What is the best free conversational AI chat tool?
Asked "What is the best free conversational AI chat tool?", ChatGPT, Copilot, Gemini, Google AI Mode and Perplexity named 9 distinct tools across 5 answers on September 8, 2026, and 7 of them in two or more answers, and all 5 engines agreed on ChatGPT, the only tool every engine named.
Measured acrossChatGPTCopilotGeminiGoogle AI ModePerplexity
7 of 9 names confirmed · named in 2 or more of 5 answers · asked September 8, 2026 · 5 engines
The best free conversational AI chat tool depends on the intended use, with options like ChatGPT, Claude, and Perplexity standing out in different categories.
- 1ChatGPTnamed in 5 of 5 answers
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- 2Claudenamed in 4 of 5 answers
- 3Google Gemininamed in 3 of 5 answers
- 4DeepSeeknamed in 2 of 5 answers
- 5Perplexity AInamed in 2 of 5 answers
- 6Perplexitynamed in 2 of 5 answers
- 7Microsoft Copilotnamed in 2 of 5 answers
- 8Proton Lumonamed in 1 of 5 answersone answer
- 9Character.AInamed in 1 of 5 answersone answer
LOCKED
The full measurement
- The position each of the 5 engines gave all 9 names.
- How many of the 5 answers named each of them.
- 22 sampled observations behind this ranking, and where the engines disagree.
- Fan-out — the query each engine actually searched.
- Every citation, and the sources nobody cited.