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Seed 1.6

Seed 1.6 is a sparse Mixture-of-Experts (MoE) model with 23B active parameters out of 230B total, a context window of 256K tokens, and three reasoning modes including adaptive chain-of-thought (CoT) that calibrates thinking depth to question complexity.

ReasoningTool UseImplicit Cachingtiered-cost
index.ts
import { streamText } from 'ai'
const result = streamText({
model: 'bytedance/seed-1.6',
prompt: 'Why is the sky blue?'
})

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Provider
Context
Latency
Throughput
Input
Output
Cache
Web Search
Per Query
Capabilities
ZDR
No Training
Release Date
ByteDance
256K
1.2s
74tps
$0.25/M
$2.00/M
Read:
$0.05/M
Write:
+1
09/01/2025