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AI Search Volatility Index
Track daily AI search answer volatility across Gemini, ChatGPT, Perplexity, and Claude. The ThothGraph Volatility Index measures citation shifts, LLM response drift, and industry-level turbulence in real time.
What is the AI Search Volatility Index?
The AI Search Volatility Index is a free daily benchmark that measures how much AI-generated search answers change from day to day. It tracks answer stability across major AI providers including Google Gemini, OpenAI ChatGPT, Anthropic Claude, and Perplexity AI, using a diversified corpus of queries spanning multiple industries and intent types.
Key Metrics Tracked
- Composite volatility score on a 0-10 scale
- Per-provider answer turbulence (Gemini, ChatGPT, Perplexity, Claude)
- Industry-level volatility breakdown by vertical
- Citation winner and loser tracking across AI engines
- 7-day and 30-day trend analysis for visibility shifts
Why Monitor AI Search Volatility?
As AI-powered search becomes the primary discovery channel, understanding when and why AI answers change is critical for SEO, AEO, and GEO professionals. High volatility periods signal algorithm updates, model retraining, or knowledge cutoff shifts that directly impact brand visibility in AI-generated responses.