# Syntheia (ChatGPT App)

> Compare and query contracts

- Type: app
- Publisher: SYNTHEIA PTY LTD (official)
- Categories: Business
- Website: https://chatgpt.com/plugins/plugin_asdk_app_6a98163f30548191864ee5e6188b09f6
- Open in ChatGPT: https://chatgpt.com/plugins/plugin_asdk_app_6a98163f30548191864ee5e6188b09f6
- Version: 1.0.0
- Listed: 2026-10-04

## About

Syntheia brings two things lawyers do every day into ChatGPT.

Compare: upload a counterparty's draft and your last version, and Syntheia returns a clause-by-clause list of insertions, deletions, and moved text, with a redlined document to download.

Query: ask a question about one agreement, a group of agreements, or your whole workspace. Syntheia navigates each document's structure, follows cross-references, and returns the exact provision text with a link to the source clause, so every answer is grounded in the document rather than in a summary.

Documents stay in your private Syntheia workspace, and results are scoped to your account.

## How to use

1. **Add it in ChatGPT** Open Syntheia in ChatGPT's Plugin directory (button above), select + to add it and sign in if asked.

2. **Use it in a chat** Type @ in the composer and pick Syntheia, or start your message with its name. ChatGPT may also suggest it when it fits what you ask.

## Skills

- **redline-issues-list**: Turn a Word document's tracked changes (redline, markup, blackline) into a structured issues list for lawyers. Use this whenever someone uploads or refers to a redlined .docx and wants the changes reviewed, summarised, risk-assessed, or turned into an issues list or change log -- including casual phrasings like 'review this redline', 'what did they change', 'go through the counterparty's markup', 'summarise the blackline', or 'is there anything nasty in here'. Reads w:ins/w:del revisions straight from the OOXML in document order with real clause numbers, separates out formatting-only edits, picks up Word comments and counter-edits, and builds a change / comments / impact table -- then asks which side of the deal the user is on and re-weights the impact ratings from that position.

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Source: https://chatgptplugins.directory/apps/syntheia · Index: https://chatgptplugins.directory/llms.txt · Independent and community-run. Not affiliated with or endorsed by OpenAI. ChatGPT is a trademark of OpenAI.