Unverified50% confidenceOpinionExact time
Sonnet 5 并非 token 高效的模型，在智能体任务中会消耗大量额外 token 导致实际 API 成本反而高于 Opus 4.8
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
7/20/2026
First Seen
Valid until: 10/18/2026
Sources
Related Claims
Unverified作者建议开发者在迁移决策前结合新 Tokenizer 重新计算真实 Token 消耗与总成本，不推荐急于将 Sonnet 5 设为主力模型74% similarVerifiedToken不仅影响模型的理解能力，还直接影响API调用成本69% similarUnverifiedAPI output tokens typically cost 2-5x more than input tokens because text generation requires more computational resources, with each generated token requiring a complete autoregressive decoding process.67% similarUnverified分词器切换使Sonnet 5的介绍性定价在设计上维持成本大致中性66% similarUnverifiedAI编程的大部分成本来自输入Token（Input Tokens），而非输出Token（Output Tokens）64% similar
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