ByteDance
Seed 1.8
ByteDance Seed model for multimodal reasoning, long-context analysis, and agent workflows
Model facts
- Context window
- 256K tokens
- Maximum output
- 64K tokens
- Cheapest paid input
- $0.12 per 1M tokens
- Cheapest paid output
- $0.29 per 1M tokens
- Open weights
- no
- Providers
- 4
Capabilities and modalities
reasoning, tool calling, structured output, attachments, temperature control, text, image.
Observed price history
- 2026-08-24: $0.12 input / $0.29 output per 1M tokens
API providers
- Ofox — model id volcengine/doubao-seed-1-8; $0.12 input / $0.29 output per 1M tokens; provider documentation
- Volcengine Ark — model id doubao-seed-1-8-251228; $0.119 input / $1.19 output per 1M tokens; provider documentation
- Requesty — model id seed-1.8; $0.25 input / $2 output per 1M tokens; provider documentation
- Vercel AI Gateway — model id bytedance/seed-1.8; $0.25 input / $2 output per 1M tokens; provider documentation