flo2 blog

Best LLM Gateway in 2026: flo2 vs Vercel AI Gateway vs Cloudflare vs Portkey

A fair buyer's guide to LLM / AI gateways — Vercel, Cloudflare, Portkey, Helicone, LiteLLM, OpenRouter and flo2 — across pricing, markup, routing, caching and cost accounting.

LLM Fallback and Racing: Build an LLM API That Never Goes Down

Retries, fallback chains, load balancing and racing — how to design a production LLM API that survives provider outages, rate limits and slow-tail latency.

The Best OpenRouter Alternative in 2026: Bring Your Own Keys, Zero Markup

Looking for an OpenRouter alternative? Compare resold-credit aggregators vs bring-your-own-key, zero-markup gateways on pricing, transparency, routing and lock-in.

The Cheapest LLM API in 2026: How to Actually Pay Less per Token

There is no single cheapest LLM API — only the cheapest model per task. The 2026 price tiers and the routing, caching and BYOK tactics that cut your LLM bill.

What Is an LLM Gateway? A Developer's Guide for 2026

An LLM gateway puts one API in front of every model provider — routing, fallback, caching and cost accounting. What it is, the problems it solves, and how to choose one.