AiPrice
Estimate OpenAI prompt token counts and USD costs through an API before sending the request.
About AiPrice
AiPrice is an API for estimating the token count and USD cost of a prompt before sending it to the OpenAI API. A request is authenticated with an X-API-KEY header, and the service returns a compact response containing a price estimate and token count. This makes it useful in development workflows where teams want to preview likely API spend, compare prompts, or add a cost check before an OpenAI request is made. The service offers 50 monthly credits on its free plan, while paid tiers increase the request allowance to 10,000 or 100,000 credits; an Enterprise option lists unlimited credits with custom pricing. Each credit represents one request. Estimates are based on OpenAI pricing data, but the actual amount charged by OpenAI can vary, so AiPrice should be treated as a planning aid rather than a billing authority. The documented model list includes GPT-4, GPT-3.5, GPT-3, and Codex-era model identifiers, which teams should compare with the models used in their current application before adopting the API.
Best for
Best use cases
Estimate prompt cost before an API call
Compare token counts across prompt variants
Insert a cost check into an application workflow
Compare before choosing
Uses credits per estimation request
Returns both estimated price and token count
Covers a documented set of OpenAI model identifiers
Features
Pre-request cost checks
Estimate the token count and likely USD cost before submitting a prompt to OpenAI.
Prompt cost comparison
Compare alternative prompt versions to identify options with lower estimated token costs.
Application cost guardrails
Add an API-based estimate to a development workflow before an OpenAI request is sent.
Pros
- The Free plan provides 50 monthly requests for testing an integration.
- Responses include both token count and estimated USD cost in a compact format.
- Any preferred HTTP client can call the API with the required X-API-KEY header.
Cons
- Every estimate consumes a credit, so repeated checks count against the monthly allowance.
- Cost results are estimates and may differ from the amount ultimately charged by OpenAI.
- The documented model list contains older identifiers, so compatibility with a current production model needs verification.
Pricing Plans
Free
- 50 credits
- 20 OpenAI models
- API documentation
- Email support
Basic
- 10,000 credits
- 20 OpenAI models
- API documentation
- Email support
Premium
- 100,000 credits
- 20 OpenAI models
- API documentation
- Email support
Enterprise
- Unlimited credits
- 20 OpenAI models
- API documentation
- Email support
* Pricing information is for reference only. Please refer to the latest announcement on AiPrice's official website.