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Seed 1.8 (251228)

ByteDance Seed 1.8 advanced vision model released December 28, 2025 with enhanced capabilities

seed-1-8-251228
STABLEGet startedView uptime
256,000 context
Starting at $0.25/M input tokens
Starting at $2.00/M output tokens
Streaming
Vision
Tools
Reasoning
JSON Output
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ByteDance
Context: 256k
Input
$0.25
/M tokens
Cached
$0.05
/M tokens
Output
$2
/M tokens
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