Changes in the system prompt between Claude Opus 4.6 and 4.7
Culture Index
Score Breakdown
Relevance
3/25
Freshness
25/25
Authority
18/20
Brand Signal
18/15
Depth
2/15
5-Axis Cultural Radar
Article URL: https://simonwillison.net/2026/Apr/18/opus-system-prompt/ Comments URL: https://news.ycombinator.com/item?id=47823270 Points: 142 # Comments: 84
