OpenAI Chat Completions API Deep Dive: Messages, Roles, and Parameters
Understand the message format, system/user/assistant roles, temperature, max_tokens, top_p, and other parameters that control OpenAI chat completion behavior.
11 min read
Agentic AI & LLMs
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Agentic AI & LLMs
Agentic AI, LLM engineering, and the models behind modern automation — multi-agent systems, LLM evaluation and comparisons, RAG, fine-tuning, AI infrastructure, security, and production AI engineering.
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OpenAI Embeddings API: Creating Vector Representations of Text
Learn how to generate text embeddings with OpenAI's API, understand embedding dimensions, implement batch embedding, and build practical search and similarity applications.
11 min read
OpenAI Fine-Tuning API: Training Custom Models Step by Step
A complete walkthrough of fine-tuning models through the OpenAI API, covering data preparation in JSONL format, file upload, training job creation, evaluation, and deploying your custom model.
13 min read
OpenAI Function Calling: Letting LLMs Interact with Your Code
Master OpenAI's function calling feature to let language models invoke your Python functions, parse structured arguments, and build tool-augmented AI applications.
12 min read
OpenAI JSON Mode and Structured Outputs: Reliable Data Extraction
Master OpenAI's JSON mode and structured outputs to extract reliable, schema-validated data from LLMs with guaranteed format compliance and Pydantic integration.
12 min read
OpenAI SDK for TypeScript: Building Chat Completions and Tool Calling in Node.js — Openai node.js sdk 4.x chat.completions.create example
Openai node.js sdk 4.x chat.completions.create example: A hands-on guide to the official OpenAI TypeScript SDK. Learn how to set up the client, create chat completions, implement function calling with tool definitions, and stream responses in a No…
11 min read
OpenAI Structured Outputs: Using response_format with JSON Schema — Openai responses api response_format json_object
Openai responses api response_format json_object: master OpenAI's structured outputs feature with json_schema response format, strict mode, refusal handling, and complex schema definitions. Get guaranteed valid JSON from GPT models every time.
12 min read
OpenAI Vision API: Building Applications That Understand Images
Learn how to use OpenAI's Vision API to analyze images, send base64-encoded and URL-based images, build multi-modal prompts, and create practical image understanding applications.
12 min read
OpenTelemetry for AI Agents: Distributed Tracing Across Agent Workflows
Learn how to instrument AI agent systems with OpenTelemetry for end-to-end distributed tracing, including span creation, custom attributes for LLM calls, and trace context propagation across multi-agent pipelines.
14 min read