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Unstract

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4.5
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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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PL
Peter L.
04/28/2026
Validated Reviewer
Verified Current User
Review source: Organic

Preserves Messy Document Structure with Inline Checkbox Signals

It preserves the structure and intent of messy, real-world documents without forcing us to over-engineer around it. In surfaced checkbox signals inline (like [X]) instead of burying them in coordinate systems. That is a huge win compared to other tools.
Verified User in Consumer Goods
AC
Verified User in Consumer Goods
04/28/2026
Validated Reviewer
Review source: Organic

Super Fast, Accurate, and Cleanly Formatted Output

It’s super fast compared to the alternatives, and it’s also very accurate. The formatting is clean and consistent, which makes the output easy to read.
Verified User in Information Technology and Services
AI
Verified User in Information Technology and Services
04/28/2026
Validated Reviewer
Verified Current User
Review source: Organic

Reliable Document Parsing for Real-World LLM Workflows

A strong point of Unstract LLMWhisperer is how well it handles complex document parsing, especially with messy PDFs and difficult layouts where many tools struggle. I like that it preserves structure and extracts content in a way that is very usable for downstream LLM workflows, which saves a lot of preprocessing effort. Another thing I appreciate is that it is practical and developer-friendly, making it easy to integrate into real document intelligence pipelines rather than feeling like a demo-oriented tool.

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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