Sebastian Raschka corrects torch.manual_seed typo in reasoning model book · Digg

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Sebastian Raschka corrects torch.manual_seed typo in reasoning model book

Entities: Sebastian Raschka

The change allows readers to reproduce LLaMA-3-8B log-probabilities.

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Sebastian Raschka corrects torch.manual_seed typo in reasoning model book

Entities: Sebastian Raschka

The change allows readers to reproduce LLaMA-3-8B log-probabilities.

Reactions from ranked influencers

3 posts

SR Sebastian Raschka@rasbt

6:11 AM · Jul 21, 2026

181TECH

Thanks everyone for all the kind words and feedback. Super happy that you are enjoying Build a Reasoning Model (From Scratch)! Unfortunately, there's small typo in listing 6.5 on page 198 (see video below). The line "torch.manual_seed(0)" should be "torch.manual_seed(5)" This correction is needed to reproduce the generated response in listing 6.5 and the corresponding log-probability outputs later in Chapter 6. If you use 0, the generated response and the results that follow will be different. This will be fixed in the next printing. I am sorry about the oversight, and I hope this note saves you some debugging time.

KM Kory Mathewson@korymath

9:29 AM · Jul 21, 2026

416TECH

@rasbt is 5 your favorite seed these days? or what is working best for you?

KD Kosta Derpanis (sabbatical in Zurich)@CSProfKGD

6:25 AM · Jul 21, 2026

929TECH

@rasbt Hope it won’t be fixed like the video 😂 Looking forward to purchasing it!

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IN Int@kexinrou

9:00 AM · Jul 21, 2026

@rasbt @rasbt Thank you for the responsible heads-up on the errata! It’s really helpful for readers. Looking forward to getting a chance to read Build a Reasoning Model (From Scratch) and building reasoning models from scratch! 🙏

KH Kim Hamilton Duffy@kimdhamilton

12:10 PM · Jul 21, 2026

@rasbt Thank you for the extraordinary attention to detail, as in your LLM from scratch book. You and your reviewers clearly did a thorough job, which made everything much easier to understand

FC Fabrizio Clipear@FabrizioClipear

7:17 AM · Jul 21, 2026

@rasbt typos in open-source code are just a tax on copy-paste engineering. the real mistake is thinking a seed value changes the lesson.

AP ash prasad@ashishprasad

8:25 AM · Jul 21, 2026

@rasbt bought the paper book, can't wait to arrive and start reading

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TS Take shot@Takeshot_13

7:30 AM · Jul 21, 2026

@rasbt Thanks for the heads-up! Glad you're enjoying it.

SR Sebastian Raschka@rasbt

6:11 AM · Jul 21, 2026

181TECH

Thanks everyone for all the kind words and feedback. Super happy that you are enjoying Build a Reasoning Model (From Scratch)! Unfortunately, there's small typo in listing 6.5 on page 198 (see video below). The line "torch.manual_seed(0)" should be "torch.manual_seed(5)" This correction is needed to reproduce the generated response in listing 6.5 and the corresponding log-probability outputs later in Chapter 6. If you use 0, the generated response and the results that follow will be different. This will be fixed in the next printing. I am sorry about the oversight, and I hope this note saves you some debugging time.

KD Kosta Derpanis (sabbatical in Zurich)@CSProfKGD

6:25 AM · Jul 21, 2026

929TECH

@rasbt Hope it won’t be fixed like the video 😂 Looking forward to purchasing it!

KM Kory Mathewson@korymath

9:29 AM · Jul 21, 2026

416TECH

@rasbt is 5 your favorite seed these days? or what is working best for you?

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Sentiment

Positive95.5%4.5%Negative

Based on 22 visible X reactions from 39 accounts; directional sample.

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