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Doubao Seed 1.6 Vision

doubaodoubao/doubao-seed-1-6-vision

API guide

Chat completion

cURL
curl https://api.therouter.ai/v1/chat/completions \
  -H "Authorization: Bearer $THEROUTER_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"doubao/doubao-seed-1-6-vision","messages":[{"role":"user","content":[{"type":"text","text":"描述这张图片"},{"type":"image_url","image_url":{"url":"https://therouter.ai/assets/vision-sample.png"}}]}]}'

Vision + tools

Native VisualCoT lets the model call image-processing tools (crop, rotate, POINT, draw_line) inside its reasoning trace for explainable multimodal decisions.

cURL
curl https://api.therouter.ai/v1/chat/completions \
  -H "Authorization: Bearer $THEROUTER_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "doubao/doubao-seed-1-6-vision",
    "messages": [{"role":"user","content":[{"type":"text","text":"解这道几何题并在图上画辅助线"},{"type":"image_url","image_url":{"url":"https://therouter.ai/assets/vision-sample.png"}}]}],
    "tools": [{"type":"function","function":{"name":"POINT","parameters":{"type":"object"}}}]
  }'
Fact ledger — every claim on this page traces here
sourceURLretrieved
Release dateohmygpt.com ↗2026-05-25verified
Architectureseed.bytedance.com ↗2026-05-25verified
VisualCoTdeveloper.volcengine.com ↗2026-05-25verified
Licensewww.volcengine.com ↗2026-05-25verified
Training cutoff——unknown
Inference backendswww.volcengine.com ↗2026-05-25verified
MME-SCI (image-only)arxiv.org ↗2026-05-25to verify
Gaokao 2025 (multimodal)seed.bytedance.com ↗2026-05-25to verify
ByteDance announces Seed1.6 series at FORCE conferenceseed.bytedance.com ↗2026-05-25verified
Doubao-Seed-1.6-vision publicly documented (250815)volcengine.com ↗2026-05-25verified
Does Doubao Seed 1.6 Vision support the same context window as the upstream 256K model?www.volcengine.com ↗2026-05-25to verify
How does VisualCoT differ from standard vision tool calling?developer.volcengine.com ↗2026-05-25to verify
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