The Isaacus API has no upfront costs and no hidden fees. You pay only for what you use. This page provides an overview of the pricing for each of our API endpoints. All amounts are in USD. These prices may change in the future but we will always notify you before new pricing goes into effect. These prices do not include any taxes that we may be required to collect by law in your particular jurisdiction — such taxes will be applied automatically to your invoices. Those looking for on-premises deployments or a volume discount or to negotiate an alternative pricing model should contact us.

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Universal classification

Usage of our universal classifiers is charged solely based on the number of tokens inputted into them. Note that the number of tokens that get inputted into a universal classifier may differ from the number of tokens inputted into an API endpoint, for example, due to the addition of boilerplate tokens, as explained in our costs page. This table shows the price per token for each of our universal classifiers:
ModelPrice per tokenDescription
kanon-universal-classifier$1.00\$1.00 per million tokens / $0.000001\$0.000001 per tokenIsaacus’ flagship universal classification model, currently ranking as the world’s most accurate universal legal classifier.
kanon-universal-classifier-mini$0.50\$0.50 per million tokens / $0.0000005\$0.0000005 per tokenA more lightweight variant of the Kanon Universal Classifier, optimized for speed and cost-efficiency.

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Reranking

Since our universal classification models also function as rerankers, the pricing for our reranking endpoint is the same as for our universal classification endpoint.

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Extractive question answering

Usage of our extractive question answering models is charged based on the number of tokens inputted into them. Per token pricing for our answer extractors is as follows:
ModelPrice per tokenDescription
kanon-answer-extractor$1.50\$1.50 per million tokens / $0.0000015\$0.0000015 per tokenOur base answer extractor, designed to balance precision with throughput.
kanon-answer-extractor-mini$0.75\$0.75 per million tokens / $0.00000075\$0.00000075 per tokenA lighter version of the Kanon Answer Extractor, designed to maximize throughput and cost-efficiency.
Our answer extractors are slightly more expensive than our universal classifiers because extractive question answering is an inherently more computationally expensive task than universal classification.

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On premises

If you’re interested in running Isaacus models on your own infrastructure or in finetuning them on your own data, feel free to reach out to learn more about our on-premises solutions.