教程中心

OpenAI Assistants API 现状与迁移（2026）：官方已弃用、转向 Responses API。给出概念映射表（Thread→response 链 / Run 轮询→直接返回 / vector store 原样保留）、迁移五步法、双跑验证策略，以及"托管状态 API 要抽象隔离"的教训。

LangGraph 完全指南（2026）：把 Agent 建成状态机——State+reducer、条件边、checkpointer 持久化（多轮记忆/崩溃恢复/时间旅行）、interrupt 人工审批门、多 Agent supervisor 模式。含何时该用/不该用的诚实对照。

o3 vs Claude 3.5 vs Gemini 2.0 跑分怎么读（2026 回看）：三家各赢各的赛道（推理算力/编码/多模态性价比）。给出读任何跑分表的五条纪律（污染/成本列/任务对齐/方差/私有评测集）与映射到现役模型的选型路由。

pgvector 教程（2026）：在已有 PostgreSQL 上做向量检索——HNSW vs IVFFlat 选型、操作符对齐、完整 Python 管线、SQL 过滤与混合检索（专用向量库的付费功能在这就是一条查询）、内存估算与毕业阈值。

Build AI email automation with GPT-4 and Gmail API. Covers email classification, priority scoring, auto-draft generation, and routing—saving hours of inbox management weekly.

Complete TTS API comparison and tutorial. OpenAI TTS for production, ElevenLabs for voice cloning, streaming TTS for chatbots, and building a full voice AI assistant.

Complete Whisper API tutorial. Covers transcription with timestamps, translation, local faster-whisper, real-time recording, and meeting transcription with AI summary pipeline.

Complete LlamaIndex tutorial 2026. Covers VectorStoreIndex, persistent Qdrant storage, chat engines, sub-question decomposition, semantic chunking, metadata filtering, and streaming.

Complete guide to AI image generation APIs in 2026. Covers DALL-E 3 text accuracy, Flux photorealism, Stable Diffusion customization, batch generation, and choosing the right API.

Complete DSPy tutorial. Covers typed signatures, chain-of-thought reasoning, building RAG pipelines, and automatic optimization with MIPROv2 using training examples and metrics.

Complete Claude Opus 4 API tutorial. Covers system prompts, document analysis, tool use, vision, streaming, and cost optimization strategies for routing between Opus/Sonnet/Haiku.

Complete Gemini 2.0 API tutorial covering multimodal inputs, 2M token context, function calling, grounding with Google Search, and code execution.

Build an AI code review bot with GitHub Actions and GPT-4o. Analyzes every PR for security vulnerabilities, logic errors, and code quality. Block merges on critical security issues.

Complete Supabase AI tutorial. pgvector for semantic search, Edge Functions for AI inference, real-time streaming, Row Level Security for user-scoped RAG, and a Next.js chat component.

Complete Perplexity API guide. Covers sonar models, citations, streaming, multi-turn research, competitive intelligence, and hybrid web+private knowledge search.

Complete n8n AI automation guide 2026. Connect GPT-4 and Claude to Gmail, Slack, Notion, and 400+ apps. AI Agent nodes, RAG pipelines, webhook APIs, and self-hosting.

Complete Mistral AI API guide: Mixtral 8x22B, Mistral Large, Codestral for code, embeddings for RAG, function calling, JSON mode, and local deployment with Ollama.

Complete tutorial for building a full-stack AI SaaS application using Next.js 16, Clerk for authentication, Supabase for database, and OpenAI for AI features. Covers user management, usage metering, stripe billing, and deploying to production.

Comprehensive guide for teachers and educators on using AI tools in 2026. Covers lesson plan creation, differentiated instruction, AI-assisted grading, student engagement strategies, and addressing AI academic integrity concerns with practical policies.

Practical guide to AI applications in healthcare settings for 2026. Covers AI-assisted clinical documentation with ambient scribing, diagnostic decision support tools, patient communication automation, and regulatory compliance considerations for healthcare AI.

Complete guide to the Vercel AI SDK for building AI-powered Next.js applications in 2026. Covers streaming chat interfaces, structured data extraction with Zod, tool calling, multi-step agents, and production patterns for TypeScript developers.

Complete guide to using the OpenAI Whisper API for audio transcription in 2026. Covers real-time transcription, speaker identification, meeting summarization, automated action item extraction, and building a complete meeting intelligence system.

Complete tutorial for building multi-agent AI systems using CrewAI in 2026. Covers agent role design, task delegation, crew orchestration, tool integration, and building production workflows where multiple specialized AI agents collaborate on complex tasks.

Collection of 50 high-impact ChatGPT prompts for business professionals in 2026. Organized by department: sales, marketing, HR, operations, finance, and management. Each prompt includes customization variables and example outputs.

Tutorial for building a production semantic search application using Supabase's pgvector extension with OpenAI embeddings. Covers database setup, embedding generation, similarity search queries, and building a Next.js frontend with real-time search.

Complete guide to fine-tuning large language models using LoRA and QLoRA techniques in 2026. Covers dataset preparation, training configuration, hardware requirements, evaluation metrics, and deploying fine-tuned models to production.

Complete guide to using AI tools for SEO content strategy in 2026. Covers AI-assisted keyword research, search intent analysis, content brief creation, writing workflows, and avoiding AI content penalties while maintaining quality and authenticity.

Complete hands-on tutorial for building a RAG (Retrieval Augmented Generation) system from scratch in Python. Covers document chunking, embedding generation, vector storage, retrieval optimization, reranking, and building a production API.

Step-by-step tutorial for building an AI customer support agent using the OpenAI Assistants API. Covers creating assistants, uploading knowledge base files, implementing function calling, managing threads, and deploying to production.