Overview
Kanon Answer Extractor is a state-of-the-art legal extractive question answering model optimized for extracting metadata and relevant passages from legal documents. It ranks first on LegalQAEval ahead of OpenAI GPT 4.1, Google Gemini, and RoBERTa large. It is 20% more accurate than GPT 4.1.
Kanon Answer Extractor supports a local context window of 512 tokens but can process documents of any length thanks to Isaacus' semchunk semantic chunking algorithm (https://github.com/isaacus-dev/semchunk ).
On a g6.xlarge instance, Kanon Answer Extractor can process up to 118 million tokens per hour, equivalent to roughly 29.5k average-length legal documents.
Like all other Isaacus SageMaker model deployments, your Kanon Answer Extractor Mini deployment will be fully air-gapped--no data will enter or leave your AWS account.
Conveniently, Isaacus SageMaker models are also compatible with the standard Isaacus Python SDK via the Isaacus SageMaker Python integration (https://docs.isaacus.com/integrations/amazon-sagemaker ).
You can negotiate a discount to Kanon Answer Extractor by contacting us at https://isaacus.com/support .
Highlights
- Ranked first on [LegalQAEval](https://huggingface.co/datasets/isaacus/LegalQAEval) ahead of OpenAI GPT 4.1, Google Gemini, and RoBERTa large, achieving 20% greater accuracy than OpenAI GPT 4.1 at legal information, entity, and metadata extraction.
- Supports legal documents of any length thanks to Isaacus' [semchunk](https://github.com/isaacus-dev/semchunk) semantic chunking algorithm.
- Capable of processing ~29.5k legal documents (119 million tokens) per hour on a single g6.xlarge instance.
Details
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Pricing
Dimension | Description | Cost/host/hour |
|---|---|---|
ml.g6.xlarge Inference (Batch) Recommended | Model inference on the ml.g6.xlarge instance type, batch mode | $4.99 |
ml.g6.xlarge Inference (Real-Time) Recommended | Model inference on the ml.g6.xlarge instance type, real-time mode | $4.99 |
ml.g5.xlarge Inference (Batch) | Model inference on the ml.g5.xlarge instance type, batch mode | $4.99 |
ml.g5.2xlarge Inference (Batch) | Model inference on the ml.g5.2xlarge instance type, batch mode | $4.99 |
ml.g5.4xlarge Inference (Batch) | Model inference on the ml.g5.4xlarge instance type, batch mode | $4.99 |
ml.g5.8xlarge Inference (Batch) | Model inference on the ml.g5.8xlarge instance type, batch mode | $4.99 |
ml.g5.16xlarge Inference (Batch) | Model inference on the ml.g5.16xlarge instance type, batch mode | $4.99 |
ml.g6.2xlarge Inference (Batch) | Model inference on the ml.g6.2xlarge instance type, batch mode | $4.99 |
ml.g6.4xlarge Inference (Batch) | Model inference on the ml.g6.4xlarge instance type, batch mode | $4.99 |
ml.g6.8xlarge Inference (Batch) | Model inference on the ml.g6.8xlarge instance type, batch mode | $4.99 |
Vendor refund policy
To the maximum extent permitted by law, there are no refunds for consumption of this product.
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Delivery details
Amazon SageMaker model
An Amazon SageMaker model package is a pre-trained machine learning model ready to use without additional training. Use the model package to create a model on Amazon SageMaker for real-time inference or batch processing. Amazon SageMaker is a fully managed platform for building, training, and deploying machine learning models at scale.
Version release notes
Patched release of this model with version 0.1.3 of the Isaacus SageMaker Model Server, offering feature parity with version 0.7.0 (https://github.com/isaacus-dev/openapi/blob/8591b10de78a2b028df3f74fb5d6574d23bb62b2/openapi.yaml ) of the Isaacus API.
This patch disables support for older AWS instance types with outdated CUDA versions barring g5.2xlarge for batch transformation which, although not working, must be included due to AWS' own limitations preventing validation with newever instances.
Additional details
Inputs
- Summary
For a user-friendly walkthrough of how to get started deploying Isaacus models on SageMaker, check out the Isaacus SageMaker quickstart guide on our docs.
This model runs on the fully air-gapped Isaacus SageMaker Model Server, which supports all the same functionality as the standard Isaacus API except that requests to the server must be proxied through the /invocations endpoint.
For example, if you wanted to send a POST request to /v1/extractions/qa with the data {"model":"kanon-answer-extractor","query":"Who is the Governor-General?","texts":["The GG is Sam Mostyn."]}, you could so by sending /invocations the payload {"path":"/v1/extractions/qa","data":{"model":"kanon-answer-extractor","query":"Who is the Governor-General?","texts":["The GG is Sam Mostyn."]}}.
This means that minimal code changes are necessary to switch between the online Isaacus API and your own private Isaacus model deployments.
In fact, Python users can use the Isaacus SageMaker Python integration to automatically forward requests to the Isaacus API to SageMaker deployments using the standard Isaacus SDK.
Given that this is a private deployment and that authentication is managed by AWS, Isaacus API keys are not needed and are ignored.
As an extractive question answering model, Kanon Answer Extractor currently only supports the /v1/extractions/qa endpoint.
- Limitations for input type
- All the same limitations applicable to the Isaacus API except for the need for an API key.
- Input MIME type
- application/json
Input data descriptions
The following table describes supported input data fields for real-time inference and batch transform.
Field name | Description | Constraints | Required |
|---|---|---|---|
path | The path of the API endpoint being invoked (e.g., `/v1/extractions/qa`). | One of `v1/embeddings`, `/v1/rerankings`, `/v1/extractions/qa`, and `/v1/classifications/universal`.
| Yes |
method | The HTTP method used for the invocation (e.g., `POST`). Defaults to `POST`.
| One of `POST`.
| No |
headers | The HTTP headers to include in the invocation request. Defaults to `null`/`None`, in which case no additional headers are sent.
| Must be a mapping of strings to strings.
| No |
data | The data to be sent as the body of the invocation request. This can be any serializable object. Defaults to `null`/`None`, in which case no body is sent.
| - | No |
Resources
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Support
Vendor support
To get in touch with our support team, you can reach out via the support form on our website: https://isaacus.com/support . We endeavor to respond within 24 hours.
AWS infrastructure support
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