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Gemini 4 Argon

1699 points · 1187 comments · bradleyg223

  1. taylorfinley · · focus · HN ↗
    Ten days ago I had an experience with Gemini 3.8 flash that made me wonder if I was being routed to a different model under test. I was trying to use rocm with llama.cpp on my 128gb Strix Halo but could only get it to run Vulkan. I pasted the error message into agy and it proceeded to attach GDB to my GPU driver, reverse-engineer the kernel queue ioctl interface, and author an LD_PRELOAD C shim to get ROCm llama.cpp working on my Strix Halo. My jaw was hanging open the whole time.

    Edit to add the fix: <a href="https:&#x2F;&#x2F;gist.github.com&#x2F;birep&#x2F;6f2c8d490c7a29820997d57bd654c351" rel="nofollow">https:&#x2F;&#x2F;gist.github.com&#x2F;birep&#x2F;6f2c8d490c7a29820997d57bd654c3...

    1. spankalee · · focus · HN ↗
      3.8 Flash is just quite good, and so is the Antigravity harness.

      I use a mix of Fable 5.1, Opus 5.5, and Gemini 3.8 Flash and Gemini holds it&#x27;s own. Especially in writing, frontend, and sysadmin work. agy for configuring a NixOS system has been truly incredible.

      1. mapontosevenths · · focus · HN ↗
        Even if agy was the best (it&#x27;s not, and is missing basic features) you wouldn&#x27;t rather have a choice?

        I cancelled Ultra because they forced me into their harness like I should adapt to them, rather than the other way around.

        1. drusepth · · focus · HN ↗
          What basic features are missing from agy? I&#x27;ve been using it and cli-cc + web-cc for months (among a few other random harnesses to test here and there) and they all seem roughly comparable to me.

          I actually just cancelled Ultra also because I couldn&#x27;t subscribe to a YouTube Family plan while I had it active (Google... :[) but trying to use Codex as a replacement while I testdrive Astra makes me yearn for agy again.

          1. sarjann · · focus · HN ↗
            Auto mode?
            1. KeplerBoy · · focus · HN ↗
              It absolutely has auto mode.
              1. smartbit · · focus · HN ↗
                agy cli does not have auto mode. I&#x27;ve tried and tried and tried to work with agy cli sandbox-mode and just failed.

                  agy --dangerously-skip-permissions
                in my experience is the only workable solution that doesn&#x27;t ask confirmation for every step. And I hate working in YOLO mode. Seemingly the Antigravity GUI had some features added in a recent release, but a) I don&#x27;t want to work with the GUI and b) it was poorly implemented as I couldn&#x27;t get it to work. VS Code plugins are allowed with subscriptions, but is not the CLI experience of Claude Code I want.

                gemini-cli supported &#x27;pre-write diff tabs&#x27; (y&#x2F;n) in external editors like vscode. In Claude Code I heavily use &#x27;pre-write diff tabs&#x27; for documentation and miss it sincerely in agy cli.

                IMHO Gemini 3.8 flash is fast and good enough, but the agy-suite is below par to say it nice. Someone else in this thread calls agy a terrible harness which is probably more accurate.

                1. Kostchei · · focus · HN ↗
                  PSA, in the agy ui there is a button. It was very annoying until i set it. Slight downside- if I ask it to write a planning doc it will write the doc and then implement it without asking. but as long as you know that, no problem....
                  1. smartbit · · focus · HN ↗
                    do you mean?

                      accept-edits
                    also available with shift-tab [0]. That is not related to executing commands, only to allowing agy edit files. Unless you set Turbo-mode == yolo-mode, agy prompts a zillion times.

                    I&#x27;m referencing this but can&#x27;t see change in daily work: v2.14.0 (September 15, 2026) &quot;New Permissions System&quot; [1]

                    Details: Introduced the new unified permissions system, presets (Default, Request Review, Turbo), syntax-highlighted permission requests, and restructured the settings under Global Permissions and project-level Inherit Global.

                    [0] <a href="https:&#x2F;&#x2F;antigravity.google&#x2F;docs&#x2F;cli&#x2F;modes&#x2F;#available-modes" rel="nofollow">https:&#x2F;&#x2F;antigravity.google&#x2F;docs&#x2F;cli&#x2F;modes&#x2F;#available-modes [1] <a href="https:&#x2F;&#x2F;antigravity.google&#x2F;docs&#x2F;changelog&#x2F;" rel="nofollow">https:&#x2F;&#x2F;antigravity.google&#x2F;docs&#x2F;changelog&#x2F;

                2. Phineas_here · · focus · HN ↗
                  have you had any experiences where the agent just made unintended edits to the code as you tried to make it run auto? cuz I&#x27;m always skeptical about letting it go auto but there&#x27;s not much I can do when it gets repetitive
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