CoreAI Blog

ChatGPT Plus is $20. So is Claude Pro. And Perplexity Pro. And Google AI Pro is a penny under. Stack the tools a power user actually wants and you are at $80 a month — here is the full, verified 2026

DeepSeek V4 Pro and V4 Flash solve different problems — but which one wins for your workflow? Here's how to test both on CoreAI and stop guessing.

Moonshot AI's Kimi K2.7 Code and Kwaipilot's KAT-Coder-Pro V2.5 launched a month apart with nearly identical prices and very different personalities. We compare specs, benchmarks, and real workflows —

CoreAI's five free developer tools handle the tasks you'd rather not: regex from English, SQL with your schema, code explanation, and realistic mock JSON. Worked examples inside.

We tested ten ChatGPT alternatives with the same prompts and real July 2026 prices: Claude, Gemini, Perplexity, Grok, Poe, Kimi, You.com, ChatHub, Merlin, and CoreAI. Here is which one to actually pic

Prompt engineering in four levers — role, context, format, constraints — with before/after examples and three free tools that build, optimize, and outline your prompts for any AI model.

Kimi K3, GPT-5.6, Claude Sonnet 5 — the models topping the leaderboards are not developer-only. A step-by-step guide to chatting with all of them in one app, no API key in sight.

Z.ai GLM 5.2 thrives when you treat prompts like contracts, not questions. Here's how to unlock its best work for long-context extraction, vision tasks, and structured outputs—and when GLM 5.1 is the

One router account or a key per provider? A developer's comparison of OpenRouter vs direct APIs on cost, rate limits, and lock-in — plus the no-code third option.

CoreAI's free AI Resume Writer and Cover Letter Generator get you a strong draft fast. Here is the workflow, the ATS rules, and the honest list of things you must edit yourself.

Z.ai's GLM 5.2 brings a usable 1M-token context window and 131K-token outputs to an MIT-licensed open-weight model at standard-tier prices. Here is what it actually does well, how it compares, and whe

Eight free FAQ generators — for websites, PDFs, DOCX, Google Docs, and Notion — plus the FAQPage schema workflow that turns ordinary pages into People Also Ask and featured-snippet winners.