Core Insights - The article discusses the transformative impact of AI across various industries, focusing on the real-world applications and usage of AI products, particularly through the lens of OpenRouter's backend data [3][4]. Group 1: AI Product Rankings - OpenRouter's top 10 AI applications by call volume as of September 2025 include Kilo Code, Cline, BLACKBOX.AI, Roo Code, liteLLM, SillyTavern, ChubAI, HammerAI, Sophia's Lorebary, and Codebuff [5][6]. - Notably, well-known applications like Cursor and GitHub Copilot are absent from this list, as they typically utilize self-built services or directly integrate with Azure and OpenAI, rather than relying on third-party routing [6]. Group 2: Developer Preferences - Over 13,000 developers participated in the "AI Product Marketplace" community, indicating a strong interest in discovering valuable AI applications [7]. - The ranking reflects a clear preference for coding agents, which occupy six of the top ten spots, highlighting the essential demand for developer tools [10]. Group 3: Kilo Code - Kilo Code, developed by a remote-first team, aims to automate repetitive programming tasks such as dependency management and bug fixing, allowing developers to focus on architecture and innovation [12][14][16]. - It integrates over 400 models, enabling users to call them directly without complex API configurations, and offers a zero-commission pricing model with a $20 free credit [21][24][25]. Group 4: Cline - Cline, another prominent coding agent, emphasizes a "self-sufficient yet controllable" approach, allowing developers to confirm each step of the coding process [29][31][33]. - It has raised approximately $32 million in seed and Series A funding, with over 500,000 stars on GitHub and more than 2 million installations on VS Code [30][38]. Group 5: BLACKBOXAI - BLACKBOXAI positions itself as a comprehensive commercial AI coding agent, offering both a VS Code extension and a web app for various user interactions [40][41]. - It has surpassed 10 million users and 4 million VS Code installations, with a subscription model ranging from $9.99 to $99.99 per month [50][51][52]. Group 6: Roo Code - Roo Code is an open-source VS Code plugin that allows local AI agent usage for reading, writing, and debugging code, emphasizing user control and privacy [53][54][57]. - It has completed $6.4 million in seed funding and is designed to run in offline environments for enhanced security [64]. Group 7: liteLLM - liteLLM is an open-source library that simplifies the integration of over 100 language models, providing unified access and cost tracking features [67][69][73]. - It was founded by Krrish Dholakia and Ishaan Jaffer, raising approximately $1.6 million in seed funding [73]. Group 8: SillyTavern - SillyTavern is a local front-end tool designed for advanced users, allowing seamless interaction with various AI models while providing extensive customization options [75][78]. - It is a community-driven project with over 200 contributors and has not yet sought external VC funding [79]. Group 9: ChubAI - ChubAI is a GenAI platform aimed at content creators and role-playing enthusiasts, offering high customization and immersive experiences [82][86]. - It operates on a subscription model, relying on user engagement and product development for growth [88]. Group 10: HammerAI - HammerAI focuses on privacy and creative expression, allowing users to engage in interactive storytelling and character dialogue without cloud dependency [90][92]. - It supports offline usage and does not require user registration, appealing to privacy-conscious individuals [95]. Group 11: Sophia's Lorebary - Sophia's Lorebary enhances existing role-playing tools by providing lorebook, scenario, and plugin management capabilities, enriching user experiences [101][102]. - It is an open-source project led by community volunteers, currently without public funding records [106].

Model Introduction - Grok Code Fast 1 is a fast and economical reasoning model for agentic coding [1] - The model excels at agentic coding [1] Availability - Grok Code Fast 1 is available for free on multiple platforms including GitHub Copilot, Cursor, Cline, Kilo Code, Roo Code, opencode, and Windsurf [1]