SJinn

SJinn sells monthly credit allowances in four plans. The pricing page has a Monthly and a Yearly view. Monthly shows Standard at $19.9, Pro at $49.9, Ultra at $99 and Enterprise at $999 a month, with 20,000, 60,000, 120,000 and 1,200,000 credits. The Yearly view, selected by default under a limited-time 40% banner with a countdown, shows $12, $30, $60 and $720 a month, but never states what is charged per year, so we do not turn those figures into annual totals. Enterprise is 28% below its monthly price rather than 40%.

The page says there is a free trial, and the terms say new users get complimentary credits. Neither gives an amount or expiry, so plan around the paid prices until you see the balance in your own account. Extra credits are sold in packs from $20 for 17,000 to $5000 for 5,500,000 on the credit page, to members only; it says they never expire.

The pricing table gives each model a credit cost. On Standard, 20,000 credits cover about 333 seconds of seedance at 60 credits a second, or 9 Veo3 generations at 2,100 each. Pro and Ultra add Tool Mode models listed as unlimited, but no fair-use terms are given. The table also names Kling 1.6 and 2.1 next to a plan list that mentions seedance 2.5, so it may be out of date for some models.

The privacy policy, updated 10/07/2024, says generated or transformed images may be used anonymously to improve models unless you opt out. The terms describe a GPT-4O image tool at 100 credits per image, which does not match the pricing page, and say you keep rights to generated images without addressing commercial use or the licences of the third-party models inside the agent. For client or branded work, ask support to confirm both points in writing and check the opt-out in your account.

The documentation describes an API with a key from your account, a CLI, an MCP connector that SJinn recommends for Claude, and Skills for Claude Code and Codex. We read the introduction and credits-usage pages; API pricing and rate limits were not stated there.

1. Record the credit balance shown after sign-up and whether trial output carries a watermark.
2. Ask the agent for one short clip, then ask Tool Mode for a similar clip with a single named model, and note the credits each uses.
3. Compare the credits used with the pricing table’s listed rate for that model.
4. Look in your account settings for the opt-out from model training before uploading any real files.
5. Keep the prompts, settings and outputs so the run can be repeated.

Accept it if the balance, watermark rule and credit use match the pages you read. Reject it if the trial amount is too small to finish one clip, or if the credits used differ from the table without explanation. No quality, speed or credit-use result is recorded here.