Practice real conversations. Get better. Every time.
ChatSim is your private AI sparring partner for the conversations that matter. Get quizzed on any school subject, rehearse job interviews and salary negotiations, sharpen your conflict-resolution skills — or build your own scenarios and pick the difficulty. The AI responds realistically to what you say and gives you concrete feedback, so you walk into the real thing sharper and better prepared.
Get started — it's freeNo credit card required during beta
🎁 Free during beta
During our test period you can use ChatSim completely free by connecting your own AI key (OpenAI, Claude or Gemini). Takes 2 minutes to set up.
No subscription required during beta. We'll let you know before anything changes.
🔒 Your data, your control (GDPR)
Your conversations are never stored on our servers — messages go straight to the AI provider you choose. We only keep your account, your saved progress and your settings, and you can delete them at any time.
ℹ️ Good to know
ChatSim is a practice tool, not professional advice. It does not replace legal, medical or psychological guidance. AI characters can be wrong or say unexpected things.
Homework study buddy
Switch to Homework mode: enter a subject, topic and grade level — the AI quizzes you and grades you with per-topic mastery
Ready-made & custom scenarios
Job interview, salary negotiation, conflict resolution, networking and more — or describe your own situation and the AI builds it
Adjustable personality
Set the character to friendly, neutral, skeptical or confrontational to match the challenge you want
Speak or type
Talk to your microphone to reply, and hear the AI out loud on speakers or headphones
Coaching feedback
After each conversation you get a score, per-skill breakdown and concrete tips to improve
Track your progress
Your sessions, average score and daily streak are saved so you can see yourself improve
5 languages
English, Norwegian, German, Swedish, Danish — with local laws and cultural norms
No credit card required during beta