Claude

Anthropic's Claude Family

6 questions

From Claude 1 to the current generation — Haiku, Sonnet, Opus.

Watch Claude Opus work through a multi-step constraint problem with visible reasoning before answering.

I need to schedule 5 meetings today. Meeting A must be before B. C can't happen between 10am and noon. D must be at least 90 minutes after A. E is 30 minutes and must be the last meeting of the day. All meetings are 60 minutes unless noted. Work day is 9am-5pm. Give me one valid schedule and explain any constraints that are tight.

Use Claude's tendency toward honest self-review to catch weak writing before it ships.

Here's a cold email draft. First, write three specific, named critiques of it — things that would make a reader roll their eyes or stop reading. Then rewrite it applying those critiques.

Draft: 'Hi! I came across your company and was really impressed. I'd love to hop on a quick call to learn more about your needs. Are you free sometime this week?'

Paste a short function and ask Claude for a diff-style review — it's particularly good at spotting edge cases politely.

Review this function as if you're a senior engineer on my team. Point out bugs, edge cases I missed, and places the code is harder to read than it needs to be. Be direct but kind.

function avgAge(users) {
  let total = 0;
  for (let i = 0; i < users.length; i++) {
    total += users[i].age;
  }
  return total / users.length;
}

Compare side-by-side how Haiku 4.5 and Opus 4.7 handle the same request — feel the speed and quality tradeoff yourself.

Explain what a mortgage is to a 14-year-old in under 150 words. Use one concrete example with round numbers.