ByteDance: Doubao-lite-128k API

A cost-effective, high-throughput model featuring a 128k context window. Built on a sparse MoE architecture, it is optimized for high-concurrency tasks requiring long-range dependencies, such as multi-document summarization and extended chat histories.

Frequently Asked Questions

What is the context window of Doubao-lite-128k?

Doubao-lite-128k supports a context window of up to 131,072 tokens.

Does Doubao-lite-128k support function calling?

Yes. Doubao-lite-128k supports tool / function calling.

What is the knowledge cutoff of Doubao-lite-128k?

The knowledge cutoff of Doubao-lite-128k is 2025-08-31.