Free Quotas Turn You Into a Reviewer: A Workload-Fit Field Guide

Free quotas can be an attractive option for logistics startups, but they come with hidden risks that can undermine the reliability of your customer-facing agent. One of the key issues is the lack of Service Level Objectives (SLOs) when using shared capacity. If your workflow requires a 500ms response time, a free endpoint is not the ideal foundation, as it may experience p95 spikes during bursts.

Another red flag is the potential for expensive failures. When using a shared host, silent refusals, dropped tool calls, or incorrect numbers can occur probabilistically, catching you off guard. Additionally, prompts, logs, and tool output may be sent to a host you don't control, posing security concerns.

Bursty demand can also be problematic. While average quota burn may appear calm over a day, real demand can arrive in minutes, colliding with shared limits and causing issues. Stateful work is another consideration, as free servers often restart, causing memory, caches, and sessions to vanish. If your agent relies on a warm cache, it's best to host it permanently.

Finally, free tiers typically lack deep observability, meaning you won't have access to support contracts or comprehensive debugging tools if the host fails. To evaluate these factors, follow a six-flag red flag scoring system and conduct a five-minute probe to measure availability, latency, and error rate under a small burst. This probe can help you separate the model from the host and ensure the foundation is solid before integrating a free endpoint into your agent.