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ByteDance Seed: Seed 1.6

bytedance-seed/seed-1.6

Released Dec 23, 2025262,144 context$0.25/M input tokens$2/M output tokens

Seed 1.6 is a general-purpose model released by the ByteDance Seed team. It incorporates multimodal capabilities and adaptive deep thinking with a 256K context window.

Recent activity on Seed 1.6

Total usage per day on OpenRouter

Prompt
13.3M
Reasoning
1.57M
Completion
964K

Prompt tokens measure input size. Reasoning tokens show internal thinking before a response. Completion tokens reflect total output length.