After using Claude Opus 4.7… yes, performance drop is real.

After 4.7 was released, I gave it a try.

A few things that really concern me:

1. It confidently hallucinates.

My work involves writing comparison articles for different tools, so I often ask gpt and it to gather information.

Today I asked it to compare the pricing structures of three tools (I’m very familiar with), and it confidently gave me incorrect pricing for one of them.

I honestly don’t understand why an upgraded version would make such a basic mistake.

2. Adaptive reasoning feels more like a cost-cutting mechanism.

From my experience, this new adaptive reasoning system seems to default to a low-effort mode for most queries to save compute. Only when it decides it’s necessary does it switch to a more intensive reasoning mode.

The problem is it almost always seems to think my tasks aren’t worth that effort. I don’t want it making that call on its own and giving me answers without proper reasoning.

3. It does what it thinks you want.

This is by far the most frustrating change in this version.

I asked it to generate page code and then requested specific modifications. Instead of fixing what I asked for, it kept changing parts I was already satisfied with, even added things I never requested.

It even praised my suggestions, saying they would make the page more appealing…

4. It burns through tokens way faster than before.

For now, I’m sticking with 4.6. Thankfully, Claude still lets me use it.

submitted by /u/ObjectivePresent4162
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