📊 LLM Token & Context Limit Calculator
Calculate exact token counts and estimate API costs across GPT-4o, Claude 3.5, DeepSeek, and Gemini 1.5.
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Estimated Tokens
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Characters
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Words
Context Window Usage Comparison
GPT-4o (128k)0%
Claude 3.5 Sonnet (200k)0%
DeepSeek V3 / R1 (64k)0%
Gemini 1.5 Pro (2M)0%
❓ Frequently Asked Questions (FAQ)
How are tokens calculated for different languages and code?
In general, 1 token is approximately 4 characters or 0.75 words in English. Non-Latin scripts like Chinese, Japanese, or Korean (CJK) typically consume 1 to 2 tokens per character due to byte-pair encoding (BPE) tokenizers.
What are the context limits for major AI models?
Context limits vary widely: DeepSeek V3/R1 supports 64k tokens, OpenAI GPT-4o supports 128k tokens, Anthropic Claude 3.5 Sonnet supports 200k tokens, and Google Gemini 1.5 Pro leads with up to 2 million tokens.
Is my text data private when using this token estimator?
Yes, 100% private. All character counting, word processing, and token estimation logic run entirely in your web browser. No text or code is sent to external servers.
