Top 5 AI API Providers for Small Teams in 2026 (Engineer's Honest Take)

I have been running inference workloads across these platforms for a while. Here's what actually matters once you're past the docs and into production. 1. Groq The LPU speed is not marketing. GPT-OSS 20B at 1,000 tokens/second and Llama 4 Scout at 750 tokens/second are real numbers you'll see in production. First token latency sits around 0.45s on Llama 4 Scout which is genuinely impressive for the model size. The limitation people don't talk about enough: they serve a curated set of 12 models and that's it. No.