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Seed 2.1 Turbo

Faster ByteDance Seed 2.1 model for multimodal reasoning and latency-sensitive agent workflows

doubao-seed-2-1-turbo-260628
Type
Text
Quality
Not rated yet
Context window
256,000 tokens
Max output
256,000 tokens
Input price
$0.45 / 1M tokens
Output price
$2.23 / 1M tokens
Cache read
$0.089 / 1M tokens
Cache write
—
Released
Jun 23, 2026
Knowledge cutoff
—
Takes in
Text, Image, Video
Puts out
Text
Reasoning
Yes
Tool calling
Yes
Structured output
Yes
File attachments
Yes
Access
Paid
License
Proprietary
Rarity
Uncommon
Set number
930/1044
Open ByteDance docsWhere to run it 9Evolution 4/4Meet its creatureBattle Qwen3-Coder 30B-A3B Instruct

Weights aren’t public. Use is governed by ByteDance’s terms. Specs from models.dev, last changed Oct 19, 2026. Official source: www.volcengine.com.

How good is it?

Public leaderboard scores for Seed 2.1 Turbo, refreshed daily from Epoch AI and LMArena.

No public leaderboard lists Seed 2.1 Turbo yet. Epoch AI and LMArena cover most chat, image, and video models from the big labs; embeddings, speech, and small open models mostly go unrated.

Where to run it

9 providers sell Seed 2.1 Turbo through an API. Prices are per million tokens, cheapest first.

API providers

ProviderInputOutputContext
Volcengine Ark Coding PlanFreedoubao-seed-2.1-turboFreeFree256K
OfoxCheapest paidvolcengine/doubao-seed-2.1-turbo$0.35$1.77256K
Volcengine ArkOfficialdoubao-seed-2-1-turbo-260628$0.45$2.23256K
Kilo Gatewaybytedance-seed/seed-2-1-turbo$0.50$2.50262K
NanoGPTbytedance-seed/seed-2-1-turbo$0.50$2.50262K
OpenRouterbytedance-seed/seed-2-1-turbo$0.50$2.50262K
Vercel AI Gatewaybytedance/seed-2.1-turbo$0.50$2.50262K
Venice AIseed-2-1-turbo$0.63$3.13256K
EmpirioLabs AIseed-2-1-turbo$0.63$3.13256K

From models.dev and Hugging Face, checked daily. Resellers’ listings can lag behind their price pages, so confirm with the provider before you commit.

Face off

Current text models from other labs at a similar output price.

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