引入新的 Anthropic 令牌計數 API

使用 Claude 時請密切注意您的成本

Anthropic has quietly released some exciting beta features over the last couple of days. One of these was the ability to process PDFs with their models, which can now understand both text and visual content within PDF documents. I’ll maybe write up something on that at a later date.

Anthropic 在過去幾天悄悄發布了一些令人興奮的測試版功能。其中之一是能夠使用模型處理 PDF，該模型現在可以理解 PDF 文件中的文字和視覺內容。稍後我可能會寫一些相關內容。

The other exciting beta feature, and the subject of this article, was the introduction of token counting. Crucially, you can count the tokens in user messages, PDFs and images before you send them to Claude. This is excellent news for those who like to monitor their token usage costs closely.

另一個令人興奮的測試版功能，也是本文的主題，是令牌計數的引入。至關重要的是，您可以在將使用者訊息、PDF 和圖像發送給 Claude 之前計算它們中的令牌。對於那些喜歡密切監控代幣使用成本的人來說，這是個好消息。

According to the official announcement from Anthropic (link here),

根據 Anthropic 的官方公告（連結在此），

“The token counting endpoint accepts the same structured list of inputs for creating a message, including support for system prompts, tools, images, and PDFs. The response contains the total number of input tokens.”

「令牌計數端點接受用於建立訊息的相同結構化輸入列表，包括對系統提示、工具、影像和 PDF 的支援。回應包含輸入令牌的總數。

And supports the following models,

並支援以下型號，

“Claude 3.5 SonnetClaude 3.5 HaikuClaude 3 HaikuClaude 3 Opus”

“克勞德 3.5 十四行詩克勞德 3.5 俳句克勞德 3 俳句克勞德 3 作品”