multi-ai — Compare AIs

multi-ai is the fastest way to get answers from multiple AIs at once — and a synthesized "best" final answer. WHY MULTI-AI?multi-ai is the fastest way to get answers from multiple AIs at once - and a synthesized best final answer. WHY MULTI-AI? Different AI models have different strengths. GPT-OSS is fast and free. Claude is great at nuance. Gemini handles long context. Instead of asking each one separately and comparing tabs, ask them all at once in multi-ai. Then let another AI read all the answers and synthesize the most useful conclusion. FEATURES - 100% FREE models: GPT-OSS (OpenAI's open-source GPT), Llama 3 & 4, Qwen, plus Gemini Flash and Claude Haiku - usable without payment. - 4 MODES: Single, Compare, Synthesis (A + B + a third AI that combines them), and Extended (4-5 AIs at once). - SMART SYNTHESIS: the synthesis column reads every response and gives you a wrap-up - what they agree on, what they disagree on, and a balanced final conclusion. - 9 LANGUAGES: English, Korean, Japanese, Chinese, Spanish, French, German, Portuguese, Vietnamese - auto-detected. - BRING YOUR OWN KEY (optional): register your own API key for Claude, GPT, or Gemini and pay the provider directly. - PRIVACY-FIRST: we don't sell your data and we don't train AI on it. Delete your account anytime. Stop tab-hopping between AI tools. Ask once, compare, and decide with confidence. Different AI models have different strengths. GPT-OSS is fast and free. Claude is great at nuance. Gemini handles long context. Instead of asking each one separately and comparing tabs, ask them all at once in multi-ai. Then let another AI read all the answers and synthesize the most useful conclusion. FEATURES - 100% FREE models: GPT-OSS (OpenAI's open-source GPT), Llama 3 & 4, Qwen, plus Gemini Flash and Claude Haiku — usable without payment. - 4 MODES: Single, Compare (two AIs side by side), Synthesis (A + B + a third AI that combines them), and Extended (4-5 AIs at once). - SMART SYNTHESIS: the synthesis column reads every response and gives you a wrap-up — what they agree on, what they disagree on, and a balanced final conclusion. - 9 LANGUAGES: English, Korean, Japanese, Chinese, Spanish, French, German, Portuguese, Vietnamese — auto-detected. - BRING YOUR OWN KEY (optional): register your own API key for Claude, GPT, or Gemini and pay the provider directly. - PRIVACY-FIRST: we don't sell your data and we don't train AI on it. Delete your account anytime. Stop tab-hopping between AI tools. Ask once, compare, and decide with confidence.