In 2025, which backend—Node.js or Python—is superior for high concurrency, real-time workloads?

Compares event-driven concurrency, throughput, and latency for Node.js vs Python in modern backend environments.

• Node.js excels in real-time, I/O-bound systems—handling up to ~90,000 req/s and ~31ms latency using non-blocking, V8-optimized architecture. • Python remains strong for ML, data pipelines, and rapid prototyping using frameworks like FastAPI; async support (via asyncio) and parallelism improve scalability. Tags: backend, nodejs, python, performance, scalability, real-time