One-time trialPartially privateHigh confidence

BytePlus ModelArk

A finite allowance for new accounts; it does not recur.

Visit provider

Free accessOne-time trial

Payment cardNo

AccountNot documented

Sources9 first-party links

API endpointhttps://ark.ap-southeast.bytepluses.com/api/v3

Models mentioned

seed-1.6seed-1.6-flashseed-2-1-turboseed-translationskylark-proskylark-vision

Equivalent paid value

At least $2.40 once

Daily spread—

Weekly spread—

Monthly spread—

One-time$2.40

How this was valued: Three captured representative models are each assigned the documented typical 500K-token package and valued at their costlier output rate for deterministic best-case upper bounds. The subtotal treats the per-model packages as independent, as described by the offer, but exact eligibility and expiry remain dynamic in the Model Activation and Billing Center.

Models without a captured matching rate are excluded, and the public offer describes 500K as typical rather than guaranteed for every model.

Limits and terms

Typical Tokens Per Eligible Model: 500,000
Recurrence: once per account
Exact Models And Expiry: Dynamic in Model Activation and Billing Center.
Exclusions: pluginsknowledge basesbatch inferencecache storage

What happens to your prompts?

Partially privatePartial review

Campaign terms establish free tokens but do not resolve content TTL, training, improvement, or model-specific routing.

Plan Scope: BytePlus ModelArk and its free-token campaign; product-specific, regional, and model-provider terms may add conditions.
Prompt Retention: No ModelArk-free-tier prompt TTL was verified in the campaign or general legal terms.
Response Retention: not documented
Ordinary Logging: BytePlus collects service, account, device, security, and usage information; the legal pages do not clearly isolate inference content.
Model Training: No campaign-specific no-training commitment was found for ModelArk prompts and outputs.
Product Improvement: General service improvement uses are permitted; content scope remains unresolved.
Human Or Operator Access: BytePlus and service providers may process content; no zero-operator-access commitment was found.
Subprocessors And Routing: BytePlus infrastructure and selected third-party/open models can create additional model-specific terms.
Deletion Controls: General privacy rights exist; no inference-content TTL or per-request deletion control was found.
Caveat: Promotional token terms establish price eligibility, not privacy. They must not be treated as a data-processing agreement.

Governing documents

Terms Of Service: https://www.byteplus.com/en/legal/terms-of-service
Privacy Policy: https://www.byteplus.com/en/legal/privacy-policy
Promotional Terms: https://docs.byteplus.com/en/docs/legal/termsandconditions_modelark_free-token_campaign

Free-token campaign terms BytePlus Terms of Service BytePlus Privacy Policy

Eligibility

Enterprise Information Submission Required: Yes
Payment Method Required: not explicitly stated

Primary sources

Official DocsFree token packagehttps://docs.byteplus.com/en/docs/modelark/1399514 Official DocsAPI overviewhttps://docs.byteplus.com/api/docs/modelark/1465347 Official TermsFree-token campaign termshttps://docs.byteplus.com/en/docs/legal/termsandconditions_modelark_free-token_campaign Official TermsBytePlus Terms of Servicehttps://www.byteplus.com/en/legal/terms-of-service Official PrivacyBytePlus Privacy Policyhttps://www.byteplus.com/en/legal/privacy-policy Official PricingBytePlus ModelArk pricinghttps://docs.byteplus.com/en/docs/ModelArk/1544106 Package Registry StatsPyPI download stats for byteplus-python-sdk-v2 (includes byteplussdkark and byteplussdkarkruntime ModelArk clients)https://pypistats.org/packages/byteplus-python-sdk-v2Official Repositorybyteplus-sdk/byteplus-python-sdk-v2 official SDK repositoryhttps://github.com/byteplus-sdk/byteplus-python-sdk-v2 Official DocsBytePlus ModelArk overview and first-party model listhttps://docs.byteplus.com/en/docs/ModelArk/1330310