Murati翁荔陈丹琦公司发布首个产品，让大模型微调门槛暴降，要重新发明一个OpenAI

Core Insights - Thinking Machines Lab has launched its first product, Tinker, which simplifies model fine-tuning to the level of modifying Python code [1][12] - The company has moved past the "zero product, zero revenue" valuation of $84 billion [2] Product Overview - Tinker is a flexible API designed for fine-tuning language models, allowing researchers to control algorithms and data without managing infrastructure [12][13] - The initial support for Tinker includes Qwen3 and Llama3 series models, enabling easy switching between small and large models with a simple string modification in Python code [15] - Tinker’s API automates low-level training steps while handling scheduling, scaling, and error recovery [17] Technical Features - Tinker utilizes LoRA to allow multiple training tasks to share the same GPU, reducing costs and enabling more parallel experiments [22] - The gradient update strategy for Tinker is defined as: New parameters = Original parameters + Learning rate × Advantage value × Gradient of log probability [28] Industry Reception - Tinker has garnered significant attention in the industry, with beta testers noting its excellent balance between abstraction and tunability compared to other fine-tuning tools [30] - Research teams from prestigious institutions have already achieved notable results using Tinker [30] Strategic Vision - Thinking Machines Lab aims to reinvent a version of OpenAI that emphasizes open research sharing and greater freedom for researchers [10][11] - The company’s mission aligns with making cutting-edge models more accessible for customization based on individual needs [14]