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OpenCode – Open source AI coding agent

opencode.ai

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Re: OpenCode – Open source AI coding agent

#511

Post by _flux »

yoz-y wrote: post #428
petcat wrote: post #408

Earlier quoted context omitted.

> It's more accessible to contributors. What would make go more "accessible to contributors" than Rust?

Go is a language one can learn and become functional in an afternoon. Rust is way more involved.

Frankly I don't think one even needs to learn it, if you know a bunch of other languages and the codebase is good. I was able to just make a useful change to an open source project by just doing it, without having written any lines of Go before. Granted the MR needed some revisions.

Rust is my favorite, though. There are values beyond ease of contribution. I can't replicate the experience with a Rust project anymore, but I suspect it would have been tougher.

Re: OpenCode – Open source AI coding agent

#512

Post by tmstieff »

trq_ wrote: post #509
jmmv wrote: post #374

Earlier quoted context omitted.

> and (partly as a result) it's fairly resource inefficient (often uses 1GB of RAM or more. For a TUI). That's (one of the reasons) why I'm favoring Codex over Claude Code. Claude Code is an... Electron app (for a TUI? WTH?) and Codex is Rust. The difference is tangible: the former feels sluggish and does some odd redrawing when the terminal size changes, while the latter definitely feels more snappy to me (leaving a…

Claude Code is not an electron app.

It does use React for rendering the terminal UI.

Re: OpenCode – Open source AI coding agent

#513

Post by plagiarist »

bjackman wrote: post #388
logicprog wrote: post #107

OpenCode was the first open source agent I used, and my main workhorse after experimenting briefly with Claude Code and realizing the potential of agentic coding. Due to that, and because it's a popular an open source alternative, I want to be able to recommend it and be enthusiastic about it. The problem for me is that the development practices of the people that are working on it are suboptimal at best; they're con…

That is very disappointing coz I've been wanting to try an alternative to Gemini CLI for exactly these reasons. The AI is great but the actual software is a buggy, slow, bloated blob of TypeScript (on a custom Node runtime IIUC!) that I really hate running. It takes multiple seconds to start, requires restarting to apply settings, constantly fucks up the terminal, often crashes due to JS heap overflows, doesn't respe…

Claude will also happily write a huge pile of junk into your home directory, I am sad to report. The permissions are idiotic as well, but I always use it in a container anyway. But I have not had it crash and it hasn't been slow starting for me.

Re: OpenCode – Open source AI coding agent

#515

Post by Robdel12 »

robbie-c wrote: post #460
Robdel12 wrote: post #448

Earlier quoted context omitted.

You’re right, Anthropic is quite a bit worse https://www.washingtonpost.com/technology/2026/03/04/anthrop...

Wait - are you missing all the context on this? Anthropic pushed back against this hard, there was a whole back and forth. I'm on mobile and can't look it up for you atm but if you google about this scenario, Anthropic definitely come out of this looking a lot better than OpenAI and xAI

Did you read the article? Or are you just replying?

Anthropic has literally been working with the DoD and Plantair for 2 years now. They were key to the Iran invasion.

If thats “looking better”, keep it.

Re: OpenCode – Open source AI coding agent

#516

Post by [deleted] »

Implicated wrote: post #506
jazzypants wrote: post #495

Earlier quoted context omitted.

No, they are describing a typical experience with the two apps. Just open both apps, run a few queries, and take a look at the difference in resource management yourself. It sounds like you have a bias of Claude Code over Codex.

Uh, it sounds like you're having trouble understanding that people in this thread are talking about two wildly different "claude code" applications. Those who are claiming the resources issues don't apply to them are referring to the cli application, ie: `claude` and those are saying things like "Just open both apps..." are surely referring to their GUI versions.

[deleted]

Re: OpenCode – Open source AI coding agent

#517

Post by olmo23 »

Yokohiii wrote: post #432
yoz-y wrote: post #428

Earlier quoted context omitted.

Go is a language one can learn and become functional in an afternoon. Rust is way more involved.

To vibe coders it doesn't matter, right?

If you already know some php python javascript and/or c, you can pretty much just wing with Claude code.

Re: OpenCode – Open source AI coding agent

#518

Post by jazzypants »

Implicated wrote: post #506
jazzypants wrote: post #495

Earlier quoted context omitted.

No, they are describing a typical experience with the two apps. Just open both apps, run a few queries, and take a look at the difference in resource management yourself. It sounds like you have a bias of Claude Code over Codex.

Uh, it sounds like you're having trouble understanding that people in this thread are talking about two wildly different "claude code" applications. Those who are claiming the resources issues don't apply to them are referring to the cli application, ie: `claude` and those are saying things like "Just open both apps..." are surely referring to their GUI versions.

No, I've never used the GUI version. I literally just had to close and reopen the terminal running the Claude Code CLI on my Mac yesterday because it was taking too many resources. It generally happens when I ask Claude to use multiple sub agents. It's an obvious memory leak.

Re: OpenCode – Open source AI coding agent

#519

Post by xpe »

sebastianconcpt wrote: post #503

OpenCode is the almost good IDE I need. What does well: helps context switching by using one window to control many repos with many worktrees each. What can do better? It's putting AI too much in control? What if I want to edit a function myself in the workspace I'm working on? or select a snippet and refer that in the promp? without that I feel it's missing a non-negotiable feature.

Do you think the design direction of “chat first” is compatible with editor first? I don’t know if any tools do both well. Seems like a fork in the road, design wise.

Re: OpenCode – Open source AI coding agent

#520

Post by badlogic »

bjackman wrote: post #388
logicprog wrote: post #107

OpenCode was the first open source agent I used, and my main workhorse after experimenting briefly with Claude Code and realizing the potential of agentic coding. Due to that, and because it's a popular an open source alternative, I want to be able to recommend it and be enthusiastic about it. The problem for me is that the development practices of the people that are working on it are suboptimal at best; they're con…

That is very disappointing coz I've been wanting to try an alternative to Gemini CLI for exactly these reasons. The AI is great but the actual software is a buggy, slow, bloated blob of TypeScript (on a custom Node runtime IIUC!) that I really hate running. It takes multiple seconds to start, requires restarting to apply settings, constantly fucks up the terminal, often crashes due to JS heap overflows, doesn't respe…

you can use subscriptions with pi.
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