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Unstract

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LLM Whisperer

82 reviews

LLM Whisperer by Unstract extracts text from complex documents and optimizes it for LLMs in a way they can best understand. Make text extraction effortless with a format-agnostic technology and get highly accurate OCR for any document: small or big, simple or complex. Always get precise results and don’t let document complexities hold you back anymore. Key Features and Benefits: - Control extraction modes: Ensure highly efficient, accurate, and cost-effective text extraction with different extraction modes: Native Text, Low Cost, High Quality, or Form. - Auto-compaction: Save big on token usage with Auto-Compaction that intuitively compacts non-value adding tokens - all while ensuring layout preservation. - Image pre-processing: Control API parameters like Median Filter or Gaussian Blur for high quality pre-processing. - Layout-preserving output: Maintain the original document’s layout and ensure maximum context for LLMs. - Form element detection: Make data extraction from complex forms easy with Checkbox and Radio Button identification. - API integration: Seamlessly fit LLM Whisperer into your existing systems with Extraction, Status, Highlight, or even Webhook Management RESTful APIs. Start with 100 pages per day for free with the LLM Whisperer Playground. No credit card required. No strings attached.

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Unstract

32 reviews

Unstract automates unstructured data extraction from diverse documents through LLMs and Agentic AI. Built for organizations that manage high volumes of documents in various formats, Unstract helps accurately transform raw data into meaningful insights with minimal human intervention. Its low-code interface makes it easy to configure extraction rules and execute API, ETL or Task workflows. Key Features: - Prompt Studio: Build custom prompts for LLMs to precisely extract specific data points and test outputs - all within a low-code interface. - LLM Challenge: Say goodbye to hallucinations. Increase trust in your outputs by configuring an additional LLM profile and get a result only if there’s a match. - Single Pass and Summarized Extraction: Experience lesser token usage during prompt testing with Single Pass and Summarized Extraction. - Human-in-the-Loop: Designate and loop in reviewers and approvers into the feedback cycle to minimize errors and reduce operational oversight. - Highlighting: Understand where your output was sourced from with source document highlighting for easy quality control and verification. All in a secure-by-design platform. Unstract is SOC 2 Type II and ISO 27001 certified, and GDPR & HIPPA-compliant. Use Unstract any way you like with 3 powerful editions: a) Unstract Cloud b) Unstract On-Prem c) Unstract Open Source (AGPL 3.0 certified) With Unstract, companies have realized: 95% accurate document extraction 80% lesser human touchpoints 20x boost in operational efficiency Get started now with a FREE 14-day trial.

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Verified User in Medical Practice
UM
Verified User in Medical Practice
05/18/2026
Validated Reviewer
Verified Current User
Review source: Organic

Simple and reliable document parsing tool

I’ve been using LLMWhisperer to parse and process documents, and it genuinely makes the whole workflow a lot easier. It saves me a lot of time because I don’t have to constantly clean up files or fix formatting issues by hand. The text it extracts is usually very accurate and easy to work with afterward. I also appreciate how simple it was to get started. The setup felt straightforward, and it handles more complicated documents better than I expected. Overall, I’ve had a good experience with it so far. It’s been especially useful when I’m working through larger volumes of documents, and it makes the entire pre-processing step much less annoying.
Niranjana D.
ND
Niranjana D.
Technical Project Manager at IQ BackOffice
05/09/2026
Validated Reviewer
Review source: Organic

Flexible AI-Powered Platform for Intelligent Document Processing

What I like most about Unstract is how it simplifies document processing and data extraction workflows. During our POC, we found the platform flexible and straightforward to configure across different document types and business use cases. The combination of OCR, LLM capabilities, and workflow orchestration helped us implement faster and reduced the need for extensive custom development.
Alex C.
AC
Alex C.
04/29/2026
Validated Reviewer
Review source: Organic

Solid Invoice Extraction via API, with Occasional Table and Handwriting Cleanup

I’ve been using LLMWhisper to process invoices and extract structured data from documents. Overall, it does a solid job with printed invoices—especially when it comes to pulling out key fields and organizing them into usable formats. That’s reduced a lot of manual data entry in our workflow. One thing I’ve noticed is that table extraction can occasionally come out slightly misaligned, so some fields may need minor cleanup afterward. It also struggles a bit with handwritten documents, particularly when distinguishing between similar characters like “0” and “O.” Even with those limitations, it still saves a significant amount of time compared to fully manual processing, and it works well for standard, machine-generated invoices. I’d recommend it for teams handling high volumes of structured documents, as long as you expect to do some manual validation for edge cases. The integration using the API is pretty straight forward with the API key, I easily integrated LLMWhisper with n8n using a simple http node. the 100 page per day give us ample usage to experiment and try your use case for basically free of cost.

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What is Unstract?

Unstract helps teams turn unstructured documents into structured, usable data. Users can extract data from complex files like invoices, contracts, bank statements, and forms, without the manual annotation or model training that older approaches demand. Unstract offers two solutions: Unstract, a no-code platform for automating document-heavy workflows from end to end, available on the Cloud and Self-Hosted Editions. And, LLMWhisperer, a layout-preserving parser that prepares messy documents for LLM-powered extractions. Together they give developers and enterprises a dependable path from raw documents to clean data, whether through API deployments, ETL pipelines, or full extraction workflows.

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unstract.com