platform · llm
Token Counter for ChatGPT
Count tokens before sending long prompts to ChatGPT. Context window tips and free token counter.
Updated 2026-05-21
Use Prompt Token Counter
Limits reference
- GPT-4o: ~128k tokens — Check OpenAI docs for current limits
- GPT-4: 128k / 8k variants — Model name in API matters
FAQ
- Why count tokens for ChatGPT?
- Long system prompts + documents can exceed context and truncate answers.
- Are tokens the same as words?
- No — roughly 4 characters per token in English; use a counter tool.
- Where is the token counter?
- Our LLM token counter runs in the browser on your pasted text.