alt Hacker NewsI'm only waiting for OpenAI to provide an equivalet ~100 USD subscription to entirely ditch Claude.
Opus has gone down the hill continously in the last week (and before you start flooding with replies, I've been testing opus/codex in parallel for the last week, I've plenty of examples of Claude going off track, then apologising, then saying "now it's all fixed!" and then only fixing part of it, when codex nailed at the first shot).
I can accept specific model limits, not an up/down in terms of reliability. And don't even let me get started on how bad Claude client has become. Others are finally catching up and gpt-5.3-codex is definitely better than opus-4.6
Everyone else (Codex CLI, Copilot CLI etc...) is going opensource, they are going closed. Others (OpenAI, Copilot etc...) explicitly allow using OpenCode, they explicitly forbid it.
This hostile behaviour is just the last drop.
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> Opus has gone down the hill continously in the last week
Is a week the whole attention timespan of the late 2020s?
Opus 4.6 genuinely seems worse than 4.5 was in Q4 2025 for me. I know everyone always says this and anecdote != data but this is the first time I've really felt it with a new model to the point where I still reach for the old one.
I'll give GPT 5.3 codex a real try I think
It's the most overrated model there is. I do Elixir development primarily and the model sucks balls in comparison to Gemini and GPT-5x. But the Claude fanboys will swear by it and will attack you if you ever say even something remotely negative about their "god sent" model. It fails miserably even in basic chat and research contexts and constantly goes off track. I wired it up to fire up some tasks. It kept hallucinating and swearing it did when it didn't even attempt to. It was so unreliable I had to revert to Gemini.
No offense, but this is the most predicable outcome ever. The software industry at large does this over and over again and somehow we're surprised. Provide thing for free or for cheap, and then slowly draw back availability once you have dominant market share or find yourself needing money (ahem).
The providers want to control what AI does to make money or dominate an industry so they don't have to make their money back right away. This was inevitable, I do not understand why we trust these companies, ever.
No developer writes the same prompt twice. How can you be sure something has changed?
I’m unsure exactly in what way you believe it has gone “down the hill” so this isn’t aimed at you specifically but more a general pattern I see.
That pattern is people complaining that a particular model has degraded in quality of its responses over time or that it has been “nerfed” etc.
Although the models may evolve, and the tools calling them may change, I suspect a huge amount of this is simply confirmation bias.