GPT-5免费开放 马斯克不服

Core Insights - OpenAI has launched its new flagship AI model, GPT-5, which is now available to all users, including free users, marking a significant advancement since the release of GPT-4 two and a half years ago [1][10] Model Features - GPT-5 integrates large language models from the GPT series and reasoning models from the "o" series, eliminating the need for users to manually switch between different models [4] - The model shows significant improvements in various fields such as mathematics, programming, visual perception, and healthcare, making it OpenAI's most powerful model to date [4] - The factual error rate of GPT-5 has decreased by 45% compared to GPT-4o, and by 80% in deep thinking mode compared to o3 [4] Performance Comparison - In the LMArena competitive landscape, GPT-5 ranks first across all subcategories, achieving an arena score of 1,481, outperforming competitors like Gemini 2.5 Pro and ChatGPT-4o-latest [7] - GPT-5 has demonstrated exceptional capabilities in programming, setting records for OpenAI's models by creating complex applications and games with minimal input [7][9] User Experience Enhancements - The model adapts dynamically to user backgrounds and regional characteristics, improving the accuracy and reliability of health guidance [9] - GPT-5 introduces four distinct "personalities" for user interaction: Cynic, Robot, Listener, and Nerd, enhancing user engagement [9] Pricing Strategy - OpenAI has made GPT-5 accessible to various user tiers, including free users with usage limits and Plus users with significantly higher quotas [10] - The pricing for developers using the API is competitive, at $1.25 per million tokens for input and $10 for output, making it cheaper than previous models and competitors [10] Financial Context - OpenAI recently secured $8.3 billion in new funding, raising its valuation to $300 billion, which is expected to bolster investor confidence and support the company's growth strategy [12] - The release of GPT-5 is seen as a strategic move to retain talent and enhance employee loyalty amid a competitive hiring environment in Silicon Valley [12]