seed familyActive
Seed 2.1 Pro
Flagship ByteDance Seed 2.1 model for complex multimodal reasoning, coding, and agents
Context
256,000
Max output
256,000
Input / 1M
$0.89
Output / 1M
$4.45
Providers
1
01Profile
Profile
Released
2026-06-23
Last updated
2026-06-23
Knowledge cutoff
—
Weights
Closed
02Capabilities
Capabilities
Input
text · image · video
Output
text
Reasoning
Yes
Tool calling
Yes
Structured output
Yes
Attachments
Yes
Cache read
—
Cache write
—
03Pricing
Pricing across 1 providers
Per 1M tokens, USD. Sorted by input price. First-party row highlighted.
04History
Change history
1+ recent events since 2026-06-23
2026-08-26Addedvolcengineoffering→ new