ChatGPT rivals like Google’s Gemini, xAI’s Grok, and, to a lesser extent, Meta AI, are closing the gap to ChatGPT, OpenAI’s popular AI chatbot, according to a new report focused on the consumer AI landscape from venture firm Andressen Horowitz.
The report, in its fifth iteration, showcases two and a half years of data about consumers’ evolving use of AI products.
And for the fifth time, 14 companies appeared on the list of top AI products: ChatGPT, Perplexity, Poe, Character AI, Midjourney, Leonardo, Veed, Cutout, Eleven Labs, Photoroom, Gamma, Quillbot, Civitai, and HuggingFace.
The companies represent a cross section of how consumers are using AI: for general assistance, companionship, image and video editing, voice generation, productivity, and model hosting.
Five other companies appeared on all but the first report, the firm notes, including Claude, DeepAI, JanitorAI, Pixelcut, and Suno, representing general AI use, companionship, image editing, and music generation.
For the first time in the series of reports, Google gained four spots on the list of the top gen AI consumer web products with entries for Gemini, AI Studio, NotebookLM, and Google Labs. These products now have their own separate domains, allowing their growth to be tracked separately from one another.
a16z says its report relies on data from third-party market intelligence firms, including Similarweb for web products and Sensor Tower for mobile app data.
Of note, No. 2 app Gemini is closing the gap to No. 1 app ChatGPT on mobile devices, but with almost half as many monthly active users. Not surprisingly, Gemini’s AI technology sees stronger adoption on Android, with nearly 90% of the monthly active user base. On the web, Gemini also came in second place behind ChatGPT, with approximately 12% of ChatGPT’s visits.
The company’s AI Studio, a developer-oriented sandbox for building with Gemini models, entered the top 10 list of AI web products in the 10th spot; NotebookLM was No. 13. Google Labs, a destination for Google’s AI experiments (like Flow, Project Mariner, and Doppl), ranked at No. 39.
The report indicates that Meta AI and Grok are also chasing the top AI app, ChatGPT.
Grok ranked fourth on the web and No. 23 on mobile. This is quick growth, given that Grok went from having no standalone app at the end of 2024 (it was first launched on X) to now, upwards of 20 million monthly active users. In July 2025, Grok also climbed nearly 40% when Grok 4 was released.
Meta’s general assistant ranked No. 46 on the web — the same as in March — but it didn’t make the list of top mobile AI apps. In part, it was hampered by the news that Meta AI was sharing some users’ posts publicly on the web without their informed consent.