Seed 1.6

A general-purpose model from ByteDance Seed with 262k token context window, superseded by the Seed-2.0 family released in 2026.

Strengths

Handles a broad range of tasks across text understanding, generation, and reasoning with a large context window for processing long documents.

Best for

General text tasks where you need a capable all-rounder; use Seed 1.6 Flash for latency-sensitive workloads, or step up to Seed-2.0 models for specialized or newer capabilities.

Limitations

An earlier release now replaced by newer Seed-2.0 variants that offer better performance, specialized capabilities (code, lightweight inference), or efficiency improvements.