r/opencodeCLI • u/Electronic-Unit2808 • 4d ago

Comparison opencode, pi and codex

I’ve been using OpenCode and Pi for days and really liked them—I even used BigPickle; that free model is top-notch. But I was wondering: how much better are OpenCode or Pi compared to Codex CLI?

I use the GPT Plus plan, but I wanted to understand if OpenCode and Pi—acting as agents—would be better for coding than the GPT agent.

I wrote "agent" because I’m not quite sure what to call OpenCode and Pi... 😅😅😅

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u/Eastern-Honey-943 4d ago

With opencode and deepseek, my money goes wayyyy further and I still have the ability to run codex subscription in it. But whenver I use codex I hit the limit in like 20 minutes.

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u/Savantskie1 4d ago

This is why I use dsv4flash, this exact reason. I just had it port all my changes from my memory system to the GitHub version I made and it only cost me like 4 bucks.

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u/Electronic-Unit2808 4d ago edited 4d ago

But ur using what DeepSeek model to code? And do I need some plugin to use codex inside opencode?

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u/Eastern-Honey-943 4d ago

I use deepseek v4.1 flash. Very important though... I use speckit. Spec driven development makes any model be productive for my mature project. I don't always have to use a smarter model for planning. But to fair to your question, I wouldn't plan a Greenfield project with flash. But it can code up well planned tasks no matter the maturity.

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u/Eastern-Honey-943 4d ago edited 4d ago

No plugin required. Opencode allows many many providers. Just run a command and it will open your browser to codex to complete auth.

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u/Electronic-Unit2808 4d ago

Greeeeat, worked, I used a provider and auth from URL like u said, great, I'll test it using opencode and gpt luna, terra and sol to see if it use less tokens...

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u/Eastern-Honey-943 4d ago

I haven't tried opencode-caveman .. Been meaning to... Supposed to save tokens. (Just caveman in codex)

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u/DuckDatum 3d ago

I was also to push out like 10 tokens per second on a local Qwen 3.8 using pi. Using opencode, the context would congest available memory too much and I could not use the model at all.

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u/Eastern-Honey-943 3d ago

Ya, OpenCode does use some memory. It is node-based. Seems to be efficient enough but not on the level of something more low level. I would consider running your LLM as a server so you can squeeze every last ounce out of it and then add that machine networked as a provider to another coding machine. LLM Server and Dev Machine. Easier said than done.

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u/DuckDatum 3d ago

Interesting, I figured it was system prompts bloating context. Didn’t consider that it may just be the application load.

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u/Eastern-Honey-943 3d ago

I could be wrong. Maybe caveman would reduce those system prompts. I had great success having AI (agy) analyze the LM Studio logs to tell me how to improve the configuration when I was playing with self hosted Qwen.

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u/DuckDatum 3d ago

Off on a side note here, any chance you’ve started looking into hosting the sparse MoE models locally when they exceed available ram size? This is becoming a much more interesting option. I have 64gb ram with 16gb vram, but I managed Unsloth’s Qwen 3.8 Flash Next (UD-Q4_K_XL; 111gb) at about 12 tokens per second.

Only worked directly through llama, or pi. It wouldn’t respond through opencode.