Who Is ChatGPT's Biggest Competitor?

Google's Gemini is arguably ChatGPT's biggest competitor by raw reach, since it sits built into Google Search through AI Overviews and AI Mode, surfaces billions of people already use every day.

Perplexity competes more directly on the specific use case of AI powered search, having built its entire product around citation-heavy research answers rather than general conversation.

Anthropic's Claude competes closely too, particularly for writing, coding, and reasoning tasks, though it has been slower to build out a dedicated live search product than the other two.

Showing up across all of these platforms, not just one, is the goal of LLM SEO software.