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GPT-5.3 Codex is actually pretty insane with Three.js This Minecraft clone works smoothly and it didn't take too long to make I also tried Opus 4.6, but for some reason it got stuck

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Angel 🌼

11,700 subscribers

1,127,915 views • 4 months ago •via X (Twitter)

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It’s time for another Counter-Strike benchmark: GPT 5.3 Codex and Claude 4.6 Opus:
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It’s time for another Counter-Strike benchmark: GPT 5.3 Codex and Claude 4.6 Opus:

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Opus 4.6 and Codex 5.3 still make stupid decisions
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Opus 4.6 and Codex 5.3 still make stupid decisions

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Claude Sonnet 4.6 vs GPT 5.3 Codex Same Prompt in Cursor (Neutral Harness) - Default Settings! GPT 5.3 Codex took - 2 mins Claude Sonnet 4.6 - 7 mins Cheaper than Sonnet 4.6! Faster than Sonnet 4.6! But I'm not sure if it's more craftier than Sonnet 4.6 because Sonnet's got a taste! Claude Sonnet 4.6 had a better result (aesthetically) and also more solid techstack - GPT 5.3 codes meanwhile just got the job done!
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Claude Sonnet 4.6 vs GPT 5.3 Codex Same Prompt in Cursor (Neutral Harness) - Default Settings! GPT 5.3 Codex took - 2 mins Claude Sonnet 4.6 - 7 mins Cheaper than Sonnet 4.6! Faster than Sonnet 4.6! But I'm not sure if it's more craftier than Sonnet 4.6 because Sonnet's got a taste! Claude Sonnet 4.6 had a better result (aesthetically) and also more solid techstack - GPT 5.3 codes meanwhile just got the job done!

1LittleCoder💻

142,760 views • 4 months ago

Opus 4.6 and Codex 5.3 just launched, so I did a hexagon test on both of them Opus 4.6 - 1M context - great for research + enterprise work - agent teams + long-range reasoning - weaker on raw code benchmarks Codex 5.3 - wins coding benchmarks - faster + mid-task steering - smaller context window TLDR: Opus = depth + orchestration Codex = speed + code
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Opus 4.6 and Codex 5.3 just launched, so I did a hexagon test on both of them Opus 4.6 - 1M context - great for research + enterprise work - agent teams + long-range reasoning - weaker on raw code benchmarks Codex 5.3 - wins coding benchmarks - faster + mid-task steering - smaller context window TLDR: Opus = depth + orchestration Codex = speed + code

Abhinav

447,814 views • 4 months ago

What's better than Claude Opus 4.6 or GPT 5.3 Codex? Running them all, in parallel, with a single GitHub Copilot subscription. And all of this shipped just this week.
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What's better than Claude Opus 4.6 or GPT 5.3 Codex? Running them all, in parallel, with a single GitHub Copilot subscription. And all of this shipped just this week.

Martin Woodward

65,561 views • 4 months ago

Wait… I’m actually obsessed with Codex + GPT-5.4 🤯 Built a Club Penguin clone in 6 prompts. Then used to make it multiplayer. Didn’t expect this but… OpenAI might've officially converted me to Codex for vibe-coding.
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Wait… I’m actually obsessed with Codex + GPT-5.4 🤯 Built a Club Penguin clone in 6 prompts. Then used to make it multiplayer. Didn’t expect this but… OpenAI might've officially converted me to Codex for vibe-coding.

Safinaz Elhadary

50,485 views • 3 months ago

Claude Opus 4.6 vs GPT-5.3 Codex aren't just different models. They're different engineers. Opus 4.6: → 1M token context window → Reads the whole codebase before deciding → Asks "should we do this?" → Failure mode: overanalyzes, hesitates GPT-5.3 Codex: → 200K tokens, built for speed → Decides fast, acts, iterates → Asks "how fast can I ship this?" → Failure mode: locks in a flawed assumption early Think: Opus = your architect Codex = your operator Pick the one that matches the task.
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Claude Opus 4.6 vs GPT-5.3 Codex aren't just different models. They're different engineers. Opus 4.6: → 1M token context window → Reads the whole codebase before deciding → Asks "should we do this?" → Failure mode: overanalyzes, hesitates GPT-5.3 Codex: → 200K tokens, built for speed → Decides fast, acts, iterates → Asks "how fast can I ship this?" → Failure mode: locks in a flawed assumption early Think: Opus = your architect Codex = your operator Pick the one that matches the task.

