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Doubao Seed 1.8
doubaodoubao/doubao-seed-1-8
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-1-8","messages":[{"role":"user","content":"η¨δΈζθ§£ι Seed 1.8 ηδΈη§ζθ樑εΌγ"}]}'Tool use
Supports OpenAI-shape function calling. Strong Chinese instruction following makes it suitable for Chinese-language tool agents.
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-1-8",
"messages": [{"role": "user", "content": "δ»ε€©ε京倩ζ°ε¦δ½οΌ"}],
"tools": [{"type":"function","function":{"name":"get_weather","parameters":{"type":"object","properties":{"city":{"type":"string"}}}}}]
}'Fact ledger β every claim on this page traces here
| source | URL | retrieved | |
|---|---|---|---|
| Release date | seed.bytedance.com β | 2026-05-25 | verified |
| Architecture | github.com β | 2026-05-25 | verified |
| Thinking modes | seed.bytedance.com β | 2026-05-25 | verified |
| Training cutoff | β | β | unknown |
| License | github.com β | 2026-05-25 | verified |
| BrowseComp-en | seed.bytedance.com β | 2026-05-25 | verified |
| ZeroBench | seed.bytedance.com β | 2026-05-25 | to verify |
| VideoMME | seed.bytedance.com β | 2026-05-25 | to verify |
| WorldTravel | seed.bytedance.com β | 2026-05-25 | to verify |
| ByteDance releases Seed1.8 general agentic model | seed.bytedance.com β | 2026-05-25 | verified |
| ByteDance launches Seed 2.0 family, superseding Seed 1.8 | volcengine.com β | 2026-05-25 | verified |
| Is Doubao Seed 1.8 multimodal? | seed.bytedance.com β | 2026-05-25 | to verify |
| What are the three thinking modes in Seed 1.8? | seed.bytedance.com β | 2026-05-25 | to verify |