Placed and practicing with a chatbot
You can tell a chatbot "act as an interviewer and ask me a coding question" and it will. For a first look at a topic that works. The trouble starts when you want to know how you actually did, because it is built to be agreeable and it is not running your code.
Side by side
Read by the model, which guesses whether it works.
Run against test cases in a sandbox, in eight languages.
Whatever the model says that day. Ask twice and you get two answers.
A fixed rubric with written anchors for each score, and a grader that deducts by how much each mistake matters and quotes its evidence.
A chat. You set it up and keep it on track.
A timed round with an editor, a voice interviewer and, for system design, a diagram canvas the interviewer can see.
Each chat starts fresh.
History, per-skill trends and a readiness number across sessions.
Where a general chatbot is the better choice
- Explaining a concept you do not know yet. Ask it anything, as many times as you like.
- Flexibility. It will role-play any niche round you can describe.
- You may already be paying for it.
Where Placed is
- An honest number. The grader only credits what you actually did and has to quote the moment behind each score, and Pro shows you those quotes.
- Code that is actually executed.
- The AI-assisted coding round, where you are graded on how you use an assistant. A chatbot cannot grade you on using itself.
Using both
Use a chatbot to learn and to talk through a solution afterwards. Use Placed when you want to be tested the way the interview will test you.