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Prompt Length Counter

Estimate prompt tokens and compare your input against leading AI model limits.

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324Characters48Words1Lines81Tokens
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AI model input and output limits

ModelContext window≈ Words
GPT-6 AstraVerified against official docs · Oct 20261.05M tokens789,000
GPT-6.1 SolVerified against official docs · Oct 20261.05M tokens789,000
Claude Sonnet 5.5Verified against official docs · Oct 20261M tokens750,000
Gemini 4 ArgonVerified against official docs · Oct 20261M tokens750,000
DeepSeek V4.1 FlashVerified against official docs · Oct 20261M tokens750,000
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Approximately 96,000 English words. The exact number varies by language, formatting, and vocabulary.

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