ByteDance
Seed 1.8 (251228) (ByteDance)
Multimodal reasoning model for visual analysis, planning, and tool use
Model facts
- Context window
- 256K tokens
- Maximum output
- 256K tokens
- Cheapest paid input
- $0.25 per 1M tokens
- Cheapest paid output
- $2 per 1M tokens
- Open weights
- no
- Providers
- 1
Capabilities and modalities
reasoning, tool calling, attachments, temperature control, text, image.
Observed price history
- 2026-08-24: $0.25 input / $2 output per 1M tokens
API providers
- LLM Gateway — model id bytedance/seed-1-8-251228; $0.25 input / $2 output per 1M tokens; provider documentation