Question About Ephemeral Key TTL in Realtime API

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Hi everyone,

Has anyone experimented with using the ephemeral key on the client side? I was prototyping a solution and noticed something concerning.

The Realtime API documentation states:

A new Realtime session configuration, with an ephemeral key. Default TTL for keys is one minute.

However, in practice, I found that the expires_at value was set for 2 hours later instead of the documented 60 seconds. This discrepancy is a bit alarming and seems like it could pose a security issue.

I’m curious—has anyone else encountered this? If so, how have you addressed it?

Additionally, could someone from @openai take a look and clarify whether this behavior is expected or a bug?

Thanks in advance for your insights!

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You are right, the expires_at value is set for 2 hours later

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Bump +1000
Same issue for weeks with no idea how to solve. Docs say its valid for 1minute only! Not 2hrs as calculated and seen

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Hi, could you please let me know if your issue has been resolved? It would be really helpful for me.

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Hi, could you please let me know if your issue has been resolved for ephemeral key TTL? It would be really helpful for me.

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It is the expires_at which is bugged, the ephemeral token will not be usable after about 5 min