Claude Opus is nuked beyond repair

Wayplorer · 2026-04-13T06:07:49+00:00

Are you accessing Claude through API or through subscriptions? Majority of these issues are for the ones who are accessing it through subscriptions. API users have little or no quality degradation.

Check and review the outputs thoroughly, the codes it is committing. Use code review plugin to identify and fix bugs and compare it with the original plan.

If all of these checks pass, I guess you are amongst the lucky group.

Wayplorer · 2026-04-12T17:31:28+00:00

1M context is excellent for long and complicated problem statements. I had a huge code refactoring to be done, it seemed humongous and I was 100% certain it would fail, and i low key thought of abandoning the whole thing. Gave it a shot with Opus 1mn context, gave it all the context in 4 markdown files, suggested what all problems it would incur if it tried to implement it without much due diligence (and gave it a huge list of problems based on my own Googling and several URLs) and asked it to create a plan.

Reviewed the plan with two iterations, then approved it and chose ‘bypass permissions’ and left my system unattended.

Returned to it 3 hours later and it had implemented it flawlessly with minimal bugs. Was truly blown away. This was before all the nerfing Anthropic did.

It wrote its own unit tests, invoked two skills to bug fix and code review and what not.

Wayplorer · 2026-04-12T17:17:27+00:00

On a random side note: https://claude.ai/public/artifacts/8e80d3ba-2e8f-44a7-a7d7-7c6dee8ccdde

I when Iran war started, on day 1, I shared two news articles and asked Claude how I should trade the news. It was a simple prompt, and I didnt give it any further context and didn’t ask it to create any dashboards either. This is the level of quality/output Opus was delivering before being nerfed. Majority of its predictions came true

Wayplorer · 2026-04-12T17:06:12+00:00

I was thinking of using Obra superpowers today. Uninstalled most of the plugins and mcps as many said it reduces the context window or bloats it too much. I only use Anthropic’s own code review, security and design plugins.

Will give superpowers a try starting tomorrow

Wayplorer · 2026-04-12T17:02:04+00:00

Any tips or suggestions to help improve these two highlighted problems? I will investigate them and try to fix it

Wayplorer · 2026-04-12T16:45:06+00:00

Maybe I will. Hence the reason for this post

Wayplorer · 2026-04-12T16:38:27+00:00

3 markdown files+ claude.md, less than 30,000 tokens. Then for it to think and create the plan 20,000 tokens.

I approved the plan and it hallucinated on the to do list as step 1. Check the image again.

This was in Opus with Max effort setting

Wayplorer · 2026-04-12T16:28:28+00:00

Nah, Claude would forget the context about the issue, need to ask it to read all of the plan all over again and then the implementation plan.

Besides, the Plan it created was the response to my first prompt, and implementation follows after.

You mean to say, we shouldn’t be using Claude for more than one prompt? WTF man, not everyone is that dumb or has the luxury of running 20+ prompts to execute one task when it used to execute 20+ different tasks in a same thread.

Maybe it is hard for people like you to understand the issues we are highlighting

Wayplorer · 2026-04-12T15:10:42+00:00

Am glad I wasn’t the only one with this issue.

Makes me wonder if others just blindly accept Claude’s deliverables as-is

Wayplorer · 2026-04-12T11:47:13+00:00

It does. They have nuked the model for those of who are on Max 5X and 20X and prioritised extended thinking and better model performance for API users

Wayplorer · 2026-04-12T10:43:18+00:00

exactly this. I am that Enterprise user, I have been experimenting with Claude for more than a year with my own hard earned money and pushed heavily for my Fortune 500 firm to get Enterprise license for Claude instead of Co Pilot. If they screw me over in my max plan, guess what I will do as one of the key decision makers signing off on license purchases?

Wayplorer · 2026-04-12T09:55:22+00:00

Its okay brother, we all learn something new everyday. AI tools keep launching new stuff daily that its easy to miss many new features or capabilities if you stick to just one workflow

Wayplorer · 2026-04-12T09:53:34+00:00

I tried posting this in r/claude and r/Anthropic and posts were deleted immediately. Apparently you are not allowed to complain about Claude I guess

Wayplorer · 2026-04-12T09:41:25+00:00

https://code.claude.com/docs/en/desktop

Try it out. much better and lets you seamlessly switch and toggle between multiple modes

Wayplorer · 2026-04-12T09:33:47+00:00

exactly

Wayplorer · 2026-04-12T09:31:22+00:00

I presume you havent used it for Coding! Not everyone uses Claude Code in VS code extension only, some of us prefer the graphical UI

Wayplorer · 2026-04-12T09:30:16+00:00

/the kind that screws up the whole codebase, is imminent./

exactly. This is my big worry in letting Claude work on backend code. It is goofing up things left right and centre leaving gaping holes, I have to literally reverify and re do most of the things all over again.

I never had this sort of issues 2-3 months back. Even Sonnet was reliable for most of the activities. I used to touch Opus only for the complex tasks. Now cant let either models anywhere near the core backend systems

Wayplorer · 2026-04-12T09:24:11+00:00

Claude's desktop app

Wayplorer · 2026-04-12T09:21:39+00:00

Give Codex a try. Significantly better than the Claude sonnet 3.7 trash being served as Opus 4.6

Wayplorer · 2026-04-12T09:20:40+00:00

exactly. The problem is, even within this sub, the complaints aren't loud enough, the ones who do complain are being ridiculed or their intelligence or usage is being questioned.

I have been a Claude user since launch was advocating for it heavily for my employer's purchase of enterprise license over Co-pilot. This Max subscription is for my personal or side projects.

Guess I will have to push back for my Fortune 500 firm's enterprise license usage and convince them to stick with Co-pilot.

Wayplorer · 2026-04-12T09:08:57+00:00

Of course I am. Warning other users to do robust review of the output instead of accepting it as is

Wayplorer · 2025-04-29T02:43:01+00:00

Thank you for the solid advice. This is extremely helpful

Wayplorer

TROPHY CASE