AI Tools & Skills Platform
Write Better. Think Sharper. Prompt Like a Pro.
Design, test, and optimise AI prompts across every major model, from one clean, fast platform built for people who take AI seriously.
Pay as you go with credits, or choose a monthly subscription, whichever suits you.
Loadsamodels. Every tool. One workspace.
Stop switching between AI tools. FourCandles brings Skills, direct model chats, structured prompting tools, and a learning journey into one clean, fast platform built for people who take AI seriously.
Features
Skills
Create named AI personas with custom system prompts and background knowledge. Every conversation starts exactly where you set it, with full persistent history.
Quick Prompt
Fire off a prompt to any model without friction. Instant results, no setup. Switch models on the fly and compare responses side by side.
Multi-Model Chat
Send the same message to OpenAI, Claude, Gemini, and Perplexity. See how each model thinks differently, and pick the best answer.
Vibe Coding Helper
A guided wizard that turns your vague idea into a structured, platform-ready development prompt for Replit, Cursor, Lovable, or Bolt.
AI Mastery Journey
A gamified learning module that takes you from AI basics to advanced prompting techniques, with quizzes, badges, and real progress.
Socratic Prompt Tool
Not sure what to ask? Answer a series of guiding questions and let the tool craft a high-quality, structured prompt for you.
Introducing Skills — Your AI. Your rules. Every time.
Skills are named AI personas you create once and reuse forever. Set a system prompt, choose a model, and every conversation starts exactly how you want, with full persistent history.
Examples of Skills you can create:
- LinkedIn Content Writer — Claude Sonnet 4.5
- Python Code Reviewer — GPT-4o
- Socratic Business Coach — Claude Sonnet 4.5
- Executive Email Rewriter — Gemini 2.5 Flash
Quick Prompt examples
- "Summarise this into 3 bullet points for a senior stakeholder…" — GPT-4o
- "Write a cold email subject line that gets opened by a busy founder…" — Claude 3.5
- "Explain quantum entanglement to a 10-year-old using LEGO bricks…" — Gemini 2.5
- "Give me 5 alternatives to the word 'innovative' for a pitch deck…" — GPT-4o
- "Rewrite this paragraph in a confident, direct executive tone…" — Claude 3.5
Simple, transparent plans
Every plan unlocks every feature and every AI model. The only difference is how many credits you get each month.
Free — €0/month
50 credits per month. Includes:
- Skills (AI personas)
- Quick Prompt
- Multi-model chat
- Vibe Coding Helper
- Socratic Prompt Tool
- AI Mastery Journey
- Image generation
- Top-up credits available
Starter — €10.99/month (Most popular)
1,000 credits per month. Includes everything in Free, plus:
- 1,000 credits per month
- All models unlocked
- Skills with background knowledge
- Image generation
- Top-up credits available
Pro — €32.99/month
5,000 credits per month. Includes everything in Starter, plus:
- 5,000 credits per month
- All models unlocked
- Skills with background knowledge
- Image generation
- Top-up credits available
Just want to pay as you go?
Skip the monthly plan entirely. Buy a one-off bundle of top-up credits — they never expire and work exactly like subscription credits. Use them at your own pace, whenever you need them.
Top-up bundles:
- Starter Pack — 500 credits — €5.49 (€1.098 per 100 credits). Never expires. Instant delivery.
- Value Pack — 1,500 credits — €13.99 (€0.933 per 100 credits). Save 15%.
- Power Pack — 3,000 credits — €24.99 (€0.833 per 100 credits). Best value.
What do credits get you?
- Gemini Flash message — access to Google's fast Gemini 2.5 Flash model
- GPT-4o message — OpenAI's flagship model
- Claude Sonnet message — Anthropic's Claude Sonnet 4.5
- Perplexity Sonar search — real-time web search with citations
- Gemini image generation — AI-generated images with Gemini
- DALL-E 3 image — OpenAI's DALL-E 3 image generation
Ready to get seriously good at AI prompts?
Sign in and start building your prompt skills today. It takes 30 seconds.
Sign in with Google or Replit to get started for free.
FourCandles is an independent service and is not affiliated with, endorsed by, or a recognised business partner of OpenAI, Anthropic, Google, Perplexity, or any other AI provider. All product names, brand names, and trademarks referenced on this site belong to their respective owners and are used solely to describe the third-party APIs that power the FourCandles service.