Apps
Explore
Aspect DirectoryKnowledge GraphAnalysis Lenses
Learn
Get StartedWhy TellDearGuideArticlesEssentialsGlossaryFAQDocumentationProviders
DE — DeutschLogin

🧪 This platform is in early beta. Features may change and you might encounter bugs. We appreciate your patience!

🧪 TellDear is in early beta. Features may change and you might encounter bugs. We appreciate your patience and feedback!

Documentation

Everything you need to know about TellDear — from getting started to the full aspect taxonomy.

1. Getting Started

TellDear is a media and argument analysis platform. It helps you see through rhetoric, detect flawed reasoning, and train your critical thinking skills — powered by a taxonomy of 535 aspects across 6 dimensions.

You can use TellDear without an account for browsing the taxonomy and reading articles. AI-powered apps work immediately in free mode — or register and add your own API key for the best results.

2. Apps Overview

TellDear offers 25 AI-powered apps organized into categories:

Explore all apps →

3. How to Use

  1. Choose an app from the Apps page.
  2. Paste or type your text into the input field.
  3. Click the action button (Analyze, Decode, Respond, etc.).
  4. Review the results — each finding links to its aspect in the taxonomy.

💡 Most apps require an API key. The heuristic mode in the Text Analyzer works without one.

4. The Aspects

TellDear's taxonomy contains 535 aspects organized in 6 dimensions:

Each aspect has binary verification steps, a formal logic pattern, examples, and related aspects. Browse them all in the Aspect Directory.

5. Account & API Keys

TellDear supports multiple AI providers. You can use keys from Anthropic, OpenAI, Google, Mistral, xAI, DeepSeek, Groq, or OpenRouter.

  1. Create a free account on TellDear.
  2. Get an API key from console.anthropic.com.
  3. Paste the key in your Account settings.

Your key is encrypted and used only for your own requests. We recommend setting a monthly spending limit (e.g. $5–10) at your provider.

You can add multiple keys — if one fails (rate limit, quota), TellDear automatically tries the next one.

💡 Our recommendation: Start with Google Gemini (free tier, great quality) or Anthropic Claude (best analysis quality). Most users spend less than $5/month.

  1. Sign up at console.anthropic.com
  2. Go to API Keys → Create Key
  3. Copy the key (starts with sk-ant-)
  4. Paste in Account → API Keys

Cost: ~$3/1M input tokens (Sonnet). Set a $5–10/month spending limit in Settings → Limits.

Tip: Best overall quality for critical thinking analysis. Claude excels at nuanced reasoning.

  1. Go to Google AI Studio (sign in with Google account)
  2. Click Create API Key → select a project (or create one)
  3. Copy the key (starts with AIza)
  4. Paste in Account → API Keys

Cost: Free tier: 15 requests/min for Gemini 2.0 Flash. Paid: ~$0.10/1M input tokens (Flash) — extremely affordable.

Tip: Best price-performance ratio. Generous free tier — great for getting started without spending anything.

  1. Sign up at platform.openai.com
  2. Go to API Keys → Create new secret key
  3. Copy the key (starts with sk-)
  4. Paste in Account → API Keys

Cost: ~$2.50/1M input tokens (GPT-4o). Set a monthly limit under Settings → Billing → Usage limits.

Tip: Great all-rounder. Strong at structured analysis and multilingual content.

  1. Sign up at platform.deepseek.com
  2. Go to API Keys → Create new API key
  3. Copy the key (starts with sk-)
  4. Paste in Account → API Keys

Cost: ~$0.27/1M input tokens (V3) — one of the cheapest frontier models. Cache hits even cheaper at $0.07/1M.

Tip: Excellent value. DeepSeek R1 for reasoning, V3 for general analysis. Very affordable.

  1. Sign up at console.mistral.ai (La Plateforme)
  2. Go to API Keys → Create new key
  3. Copy the key
  4. Paste in Account → API Keys

Cost: Free tier available for experimentation. Paid: ~$0.10/1M tokens (Small) to $2/1M (Large).

Tip: European provider (Paris). Free tier for prototyping. Strong multilingual support.

  1. Sign up at console.x.ai
  2. Go to API Keys → Create API Key
  3. Copy the key (starts with xai-)
  4. Paste in Account → API Keys

Cost: ~$3/1M input tokens (Grok 3). $25/month free credit for new accounts.

Tip: Strong reasoning model. Good for complex argument analysis.

  1. Sign up at openrouter.ai (Google/GitHub login available)
  2. Go to Keys → Create Key
  3. Copy the key (starts with sk-or-)
  4. Paste in Account → API Keys

Cost: Free models available (rate-limited). Paid: pass-through pricing from each provider + small margin.

Tip: Access 300+ models with one key. Great if you want to try different models without separate accounts.

  1. Sign up at console.groq.com
  2. Go to API Keys → Create API Key
  3. Copy the key (starts with gsk_)
  4. Paste in Account → API Keys

Cost: Free: 1,000 requests/day. Ultra-fast inference on Llama models.

Tip: Fastest inference available. Free tier is generous. Uses open-source models (Llama 3.3 70B).

Any OpenAI-compatible provider works. If your provider has an OpenAI-compatible API, it will likely work with TellDear.

✨ Browsing the taxonomy, the Aspect Directory, the Knowledge Graph, and all articles is completely free — no account or key needed.

See all supported providers →

6. FAQ & Support

Have questions? Check the FAQ for common questions about the platform, apps, privacy, and more.

For feedback or issues, use the Contact page.