Compare vendors
Side-by-side risk profiles. Default view: Cursor vs Claude Code vs GitHub Copilot. Add up to 4 tools via ?tools=cursor,claude-code,... in the URL.
ChatGPT
ai-chat · OpenAI
Claude (Anthropic)
ai-chat · Anthropic
Nerf Index
29 on watch
31 on watch
Defining stat
1 major change on record
2 major changes on record
Critical
0
0
Major
1
2
Last 90 days
1
1
Peak nerf score
47
36
Cadence
—
~210d
Forecast: next 30d
67%
31%
Forecast: next 90d
96%
67%
Most likely change
billing-model-shift
feature-gated
Pricing page
Recent receipts