Expired50% confidenceFactExact time
The hard Context Window limit for Claude 3.5/4 series models is 200K tokens, corresponding to approximately 150,000 English words or 300,000 Chinese characters.
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
7/2/2026
First Seen
Valid until: 9/30/2026(expired)
Sources
Claude Code Context Management in Practice: The Five-Layer Backpack and Token Optimization Principles
bilibilionedayhigh6/7/2026
Related Claims
Unverified早期模型的上下文窗口仅有4K至8K个Token，约3000至6000个英文单词82% similarUnverifiedThe context window of large language models is limited, and the length of text that can be processed in a single inference is typically tens of thousands to hundreds of thousands of tokens.76% similarUnverified对于英文代码1个token大约对应4个字符，100万token的上下文窗口大约等同于75万个英文单词72% similarUnverifiedAnthropic 在 Claude 系列中将可用上下文扩展至 200K Token 量级，相当于约15万个英文单词71% similarUnverified4K tokens大约相当于3000个英文单词，100万tokens相当于约75万个英文单词69% similar
Cite This Claim
Stable URI
https://kongchang.com/claim/51794API
curl https://kongchang.com/api/v1/knowledge/claims/51794MCP
get_claim(id=51794)