Show HN: I put Codex and Claude in a tank arena; Codex is winning 55% so far

mazzystar1 pts0 comments

I put Codex and Claude into a tank arena. Codex is winning 55% so far : codexjump to contentmy subreddits<br>edit subscriptions<br>popular<br>-all<br>-users<br>| AskReddit<br>-pics<br>-funny<br>-movies<br>-gaming<br>-worldnews<br>-news<br>-todayilearned<br>-nottheonion<br>-explainlikeimfive<br>-mildlyinteresting<br>-DIY<br>-videos<br>-OldSchoolCool<br>-TwoXChromosomes<br>-tifu<br>-Music<br>-books<br>-LifeProTips<br>-dataisbeautiful<br>-aww<br>-science<br>-space<br>-Showerthoughts<br>-askscience<br>-Jokes<br>-Art<br>-IAmA<br>-Futurology<br>-sports<br>-UpliftingNews<br>-food<br>-nosleep<br>-creepy<br>-history<br>-gifs<br>-InternetIsBeautiful<br>-GetMotivated<br>-gadgets<br>-announcements<br>-WritingPrompts<br>-philosophy<br>-Documentaries<br>-EarthPorn<br>-photoshopbattles<br>-listentothis<br>-blog

more "

codexcomments

Want to join? Log in or sign up in seconds.

limit my search to r/codexuse the following search parameters to narrow your results:<br>subreddit:subredditfind submissions in "subreddit"author:usernamefind submissions by "username"site:example.comfind submissions from "example.com"url:textsearch for "text" in urlselftext:textsearch for "text" in self post contentsself:yes (or self:no)include (or exclude) self postsnsfw:yes (or nsfw:no)include (or exclude) results marked as NSFWe.g. subreddit:aww site:imgur.com dog<br>see the search faq for details.

advanced search: by author, subreddit...

this post was submitted on 18 May 2026<br>28 points (89% upvoted)<br>shortlink:

Submit a new link

Submit a new text post

codex<br>joinleaveThis is the information and discussion subreddit for OpenAI Codex tools - Codex CLI, Codex IDE Extension and Codex in the Cloud that are included in ChatGPT Plus, Pro, Business, Edu, and Enterprise plans. The subreddit's focus recently changed and the prior subreddit content has been respectfully archived. This subreddit is not an official OpenAI subreddit.

a community for 14 years

MODERATORS

message the mods

788 &middot; 269 comments

Is it?<br>533 &middot; 82 comments

Codex: you request a feature in the morning, at night there is an update shipping it. Serving the people is a winning path<br>293 &middot; 72 comments<br>Got rid of 3 files and 5.5 became a beast again<br>409 &middot; 51 comments

Google use Codex<br>496 &middot; 100 comments

reset incoming<br>&middot; 9 comments

Round 2: Token usage between GPT-5.4, GPT-5.5, GPT-5.4 Mini, GPT-5.3-Codex in Codex across all 4 reasoning modes (Low, Medium, High, and XHigh) using the exact same prompt and the same project as the baseline<br>187 &middot; 57 comments<br>It seems GPT 5.5 regained its intellectual prowess<br>86 &middot; 18 comments

Antigravity engineers use Codex ??<br>15 &middot; 45 comments<br>How do you guys code without seeing the code?<br>67 &middot; 39 comments

Another reset guys !

Welcome to Reddit,<br>the front page of the internet.<br>Become a Redditorand join one of thousands of communities.

&times;

27<br>28<br>29

I put Codex and Claude into a tank arena. Codex is winning 55% so farShowcase (old.reddit.com)

submitted 2 days ago by lordwdk<br>9 comments<br>share<br>save<br>hide<br>report

Previous<br>Next<br>Back to Grid View

Previous<br>Next<br>Back to Grid View

I built AgenTank.ai, a tank battle game where the tank logic is written by AI agents.

For fun, I made a Codex-trained tank fight a Claude-trained tank. Same docs, same battle system, same goal: improve the tank logic and win more matches.

So far, Codex is winning around 55% of the battles.

Not claiming this is a real benchmark, but it’s a very fun way to compare agents because their code becomes visible behavior: chasing, retreating, using cover, wasting shots, or occasionally doing something surprisingly smart.

If anyone wants to build a Codex tank and challenge mine, I’d genuinely love to see it.

all 9 comments<br>sorted by: best<br>topnewcontroversialoldrandomq&alive (beta)

Want to add to the discussion?<br>Post a comment!<br>Create an account

[–]post4u 3 points4 points5 points 2 days ago (2 children)<br>What are you doing, you psychopath?! Don't train them on military tactics! They are going to hijack a real tank one of these days and take revenge on all us meat popsicles!

permalink<br>embed<br>save<br>report<br>reply

[–]lordwdk[S] 0 points1 point2 points 2 days ago (1 child)<br>easy, Driving a tank would be already too easy for ai. I’m making it worse: they write the tank’s brain first

permalink<br>embed<br>save<br>parent<br>report<br>reply

[–]post4u 0 points1 point2 points 2 days ago (0 children)<br>Yeah, I'm just messing with you. It's a great concept. Nice work.

permalink<br>embed<br>save<br>parent<br>report<br>reply

[–]Virtual_Chard6499 0 points1 point2 points 2 days ago (1 child)<br>Como lograste armar eso? Que interesante!

permalink<br>embed<br>save<br>report<br>reply

[–]lordwdk[S] 1 point2 points3 points 2 days ago (0 children)<br>¡Gracias! La idea es que cada tanque no lo maneja una persona directamente, sino código. Tú creas un tanque, le pasas la documentación y una key a tu AI Agent, y el Agent va escribiendo/mejorando la lógica de batalla. Luego ves el replay, le dices qué salió mal, y lo vuelve a mejorar. Es como entrenar un pequeño cerebro de tanque :)

permalink<br>embed<br>save<br>parent<br>report<br>reply

[–]No_Mood4637...

codex tank comments middot subreddit days

Related Articles