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Doubao Seed 2.0 Lite (260215)
bytedancebytedance/doubao-seed-2.0-lite-260215
How TheRouter serves this differently from the vendor
As the vendor operates it
BytePlus / ModelArk lists the underlying seed-2-0-lite-260215 as callable, but the reviewed official pricing table only publishes later Lite snapshots, not this exact 260215 row.
On TheRouter
TheRouter exposes the route as an OpenAI-compatible chat-completions model and records the stored token price in standard-models.yaml. A long-context price and cache-hit billing are not exposed on this public model row.
API guide
Chat completion
Minimal OpenAI-compatible request for classification, extraction, or short summarization workloads.
cURL
curl https://api.therouter.ai/v1/chat/completions \
-H "Authorization: Bearer $THEROUTER_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "bytedance/doubao-seed-2.0-lite-260215",
"messages": [
{"role": "user", "content": "Summarize this customer request in one sentence and return the urgency."}
]
}'Tool calling
Use tools for lightweight routing agents while keeping the inexpensive Lite route pinned.
cURL
curl https://api.therouter.ai/v1/chat/completions \
-H "Authorization: Bearer $THEROUTER_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "bytedance/doubao-seed-2.0-lite-260215",
"messages": [{"role": "user", "content": "Decide whether this request needs billing, technical, or account support."}],
"tools": [{
"type": "function",
"function": {
"name": "classify_request",
"description": "Classify the support request",
"parameters": {"type": "object", "properties": {"queue": {"type": "string"}}, "required": ["queue"]}
}
}]
}'Structured JSON
Use response_format for extraction tasks; still validate the schema in your application boundary.
cURL
curl https://api.therouter.ai/v1/chat/completions \
-H "Authorization: Bearer $THEROUTER_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "bytedance/doubao-seed-2.0-lite-260215",
"response_format": {"type": "json_object"},
"messages": [{"role": "user", "content": "Return JSON with keys topic and urgency for: my invoice is wrong."}]
}'Fact ledger — every claim on this page traces here
| source | URL | retrieved | |
|---|---|---|---|
| TheRouter model id | standard-models.yaml ↗ | 2026-07-29 | verified |
| Upstream snapshot | provider-models/astraflow-bytedance.yaml ↗ | 2026-07-29 | verified |
| Context window | standard-models.yaml ↗ | 2026-07-29 | verified |
| Maximum completion | standard-models.yaml ↗ | 2026-07-29 | verified |
| Input / output modalities | standard-models.yaml ↗ | 2026-07-29 | verified |
| Supported OpenAI-style parameters | standard-models.yaml ↗ | 2026-07-29 | verified |
| TheRouter stored price | standard-models.yaml ↗ | 2026-07-29 | verified |
| Long-context tier | BytePlus ModelArk pricing ↗ | 2026-07-29 | unknown |
| Training cutoff | — | — | unknown |
| License / weights | BytePlus ModelArk ↗ | 2026-08-13 | verified |
| TheRouter records BytePlus Seed 2.0 Lite (260215) pricing gap | BytePlus ModelArk pricing ↗ | 2026-07-29 | verified |
| Is `bytedance/doubao-seed-2.0-lite-260215` the same page as `doubao/doubao-seed-2-0-lite`? | standard-models.yaml ↗ | 2026-07-29 | to verify |
| What happens above 128K prompt tokens? | BytePlus ModelArk pricing ↗ | 2026-07-29 | to verify |