ChatGPT is hard-blocked in China but Claude is not — why?
OONI evidence shows OpenAI's ChatGPT and Google's Gemini are 100% blocked across Chinese ISPs (DNS-level blocking). Anthropic's Claude shows zero anomalies in the same window. The asymmetry is consistent and reproducible.
- 100%
- ChatGPT block rate (CN)
- 100%
- Gemini block rate (CN)
- 0%
- Claude anomaly rate (CN)
- 14 OONI samples per service
- measurements