编程时代的终结：AI代理主导超百万行代码重写

文章认为，Bun 1.4从Zig到Rust的大规模重写主要由AI代理完成，标志着人类手动编程时代的终结 1。Bun 1.4包含从Zig到Rust的重写，新增超过100万行Rust代码（具体为+1,009,257行，-4,024行） 1。该重写由开发者Jarred Sumner使用预发布版Fable 5驱动，在11天内由多个AI代理完成6,778次提交 1。该重写消耗的token按API定价约值165,000美元 1。此外，GitHub 8月17日宕机后数据显示代码产出呈指数级增长 1。

结合Bun重写案例及自身使用Fable模型开发InfluxDB功能的经验，作者论证AI已能生成、测试并迭代复杂软件 1。作者使用Fable在14小时内完成InfluxDB的Iceberg集成功能（数千行代码），并在28小时内完成InfluxDB边缘数据复制系统 1。作者预计OpenAI将于9月发布Astra模型，达到或超过Fable级别 1。作者预计明年年底前该级别智能将足够廉价，可供大多数开发者全职使用 1。未来开发者将转向指导AI、构建验证系统，而非逐行编写代码 1。

A recent article argues that the era of manual human programming is drawing to a close, highlighting the massive rewrite of Bun 1.4 from Zig to Rust as a primary example 1. This monumental transition involved adding over 1 million lines of Rust code, specifically 1,009,257 additions and 4,024 deletions 1. The extensive rewrite was driven by developer Jarred Sumner using the pre-release version of Fable 5, resulting in 6,778 commits completed by multiple AI agents over an 11-day period 1. The computational cost for the tokens consumed during this process was estimated at approximately $165,000 based on API pricing 1. Furthermore, data following a GitHub outage on August 17 indicates an exponential growth in code production 1.

Drawing from personal experience, the author demonstrates that AI can now generate, test, and iterate on complex software by detailing their own work with the Fable model 1. Using Fable, the author completed an Iceberg integration for InfluxDB, comprising thousands of lines of code, in just 14 hours 1. Additionally, an edge data replication system for InfluxDB was finished in 28 hours 1. Looking ahead, the author predicts that OpenAI will release the Astra model in September, which will match or exceed the capabilities of Fable 1. By the end of next year, the author expects this level of AI intelligence to become affordable enough for most developers to use on a full-time basis, shifting the focus of future developers toward guiding AI and building verification systems rather than writing code line by line 1.