Study directly from sources. Your tutor guides you when needed and curates the next source.
Study workspace
Understand how modern LLMs work
01 / Start here
Tell DecodeLM what you want to understand.
Study goal
Understand LLM architecture from attention to inference
AI that answers for you makes you worse at learning. AI that makes you think makes you better.
Students using ChatGPT scored worse on tests than those who studied without it.
Bastani et al., Wharton / PNAS 2025A Socratic AI tutor (one that never gives the answer directly) doubled learning in controlled trials.
Kestin et al., Harvard / Scientific Reports 2025Testing yourself beats re-reading. Struggle activates the neural pathways that make knowledge stick.
Adesope et al., 2017 meta-analysisEvery feature in DecodeLM is built around these findings.
Read the full research →Read the source. Make the note. Form the connection. The tutor is there to move you forward—not to think for you.
The learning loop
The work you do here becomes something you can return to, review, and build on.
“Attention lets each token weigh the context that matters.”
Your explanations become knowledge you can practice later.
Different center of gravity
Good tools can work together. DecodeLM is for the part no generated output can replace: the understanding you build yourself.
Start a Study from a goal worth understanding. Free to try, no credit card needed.