ByteDance Seedance 2.5: text / first-frame / reference / first+last-frame modes, 4–30 s, 480P–1080P, native audio switchable, billed per second.
curl 'https://api.chinesemodels.ai/v1/chat/completions' \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "Seedance-2.5",
"messages": [{ "role": "user", "content": "Hello!" }]
}'Prices are per 1M tokens unless the model is billed per call. Final cost depends on the tokens actually processed by the upstream provider.