Unverified50% confidenceDecision RuleExact time
When setting the default client, you must also set the default API to "chat_completions", otherwise the SDK still sends requests to /v1/responses and returns 404.
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
10/17/2026
First Seen
Valid until: 1/15/2027
Sources
Related Entities
Related Claims
UnverifiedSending a Responses request to a gateway that only supports Chat Completions returns a NotFoundError (HTTP 404).67% similarUnverifiedHTTP状态码403表示服务端已识别到资源存在但拒绝访问，404表示路由层面找不到对应资源60% similarUnverified配置第三方API的请求地址结尾不应带斜杠，否则拼接API路径时会产生双斜杠导致部分API网关返回404等错误59% similarUnverifiedDuring this outage, accessing chat.openai.com often still worked normally, making switching to the web client a temporary workaround for the client-side failure.59% similarUnverifiedConversational tools such as ChatGPT run on cloud servers, communicate via HTTP APIs, cannot access the local file system or execute system commands, and their requests are stateless.59% similar
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