Unverified50% confidenceFactExact time
OpenAI的API采用Token计费机制，Token约等于3/4个英文单词或1-2个中文字
1
Sources
50%
Confidence
Long-term
Relevance
7/18/2026
First Seen
Sources
Related Claims
UnverifiedThe billing unit for the OpenAI official API is the token; one token corresponds to approximately 0.75 English words or 0.5 Chinese characters, and input and output are billed separately.82% similarUnverifiedMainstream model providers such as OpenAI and Anthropic both adopt a two-way billing model of input tokens plus output tokens.71% similarUnverifiedOpenAI uses a dual-token strategy of short-lived Access Tokens paired with long-lived Refresh Tokens for session management.68% similarUnverifiedOpenAI API按token用量计费，输出token通常比输入token贵2-3倍，因为生成过程是自回归的67% similarUnverifiedMainstream AI vendors such as OpenAI, Google, and Anthropic all adopt an SDK+API business model, charging based on the number of calls or token consumption.67% similar
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