[j_bum]

As someone who finds a huge amount of enjoyment in developing using Opus 4.6 in Claude code, I’d love to know what other harnesses people use that deliver the same experience as CC. CC is a vibe-coded mess, but it works very well for me.

I do a lot of work in R and find codex (5.4 & 5.3-codex) just totally drop the ball with R. Anthropic’s models are far better with R, so I use them.

But I do wonder how much the harness affects performance.

Would GPT-5.3-Codex perform just as well if it was plugged into CC?

[lsaferite]

CC is riddled with bugs and poor UI/UX. It's effective in spite of that. Just think what a well-designed agent would do in place of that. I don't use other coding agents currently because the subscription with CC gets me what I need and I don't want to pay retail token rates. I would 100% prefer an open source agent so I could fork it and tweak it to my needs.

[adampunk]

Every time I hear someone say that software is successful in spite of something I find that looking harder shows some interesting choices.

If this software succeeds despite the manifest failures that are pointed out here, that’s a sign that something is working. We could argue that something is just access to the model, but plenty of other companies sell that and they don’t seem to do as well.

[lsaferite]

In this case it's because they gate subscription access to their agent. If not for that, I wouldn't be using Claude Code. I like Anthropic overall, but it disappoints me that they didn't make CC open source and that they insist on tying subscription use to CC.

[voidfunc]

I used OpenCode and find it works just as well or better than CC.

I dont think CC has a moat other than their model but their model is also available through Copilot.

[_menelaus]

Have you found any cheaper models to work well with OpenCode? Like any of the Chinese models?

[voidfunc]

Haven't tried, corporate pays for use on both work and personal projects.

[Alifatisk]

I use Z.ai GLM-5.1 with Opencode, haven't had any issues.

[beacon294]

Pi

[Alifatisk]

No one is going to find out exactly what you mean. I'll add this link for reference, https://lucumr.pocoo.org/2026/1/31/pi

[beacon294]

It was my intent but it's also fine to be more direct.