Hello! Thanks for reaching out. Higher usage tiers (including Tier 5) are typically granted based on verified billing history and demonstrated need. Please make sure your organization is verified and share your expected peak throughput (tokens/min and requests/min) with Support (help.openai.com). We’ll review and let you know if we can raise your limits or if a different provisioning option (e.g., Scale Tier) is a better fit for load testing. In the meantime, ramp traffic gradually to avoid sudden spikes that might trigger rate limiting.
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