Why This Is the Best Week Ever to Be an AI Buyer | Edition 275

Something unusual happened on Wednesday: every major AI lab put its best public model on the table at the same time. OpenAI opened its GPT-5.6 family to everyone, xAI made Grok 4.5 public, and Claude Sonnet 5 had just become the default for every Free and Pro user.

But you're probably not going to comparison-shop across labs. You open Claude or ChatGPT and stare at a dropdown of cryptic names. So here's the menu inside each app, in plain English.

Inside Claude (4 models): Haiku 4.5 ($1/$5 per 1M tokens) for quick, high-volume work. Sonnet 5 ($2/$10 to Aug 31) is the default for a reason — right for ~90% of daily work. Opus 4.8 ($5/$25) for hard multi-step projects. Fable 5 ($10/$50) for the genuinely toughest problems — a few times a month, not daily.

Inside ChatGPT (3 models): Luna ($1/$6) for volume. Sol ($5/$30) for hard problems — and it's now the #1 coding model on independent tests. Terra ($2.50/$15), the middle option? Independent testers found it never wins on value — Luna or Sol always beats it. Skip the middle.

The rule that works in every app: live in the default, drop to the cheap tier for volume, step up to premium only when the default visibly fails. And never assume the middle tier of any three-option menu earns its price.

The full edition — including the model-menu infographic and a free prompt that audits your AI spend for you — is on the site: https://aisupersimplified.com/p/275/why-this-is-the-best-week-ever-to-be-an-ai-buyer

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