Seed 1.8 (251228) by LLM Gateway — Specs, Pricing & Capabilities | whichllm

Model ID seed-1-8-251228

Provider LLM Gateway

Family seed

Status -

Knowledge Cutoff -

Release Date 2025-12-18

Input Modalities text, image

Output Modalities text

Context Window 256000

Input Limit -

Output Limit 8192

Tool Calling Yes

Reasoning Yes

Structured Output Yes

Temperature Control Yes

Open Weights Yes

Input Cost / 1M tokens $0.25

Output Cost / 1M tokens $2.00

Reasoning Cost / 1M tokens -

Cache Read Cost / 1M tokens $0.05

Cache Write Cost / 1M tokens -