Side-by-side comparison · Updated April 2026
| Description | Grok by xAI is a state-of-the-art conversational AI designed for both serious and casual discussions, accessible with a subscription to X Premium or X Premium+. Grok integrates advanced multimodal capabilities, bridging the gap between the digital and physical worlds as highlighted by the Grok-1.5 Vision model. With substantial Series B funding of $6 billion, xAI is rapidly advancing its suite of AI technologies, including a specialized integrated development environment (IDE) for prompt engineering. xAI is headquartered in the Bay Area and is actively recruiting AI Engineers and Researchers in various specializations. | InputAI offers a cutting-edge AI solution called ChatGPT-4, the latest and most advanced AI chat model from OpenAI. This platform allows users to create a personalized AI bot from a wide range of templates, each representing famous personalities and specific use cases. With various options such as the Instagram Copycat Assistant, Personalized Cold Email Bot, and more, ChatGPT-4 aims to revolutionize the way we interact with AI. The system requires users to sign in with Google or an email address to start creating their AI bot. |
| Category | Conversational AI | Chatbot |
| Rating | No reviews | No reviews |
| Pricing | Free | N/A |
| Starting Price | Free | N/A |
| Plans |
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| Tags | conversational AImultimodal capabilitiesGrok-1.5 Vision modelsubscriptioninteractive discussions | personalized AI botAI chat modelChatGPT-4 systemfamous personalities templatesspecific use cases |
| Features | ||
| Advanced conversational AI | ||
| Multimodal capabilities | ||
| Subscription-based access | ||
| Integrated development environment (IDE) for prompt engineering | ||
| Specialized in serious and casual discussions | ||
| Digital and physical world integration | ||
| Series B funding of $6 billion | ||
| Bay Area headquartered | ||
| Ongoing recruitment for AI specialists | ||
| Grok-1.5 Vision model | ||
| Latest AI chat model | ||
| Personalized AI bots | ||
| Wide range of templates | ||
| Easy sign-in with Google or email | ||
| User-friendly interface | ||
| Improved conversational abilities | ||
| Various business applications | ||
| Customer support | ||
| Free and premium plans | ||
| Advanced personalization options | ||
| View Grok xAI | View InputAI | |
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