OpenAI TTS vs ElevenLabs vs Cartesia: Voice API Guide
If you are adding synthesized speech to a product and cannot tell which vendor actually fits, the OpenAI TTS vs...
OpenAI Whisper API: Speech-to-Text in Production Apps
If you have wired up a transcription endpoint, watched it work perfectly on a 30-second test clip, and then watched...
Promptfoo: Unit Testing Prompts Like Production Code
If you ship features built on LLM calls, you already know the uncomfortable part: nobody can tell you whether last...
DeepEval LLM Evaluation: 50+ Metrics for Production Apps
If you ship an LLM feature and your only quality check is reading a handful of outputs before deploy, you...
Self-Hosting Langfuse: LLM Observability on Your Own Infra
If your LLM application handles customer records, medical notes, or internal source code, sending every prompt and completion to a...
LangSmith Tracing: Debug LLM Apps End-to-End in Production
If you have ever stared at a wrong answer from your RAG pipeline and had no idea which of the...
Prompt Injection Defense: Patterns That Actually Work
Prompt injection defense is not optional once your LLM agent reads email, browses web pages, queries a document store, or...
Guardrails for LLMs: Input and Output Validation Patterns
If you have shipped an LLM feature to real users, you already know the uncomfortable part: the model is the...
Structured LLM Outputs With Instructor and Pydantic Models
If you have ever wrapped an LLM call in a try/except json.JSONDecodeError and hoped for the best, this guide is for you....