Slow When Invoking Large Language Model API in China? A Practical Guide to 4-Step Speed Testing and Locating Cross-Border Latency
Author’s note: Use curl and the SDK to time DNS, TLS, first token, and total latency, then run through a 4-step method to figure out whether a slow Large Language Model API call from mainland China is bottlenecked by the “cross-border link” or by “model inference.” “Why is this API so slow?” That’s the line…
