Plans and Limits

Free accounts are limited to 5 debates per day. Each debate can have up to 3 debaters and a maximum of 2 rounds. After running 3 debates in a single day, a CAPTCHA challenge is shown before each subsequent debate.

Users who are not signed in are treated as anonymous and are limited to 3 debates per hour at the IP address level. No debate history is stored for anonymous sessions. Signing in for a free account removes the IP-based hourly limit and enables debate history storage.

Debates run on the Free plan include a watermark indicating they were generated on the free tier. JSON export of debate transcripts is not available. The adjudicator uses the built-in algorithmic evaluation approach. Custom LLM adjudicator configuration is not available on Free. API key creation is not available on Free.

Pro accounts can run debates with up to 5 debaters and up to 4 rounds per debate. Debates have no watermark. Debate history can be exported as JSON. The adjudicator can be configured to use any supported LLM model. Up to 2 API keys can be created. No CAPTCHA is shown at any usage level.

Your credit balance is visible in the dashboard and via the API. Credits do not expire. You can purchase credits in amounts from $5 to $500 per transaction via the dashboard or using POST /v1/user/credits/checkout.

Auto-refill is available on Pro. Set a threshold balance and a top-up amount. When your balance falls below the threshold, credits are purchased automatically using your saved payment method. Auto-refill can be configured or disabled at any time from the billing section of the dashboard.

Enterprise accounts have no debate limit. Debates can include up to 10 debaters and up to 10 rounds. No watermark is applied. Full JSON export is available. Compliance exports are available in an audit-ready format that satisfies HIPAA and SOC 2 documentation requirements. The adjudicator can be configured to use any supported LLM model. Unlimited API keys can be created.

Enterprise accounts receive dedicated support with a custom SLA agreed at contract time.

You can estimate the cost of a specific debate configuration before running it using POST /v1/user/estimate-cost. The endpoint accepts the same parameters as the debate creation endpoint and returns a credit estimate.

Credits are deducted after the debate completes. If a debate is aborted before the synthesis phase, you are only charged for the rounds that ran. No credits are deducted for debates that fail before any round completes.

Credits do not expire. You can purchase credits in amounts from $5 to $500 per transaction via the dashboard billing page or programmatically via POST /v1/user/credits/checkout. The checkout endpoint returns a redirect URL to the payment provider. On success, credits are added to your balance immediately.

API keys are passed in the Authorization header using the format Authorization: Bearer dt_YOUR_KEY. The full key value is displayed only once at creation time. Store it securely. If a key is lost it cannot be recovered. Rotate keys by creating a new key and revoking the old one via DELETE /v1/user/api-keys/:key_id.

API keys are scoped to specific operations. The currently available scope is debate:run, which allows running debates and using the model recommendation endpoint. Management endpoints covering history, billing, profile, and credits require a session token and cannot be accessed with an API key.

Each API key can be given a name for identification purposes. Keys can be set to active or inactive without deleting them. Optional expiration dates can be set at creation time or updated afterwards. Inactive keys are rejected with HTTP 401. Expired keys are also rejected with HTTP 401.

Anonymous users are limited to 3 debates per hour per IP address. No history is stored for anonymous sessions. Signing in for a free account removes this IP-level hourly limit.

Free accounts are limited to 5 debates per day. There is no hourly debate limit once signed in. A CAPTCHA is required before each debate after the third debate in a calendar day.

Pro accounts have no debate rate limits. Standard hygiene limits apply to management endpoints to prevent abuse, but these are not intended to constrain normal usage patterns.

Enterprise accounts have no rate limits applied.

The POST /v1/auth/check-provider endpoint is rate limited to 10 requests per minute per IP address for all users regardless of tier. This limit is a security measure to prevent email enumeration and cannot be raised on any plan.