Speech and Language Processing (3rd ed. draft)
Dan Jurafsky and James H. Martin

This release has is mainly a cleanup and bug-fixing release, with some updated figures for the transformer in various chapters. The August release made larger changes, including DPO in chapter 9, new ASR and TTS chapters, a restructured LLM chapter, and unicode in Chapter 2. Individual chapters and updated slides are below.

Here is a single pdf of Jan 6, 2026 book!

1. Feel free to use the draft chapters and slides in your classes, print it out, whatever, the resulting feedback we get from you makes the book better!
2. Typos and comments are very welcome (just email slp3edbugs@gmail.com and let us know the date on the draft)! (Don't bother reporting missing refs due to cross-chapter cross-reference problems in the indvidual chapter pdfs, those are fixed in the full book draft)
   
3. Gratitude! We've put up a list here of the amazing people who have sent so many fantastic suggestions and bug-fixes for improving the book. We are really grateful to all of you for your help, the book would not be possible without you!
4. How to cite the book:

   Daniel Jurafsky and James H. Martin. 2026. Speech and Language Processing: An Introduction to Natural Language Processing, Computational Linguistics, and Speech Recognition with Language Models, 3rd edition. Online manuscript released January 6, 2026. https://web.stanford.edu/~jurafsky/slp3.

5. A bib entry for the book is here.

   @Book{jm3,
     author =       "Daniel Jurafsky and James H. Martin",
     title =        "Speech and Language Processing: An Introduction to Natural Language Processing, 
     		  Computational Linguistics, and Speech Recognition,
   		   with Language Models",
     year =         "2026",
     url = {https://web.stanford.edu/~jurafsky/slp3/},
     note = "Online manuscript released January 6, 2026",
     edition =         "3rd",
     }
   

6. When will the book be finished? Don't ask.
7. If you need the previous Aug 2025 draft chapters, they are here; if you need the previous Jan 2025 draft chapters, they are here;