Unverified50% confidenceFactExact time
A model's maximum input length, API billing, and inference cost are usually all calculated by the number of tokens.
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Long-term
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10/14/2026
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UnverifiedEvaluating the per-task cost of large models requires considering both the token unit price and the number of tokens consumed to complete the task; the output token consumption of chain-of-thought reasoning models may increase by several times or even dozens of times.78% similarUnverifiedReasoning models may consume several times or even more than ten times the output tokens, directly driving up API call costs.78% similarUnverified大模型API计费通常按输入和输出token分别计价，不同模型单价差异可达百倍78% similarVerifiedAPI call fees are priced separately for input tokens and output tokens, and the unit price of output tokens is typically higher than that of input tokens, because the output stage requires autoregressive inference.77% similarUnverified旗舰模型的单次推理成本可能是轻量模型的数十乃至上百倍，源于参数量、上下文窗口长度、推理步骤复杂度等因素74% similar
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