How credits work
The Dolphy API uses the same credit pool as dolphy.chat. Buy credits at dolphy.chat/credits, and use them to pay for both web and API usage. No separate API billing or invoicing.
Members buy 153 credits for the same $9.99 that non-members spend on 100.
Chat completions
1 credit per 10,000 tokens (input + output combined). Minimum 1 credit per call. Tracked via theusage block returned by the upstream model.
A typical short chat call (200 input + 300 output tokens = 500 total) costs
1 credit. A long-context conversation with 50,000 tokens costs 5
credits.
Image generation
Per-image cost depends on the model. FromGET /v1/models:
Multi-image requests (
n > 1) bill linearly: n × per-image cost.
Image editing
2 credits per edit. Single model —seedream-4.5. Specialty creative-mode.
Video generation
Per-video cost depends on duration and resolution. Cheapest variant is 5s 480p at 10 credits; most expensive is 10s 1080p at 55 credits.
Use
POST /v1/video/quote to get an exact credit cost before queueing.
Motion control
5 credits per second of reference video. A 10-second clip costs 50 credits. Includes character swap + motion retargeting via Kling v3.What happens if you run out mid-stream
Chat: we still complete the response, deduct what we can, and your next call returns402 until you top up. We never cut off in the middle of a
streaming response.
Image / video / motion: pre-flight balance check. If you can’t cover the
full cost, the call fails with 402 before we touch the upstream
provider. No partial billing.
Failed requests
If a call fails on our side or upstream returns5xx, you don’t get
charged. For video specifically, if a queued job times out or errors, we
automatically refund the credits you spent at queue time.