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US OPT / target-school / fall-recruiting timelines, explained in one free guide: read it free →

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Real Projects · Try Online

Every course tech stack lands in a real, clickable project — Agent eval, LLM eval, reinforcement learning, RAG… here’s your answer to the interviewer’s “what have you actually built?”

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Agent Evaluation (Learning Material)

AgentEvalFailure Attribution

Tool-call trajectory evaluation for Agents plus automatic failure attribution — Big-Tech Agent-eval methodology as a runnable platform.

Try it online →
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LLM Evaluation Platform

Hallucination RateRAGLLM-as-Judge

Hallucination rate, RAG faithfulness, multi-sample LLM-as-Judge and paired significance tests — the full eval pipeline in one click.

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🧠

Agentic RL

Reinforcement LearningMemory SystemA-MEM

A memory Agent trained to decide when to retrieve and when to hold back — the full SFT → multi-step TRACE RL flow.

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AI English Diagnostic Assistant

AI AppSmart Diagnosis

AI-driven English proficiency diagnosis with an instant report — a full LLM application build end to end.

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🎬

Novel-to-Drama Studio

AgentScript Generation

AI script generation and novel-to-drama platform — a content pipeline from text to storyboard.

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📈

A-Share Strategy Lab

Data AnalysisStrategy

A-share strategy research and experimentation platform with visualized strategy signals.

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Career Clarity Assistant

AgentDecision-Making

AI career guidance for big-tech engineers — a decision-making assistant for crossroads moments.

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XHS Course-Selling Manager

ContentManagement

Content management for selling courses on Xiaohongshu — courses, copy and assets in one place.

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Farm-Sell Copy Generator

CopywritingGeneration

Xiaohongshu copywriting helper for farm sellers — ready-to-post copy in one click.

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🐾

Pet Health AI Reader

MultimodalGLM-4VH5

Upload a pet photo — GLM-4V 6-dimension health score, emotion analysis and a personality card, instantly shareable.

Try it online →
🎬

AI Drama Studio

MultimodalText-to-VideoFull Pipeline

One sentence becomes a full AI drama — story, frames, characters, video, voice-over and final cut, fully automated.

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🛠️

AI Infra Learning Material

LinuxK8sAI-GPU

Interview quiz panel across Linux, networking, containers, K8s, CI/CD, monitoring, middleware, architecture, AI-GPU and IaC — practice by Big-Tech focus area.

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🎨

Qwen-Image-Edit Learning Material

MultimodalMMDiTImage editing

Interview quiz panel for the Qwen-Image-Edit image-editing model — 106 knowledge points across 21 tracks, from architecture to deployment, competitor comparisons and a reading of the base-model tech report.

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Free Guides · Read Online Now

No sign-up needed: high-frequency interview points, RAG / Agent system-design essentials, and Big-Tech talent-program intel. Always-free long reads, updated continuously.

These guides cover the questions — but interviewers dig into your projects.
Want me to look at your résumé and tell you what to change? DM me on Xiaohongshu. Want the structured version instead? See the courses →

DM me about your résumé →

Tech Deep Dives

Songshu AI keeps sharing AI career-switch guides on Xiaohongshu — covering product → AI and data analysis → AI transitions, plus real mock interviews and full offer-process coaching.

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Live demo projects
2
Tsinghua University Press books
6
Structured courses
8
Free in-depth guides

Why Songshu AI

Many LLM courses exist. The difference from 'note-compilation' courses is clear in this one table.

Aspect Free notes / rote Other paid courses Songshu AI
Content sourcePatched-together notesCompiled by instructorsReal interviews, from the hiring side
Q&A explanationsAnswers onlyAnswers + some explainInterviewer view: 'why ask' + scoring points
Resume help2× 1-on-1 review
Mock interviewReal 1-on-1 mock
UpdatesWheneverSemi-annualMonthly, on 2026 trends
InstructorStudents / self-taughtWorking engineersSenior algorithm engineer · sits on real hiring loops

Who teaches

A front-line senior algorithm engineer who sits on real hiring loops. Your teacher is the person on the other side of the interview table.

