What is SYNESIA?

SYNESIA is an educational tool that lets educators and citizens visualize how the same disinformation narratives spread across different European countries and languages.

What the tool IS

An accessible educational interface
A visualizer of propagation patterns
An awareness tool that relies on narratives supplied by its members

What the tool is NOT

An automatic fact-checking tool
A real-time detection system
A tool reserved for professionals

How does it work?

SYNESIA uses semantic clustering techniques: a multilingual model turns each text into a vector, so two narratives that say the same thing in different languages end up close to each other. Narratives added by members are converted this way, which makes it possible to find them by meaning (semantic search) and to group them when they tell the same story, across languages. Without member narratives, grouping runs on a small built-in demo corpus.

1

Collection

Narratives supplied by members

2

Analysis

Multilingual semantic vector

3

Clustering

Members' pages, by meaning

4

Visualization

Interactive presentation

Corpus and references

The corpus only holds what members add to it: no external database is imported into it. EUvsDisinfo and the IFCN are public references, to consult when cross-checking.

The corpus

Narratives added by signed-in members: a link, a document (PDF, DOCX, TXT), pasted text or a page sent from the browser extension. Each is flagged "Trusted" when it comes from a project partner or an administrator, "Community" otherwise.

EUvsDisinfoExternal reference

Public database of the European External Action Service: over 17,000 pro-Kremlin disinformation cases, documented and debunked. To cross-check: is this narrative already listed there?

IFCNExternal reference

International Fact-Checking Network (Poynter Institute): it publishes the list of signatories to its Code of Principles, vetted by external assessors. To cross-check: is the fact-checker you are citing on it?

Suite of 17 tools

5-layer architecture for disinformation analysis

1

Ingestion

News Search Partial

2

Core

Narrative Clustering Partial

Semantic Search Partial

Text Analyzer Demo

3

Analysis

Claim Detector Partial

Fact Checking Heuristic

Source Checker Functional

Temporal Analysis Functional

Coordination Detection Partial

4

Media

Image Forensics Partial

Geolocation Partial

Network Analysis Partial

5

Learning

Narrative Comparator Partial

Education Mode Functional

Interactive Games Functional

Social Simulation Half-real

Weekly Challenge Functional

Ethical data collection policy

SYNESIA is committed to using only ethical and privacy-respecting sources.

What we use

Content supplied by members

Links to web pages
PDF, DOCX, TXT documents
Pasted text
Images (EXIF metadata)
Browser extension (current page)

Public sources, queried on demand

Google News RSSon-demand keyword search of the news (News Search)
Cert Spottera domain's recent certificates, from Certificate Transparency logs (Source Checker)

Not used

X/Twitter API
Automated social media collection

No X/Twitter API access: ethical collection policy and terms of service compliance. No Telegram, Bluesky, Reddit or Mastodon connector either: content only enters the corpus when a member adds it.

What SYNESIA costs

These amounts are not prices: SYNESIA is free for its members. Hosting is a project cost, estimated in the project proposal and included in its budget.

For members

€0

Free: no subscription, no payment, a Mythodologie account is all you need.

Hosting, pilot phase

€45/month

Months 1 to 12 of the project, as estimated in the proposal.

Hosting, production

€200/month

Months 13 to 24 of the project, as estimated in the proposal: €2,940 of hosting over the 24 months.

The project

SYNESIA is developed as part of the Creative Europe Media Literacy 2026 programme, by the team at Mythodologie.

This project aims to strengthen media and disinformation literacy in Europe by providing accessible tools for educators and citizens.

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