Controls for how a thread will be truncated prior to the run. Use this to control the intial context window of the run.

interface TruncationStrategy {
    last_messages?: null | number;
    type: "auto" | "last_messages";
}

Properties

last_messages?: null | number

The number of most recent messages from the thread when constructing the context for the run.

type: "auto" | "last_messages"

The truncation strategy to use for the thread. The default is auto. If set to last_messages, the thread will be truncated to the n most recent messages in the thread. When set to auto, messages in the middle of the thread will be dropped to fit the context length of the model, max_prompt_tokens.

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