兔老板

About the Blogger

CAS PhD · Senior Algorithm Engineer

Lead editor of "图深度学习从理论到实践" and lead translator of "快速部署大模型:LLM 策略与实践" (both Tsinghua University Press), writer behind the "兔老板工作室" official account, and a long-time technical interviewer for hiring at big-tech and startups.

Long experience on the hiring side taught him exactly what lands an offer and what loses points. Those real-world signals are systematically distilled into the courses.

Learning Path

Mix freely by your goal — drill one topic or study systematically.

Step 1 · LLM Foundations

Transformer / Attention / pretraining / major open-source families. Cover 80% of frequent basics in 1-2 weeks.

Step 2 · Pick an Application

RAG / Agent / Prompt engineering — pick 1-2 by target role. Ship an industry-grade demo in 2-3 weeks.

Step 3 · Advanced Core

Fine-tuning / inference optimization / distributed training. Core for algorithm roles at top companies.

Step 4 · Interview Prep

Resume + Q&A drills + mock interviews — turn "knowing" into "explaining well" and land the offer.

FAQ

The few things people ask before signing up — answered upfront.

How should I prepare for an LLM / AI interview?

Structured courses covering the five core tracks — LLM fundamentals, RAG, Agents, fine-tuning and inference optimization — plus 200+ worked interview questions, two 1-on-1 résumé reviews and one full mock interview, all explained from the interviewer's side.

See how the courses work →

Is there any free LLM interview material?

Yes. Follow 「兔老板工作室」 on Xiaohongshu and DM the word “资料” — you get the curated interview PDF free, permanently, with no strings and no phone number required.

Who teaches?

A CAS PhD and senior algorithm engineer at a big-tech company; lead editor of “图深度学习从理论到实践” and lead translator of “快速部署大模型:LLM 策略与实践”, both from Tsinghua University Press. He sits on real hiring loops and writes the 「兔老板工作室」 official account.

Who is the course for?

Job seekers preparing systematically for LLM / AI interviews, and developers who want real projects on their résumé while building an LLM application from scratch.

RAG, Agent, fine-tuning or inference optimization — which course?

The five tracks are RAG, Agent development, LLM fine-tuning & alignment, Transformer & inference optimization, and the résumé + mock-interview 1-on-1. With no background, start from RAG or Agent; targeting an algorithm role, focus on fine-tuning and inference optimization. The full-stack course covers all of it if you want one systematic run at an offer.

Compare the six courses →

What does an LLM interview actually cover?

Typically: LLM fundamentals and Transformer internals, RAG, Agent applications, fine-tuning and alignment, inference optimization and deployment — plus deep dives into your own projects and coding ability. The courses are split along exactly these lines, with 200+ worked questions to cover them systematically.

Are there free AI tools I can try online?

Several: AI Infra learning material — graded practice with instant explanations across Linux, networking, containers, Kubernetes, CI/CD, monitoring, middleware, architecture, AI-GPU and IaC; Pet Health AI — upload a photo and get a health and mood report; and an AI short-drama studio that turns one sentence into a full episode. Agent- and LLM-evaluation platforms are also open to try.

Still have a specific question? DM me on Xiaohongshu →

Systematic Courses · via Xiaohongshu

Every course includes real projects and a full trial; try before you decide. DM 兔老板工作室 on Xiaohongshu to consult or enroll.

🇺🇸 US-track / OPT: 1-on-1 with US-style résumé + full mock interview in English (remote, timezone-friendly) 🇨🇳 China-track / autumn recruiting: 1-on-1 with China-style résumé + CN project framing + full mock interview in Chinese
📘 大模型面试突围·全栈班 🔍 RAG 检索增强实战 🤖 AI Agent 实战班 ⚙️ LLM 微调与对齐 ⚡ Transformer & 推理优化 🎯 简历 + 模拟面试 1v1

Want to talk about your career switch / interview? Find me on XHS

Materials, question banks and long reads are all free; for courses, DM us on Xiaohongshu to consult and try a trial before buying — no paywall and no sign-up here.

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