Unverified50% confidenceFactExact time
Claude Code的Sonnet 4.5拥有20万Token上下文窗口，其中约40%仅仅是系统提示词
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
9/11/2026
First Seen
Valid until: 12/10/2026
Sources
Related Entities
Related Claims
UnverifiedClaude 3.5 Sonnet原本支持200K上下文窗口,部分参数压缩服务将其压缩到32K甚至更短70% similarUnverified200K上下文窗口意味着可以一次性输入约15万行Python代码62% similarUnverifiedClaude Haiku 4.5拥有20万token的上下文窗口和6.4万token的最大输出长度61% similarUnverifiedGPT-4 128K的128K指上下文窗口大小为128,000个token，约等于10万个英文单词或5-6万个中文字符59% similarUnverifiedClaude 3系列的200K上下文约可容纳1.5万行代码58% similar
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