Quoting from Anthropic's Michael Sellitto at the IMF Artificial Intelligence and Escalating Cyber Risks panel today. This is the first time Anthropic has given a projection for what percentage of frontier model training will be done by Claude in 2027. In March this number was 1%. By next year they are projecting 80-90%.
'Last year, about zero percent of our code was written by our model Claude. By August of that year, about 50% of the code inside the company was written by the model. That's because we released a new model in August of last year, and the engineers said, ‘Actually, this is the first time that Claude is writing code at my level.’ Anthropic only hires the best software engineers in the world, and it was at that point that Claude finally got to their level. In August we were at 50%. By the end of last year we were at 80–90% of the code in the company being written by the model.
What percentage of training the next-generation models is Claude leading today? This is following a similar step change. At the beginning of the year it was zero percent. In April it was 3%. In August, 26% of the process of building the next generation of models is being led by Claude. And we can project out - and we had a blog post about this not too long ago - that sometime next year it could be 80–90%.'