CoreAI Blog

The same model can be served by five different companies at five different speeds and prices. Here is how routing layers pick a provider, fail over when one dies, and why your chat rarely notices.

Sonar Pro Search retrieves. Sonar Reasoning Pro synthesizes. Knowing when to use each — and when to chain them — is the difference between raw citations and decision-ready output.

OpenRouter puts 400+ AI models from 60+ providers behind one API. Here is how the routing, marketplace, and pricing actually work — and when a no-code app beats an API key.

Three free CoreAI tools cover almost every email you will ever send. Here is which one to use when, plus prompt patterns that control tone and length so drafts sound like you.

Eleven free sitemap tools, one workflow: check, validate, extract, compare, analyze, generate, split, and wire your XML sitemap into robots.txt — the full SEO audit loop without paying for a single su

Poolside's Laguna XS 2.1 packs a 63.1% SWE-bench Multilingual score into a 33B mixture-of-experts model that costs pennies to run. Here is what it does well, where it falls short, and when to pick it

Three GPT-5.6 variants, three different writing strengths. Here's how to pick the right one for your workflow—and a repeatable method to prove it with your own prompts.

The free tier gives you 50 requests a day. Here is exactly where OpenRouter's limits sit, why 429 errors show up early, and the retry playbook that keeps your requests flowing.

A billion images in 53 days — that's how fast Google's Nano Banana line got adopted. Meanwhile OpenAI's GPT Image models still win at rendering actual readable text. Here's how to pick the right image

You.com went all-in on AI search and deep research reports. CoreAI went all-in on every model in one app. Here is the honest 2026 head-to-head.

Google's Gemini 3.5 Flash quietly became the default brain behind the Gemini app, AI Mode in Search, and half of Google's agent stack. It's fast, cheap, and beats its own Pro sibling on agentic benchm

Anthropic launched Claude Fable 5 as a new tier above Opus, briefly had it export-controlled by the US government, then opened it to the world on July 1. Here's what Fable 5 is, how it differs from My