7-stage pipeline from API call to token generation, handling millions of requests per minute.
Entry point receiving chat completion requests from client SDKs.
Validates API keys, checks organization limits and permissions.
Enforces TPM and RPM limits per key, per org, per model, per tier.
Determines which GPU cluster to route based on model and load.
Estimates input tokens for billing before inference begins.
Queues requests for GPU execution with priority ordering.
Thousands of GPUs running model inference, generating tokens.
Sends tokens back via SSE as they're generated.
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