AI Prompt Token Estimator
Estimate token count for GPT-4o, Claude, Gemini, and other major LLMs. Understand context window usage and calculate approximate API costs before you build.
Your Prompt
Estimates use a GPT-style 4-char/token heuristic
Live Estimate
Estimated Tokens
0
~0 words
Context Window Usage
0.0%Within safe range
Cost / 1K Calls
$0.000
input tokens only
Model Limit
128K
tokens max
GPT-4o Pricing
* Prices approximate. Check provider for exact rates.
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