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I get 400 bad_request when setting tier. What's wrong?

TroubleshootingUpdated

tier accepts only these values: auto, flash, max, heavy.

Common mistakes#

  • Using a Model API id like supercosmos-max. On the Agent API, send "tier": "max".
  • Capital letters ("Max") or extra spaces.
  • Line Code names (line-code, ultra): Line Code was retired on Nov 1, 2026.

Fix the value, or leave tier out to get auto.

Learn more#

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