---
name: "tech-cloudflare-ai-gateway-transparent"
title: "AI Gateway is transparent on model ids"
description: "Cloudflare AI Gateway does not validate model names; upstream does"
type: "tech"
category: "cloudflare"
tags: ["tech", "cloudflare", "llm"]
related: ["[[project-anyrouter]]", "[[tech-llm-gateway-quota-as-retryable]]"]
sources: ["https://developers.cloudflare.com/ai-gateway/"]
---
AI Gateway routes by provider/prefix and forwards model strings. "Invalid model ID" is usually upstream or unknown provider prefix.

Custom providers: base URL + slug; model path appended. Related: [[project-anyrouter]], [[tech-llm-gateway-quota-as-retryable]].