Conversation Simulator
Free online conversation simulator, no installation required. Estimate token usage and API costs for multi-turn chats
What is Conversation Simulator?
Simulate multi-turn conversations to estimate cumulative token usage and API costs.
How to Use
1. Select a model and enter a system prompt. 2. Add user and assistant messages. 3. Summary shows total tokens, remaining context, and estimated cost.
▶How accurate are token estimates?
Approximately 1 token per 3.5 characters. For exact counts, use a dedicated tokenizer.
▶Does this make API calls?
No, this is a planning tool that estimates without making any API calls.
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