AIトークンカウンター — GPT、Claude、Gemini

GPT-4、Claude、Gemini等のAIモデルのトークン数をカウントしAPIコストを見積もります。無料で登録不要。

Tokens

Characters

Words

Lines

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Cost Estimate by Model

Model	Context	Input Cost	Output Cost
GPT-4o	128K	$0.000000	$0.000000
GPT-4o mini	128K	$0.000000	$0.000000
GPT-4 Turbo	128K	$0.000000	$0.000000
Claude 3.5 Sonnet	200K	$0.000000	$0.000000
Claude 3 Haiku	200K	$0.000000	$0.000000
Claude 3 Opus	200K	$0.000000	$0.000000
Gemini 1.5 Pro	1M	$0.000000	$0.000000
Gemini 1.5 Flash	1M	$0.000000	$0.000000
Llama 3.1 70B	128K	$0.000000	$0.000000
Mistral Large	128K	$0.000000	$0.000000

* Token count is an approximation (~4 characters per token for English). Actual tokenization varies by model. Prices are estimates based on published API pricing.

About AI Token Counter

Tokens are the basic units that AI language models use to process text. This tool estimates the token count for your text across popular models like GPT-4, Claude, Gemini, and Llama. It also calculates the approximate API cost for each model. Useful for optimizing prompts, estimating API costs, and staying within context window limits.

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AIトークンカウンター — GPT、Claude、Gemini

Cost Estimate by Model

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