Claude Opus 4.8 vs Older Claude: What’s Really Changed?

If you’ve been following AI models for a while, you’ve probably noticed that Claude has gone through some serious upgrades. But what exactly makes the new Claude Opus 4.8 different from the older versions? Let’s break it down - simply, honestly, and without hype. What got better? Much honest Older Claude sometimes hallucinated answers. Opus 4.8 is far likely to admit uncertainty. For developers and researchers using the Claude API, this is a game-changer - you waste less time verifying false claims.