Seed 1.8

id: bytedance-seed/seed-1-8

family: seed

context: 256,000

modalities: text → text

release: 2025-12-28

reasoning tools vision structured temp open weights

Offerings

Provider	Input	Output	Context	Max out
Ofox volcengine/doubao-seed-1-8	$0.12/M	$0.29/M	256,000	64,000
Vercel AI Gateway bytedance/seed-1.8	$0.25/M	$2.00/M	256,000	64,000

These provider models look related but are not exact matches.

Provider	Input	Output	Context	Max out
ZenMux volcengine/doubao-seed-1.8	$0.11/M	$0.28/M	256,000	64,000
302.AI doubao-seed-1-8-251215	$0.11/M	$0.29/M	224,000	64,000
Requesty seed-1.8	$0.23/M	$1.80/M	256,000	256,000
DevPass (LLM Gateway) seed-1-8-251228	$0.25/M	$2.00/M	256,000	8,192
LLM Gateway bytedance/seed-1-8-251228	$0.25/M	$2.00/M	256,000	256,000