenant products where one overloaded flow can affect revenue and trust. You could build a developer-facing control plane plus lightweight SDK that maintains unified, per-script quota accounting across multiple LLM providers, predicts depletion from real-time telemetry, and performs deterministic, stateful smart-switching to alternate models while preserving conversational context and token accounting. Offer policy-based routing (cost/latency/quality), per-tenant budgets, alerting and a dashboard, plus prompt adaptation layers so fallbacks work without manual rewriting, targeting sub-100 ms failover and measurable cost/latency tradeoffs. Expose telemetry to existing observability and billing systems so platform teams can both avoid downtime and quantify savings. This is timely: enterprises are increasingly adopting multi-provider strategies and investing in observability for AI, creating an addressable market of about $6.0B (200,000 companies × $30k ACV) with a market score of 88/100 and reasonable revenue potential. The product can stand out through true single-script quota unification, predictive depletion algorithms and deterministic, low-latency switching, but you should be candid about the hard parts: inconsistent provider telemetry, potential legal/data concerns around routing live prompts, and typical enterprise sales cycles of 6–12 months amid medium competition.