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Unstract

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104 reviews
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4.5
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LLM Whisperer

73 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

31 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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Baskar J.
BJ
Baskar J.
2X Co-founder and CTO, Konfer.ai
06/16/2026
Validated Reviewer
Verified Current User
Review source: Organic

LLM Whisperer Simplifies PDF and Scan Ingestion

LLM Whisperer makes document ingestion much easier by extracting clean, structured text from PDFs and scanned documents that are otherwise hard for LLM workflows to process reliably. I especially like that it handles document layout and messy source files well, reducing preprocessing work before downstream AI analysis.
Madhavi A.
MA
Madhavi A.
AI Engineer @Injala || GenAI || DAIICT’24
06/08/2026
Validated Reviewer
Review source: Organic

Preserves Layout Well

The ability to preserve the layout information.
Verified User in Information Technology and Services
AI
Verified User in Information Technology and Services
05/27/2026
Validated Reviewer
Verified Current User
Review source: Organic

Reliable Invoice Extraction with Better Layout Preservation for Automation Workflows

What I like most about LLM Whisperer is how well it handles complex invoice layouts while still preserving the original document structure. We use the API in our automation workflows to extract invoice data automatically, and the layout_preserving output mode has made downstream parsing much more reliable compared to traditional OCR tools we tested before. Another big advantage is how easy it was to integrate into our existing workflows and automation pipelines through the API. We currently use it together with automation tools to process invoices and extract structured information with minimal manual intervention. Even scanned PDFs and documents with inconsistent formatting are handled surprisingly well, which reduced many of the edge cases we previously had to manage manually. From a usability perspective, the API documentation and onboarding process were straightforward enough to get a working integration running quickly. The overall performance has also been solid for our use case, especially considering the quality of the extracted text and layout preservation. It has significantly reduced manual processing time and improved the reliability of our document automation pipeline, which translated into a clear operational benefit for our team.

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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