# When Can You Run a Claude Fable-Level LLM Locally on a MacBook?

> If the trend holds, you will be able to run a model with Fable 5 capabilities on your MacBook around May 2027. Open source matched Opus 4.5 in nine months.

If the trend holds, you will be able to run a model with Fable 5 capabilities on your MacBook around **may 2027**.

It took nine months for open source to catch up with Claude Opus 4.5: **Qwen3.8-27B** came out last week, has matching performance on coding benchmarks, and runs on a MacBook.

The rate at which open source models catch up to closed source is increasing: It took 33 months for open source to match GPT 3, and since open source has been catching up faster and faster.

![HP3bwx-WgAE5yWD.jpeg](https://lukasvonkunhardt.com/_assets/HP3bwx-WgAE5yWD.jpeg)
> source: https://x.com/peterom/status/2089067438658760786

If we expect the trend to hold, we could expect a Fable 5 like model in about 9-11 months (March to May next year). 

You would still need an expensive machine to run a model like this, but a ~$4,000 MacBook Pro with 64 GB of RAM would allow you to generate about 20–30 tokens per second, with **no API bill**, and **nothing leaves your machine**. (4000 $ doesn't seem that crazy if I look at my Claude bill...)

BUT: now that Fable 5 is out, I don't see myself using Opus 4.5 anymore - the Fable 5 release reset my expectations. At the same time I probably COULD use a less capable model for a lot of tasks. It's just convenient to always use the most capable model if the budget allows for it.

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Source: https://lukasvonkunhardt.com/fable-quality-model-on-a-macbook/ · Author: Lukas von Kunhardt · Published: 2026-08-17