The Startup Ideas Podcast (SIP) 🧃

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gpt 5.3 (left) vs opus 4.6 (right) - which one is better? full prompt below
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gpt 5.3 (left) vs opus 4.6 (right) - which one is better? full prompt below

Sughu

11,338 views • 4 months ago

I am really liking the new gpt-5-codex. this is its attempt at one shotting minecraft in three.js
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I am really liking the new gpt-5-codex. this is its attempt at one shotting minecraft in three.js

JB

479,500 views • 9 months ago

I tried Opus 4.6 Max in Cursor with a much more detailed prompt and the results are incredible Functional inventory, health, tools, recipes, and more The only downside is how expensive the model is and it also had to fix some bugs, but it's a pretty strong model overall
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I tried Opus 4.6 Max in Cursor with a much more detailed prompt and the results are incredible Functional inventory, health, tools, recipes, and more The only downside is how expensive the model is and it also had to fix some bugs, but it's a pretty strong model overall

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70,697 views • 4 months ago

I told Claude 4.6 Opus to make a pokemon clone - max effort It reasoned for 1 hour and 30 minutes and used 110k tokens and 2 shotted this absolute behemoth. This is one of the coolest things I’ve ever made with AI
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I told Claude 4.6 Opus to make a pokemon clone - max effort It reasoned for 1 hour and 30 minutes and used 110k tokens and 2 shotted this absolute behemoth. This is one of the coolest things I’ve ever made with AI

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Opus 4.6 vs. Minimax M2.5 Prompt: Build an interactive solar system from scratch. Opus 4.6 tried to create a beautiful UI, but the sun’s shadow ruined it. Minimax M2.5 built a simple version that works beautifully. The winner is: 🥇 Minimax M2.5 🥈 Opus 4.6
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Opus 4.6 vs. Minimax M2.5 Prompt: Build an interactive solar system from scratch. Opus 4.6 tried to create a beautiful UI, but the sun’s shadow ruined it. Minimax M2.5 built a simple version that works beautifully. The winner is: 🥇 Minimax M2.5 🥈 Opus 4.6

Okara

80,558 views • 4 months ago

How it feels to give a task to Opus 4.6 and Codex 5.3 in parallel to see which one can better blast through 3 months of human work in 5 mins
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How it feels to give a task to Opus 4.6 and Codex 5.3 in parallel to see which one can better blast through 3 months of human work in 5 mins

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Clawdbot creator Peter Steinberger 🦞 says Claude Opus is his favorite model, but OpenAI Codex is the best for coding: "OpenAI is very reliable. For coding, I prefer Codex because it can navigate large codebases. You can prompt and have 95% certainty that it actually works. With Claude Code you need more tricks to get the same." "But character wise, [Opus] behaves so good in a Discord it kind of feels like a human. I've only really experienced that with Opus."
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Clawdbot creator Peter Steinberger 🦞 says Claude Opus is his favorite model, but OpenAI Codex is the best for coding: "OpenAI is very reliable. For coding, I prefer Codex because it can navigate large codebases. You can prompt and have 95% certainty that it actually works. With Claude Code you need more tricks to get the same." "But character wise, [Opus] behaves so good in a Discord it kind of feels like a human. I've only really experienced that with Opus."

TBPN

442,659 views • 5 months ago

This is hands down the best clone of Minecraft I've ever seen This was built using multiple frontier coding models: Gemini 3 Pro, GPT 5.1 Codex, and Claude Opus 4.1. Switching between multiple models is such a superpower
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This is hands down the best clone of Minecraft I've ever seen This was built using multiple frontier coding models: Gemini 3 Pro, GPT 5.1 Codex, and Claude Opus 4.1. Switching between multiple models is such a superpower

Aryan Vichare

93,910 views • 7 months ago

I tried Opus 4.7 (xhigh) with my Minecraft prompt It's a very ambitious and creative model, but it feels unreliable It even added mobs and ore generation, but most things were broken and it couldn't fix some
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I tried Opus 4.7 (xhigh) with my Minecraft prompt It's a very ambitious and creative model, but it feels unreliable It even added mobs and ore generation, but most things were broken and it couldn't fix some

Angel 🌼

68,508 views • 2 months ago

Okay this is DEEPLY concerning All my GPT 5.3 Codex requests are routing to GPT 5.2 I ran banteg script through all Codex models and ONLY 5.3 Codex was affected This is really really unacceptable, how can I trust the work done? cc: Tibo / Alexander Embiricos / Romain Huet
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Okay this is DEEPLY concerning All my GPT 5.3 Codex requests are routing to GPT 5.2 I ran banteg script through all Codex models and ONLY 5.3 Codex was affected This is really really unacceptable, how can I trust the work done? cc: Tibo / Alexander Embiricos / Romain Huet

Numman Ali

262,050 views • 4 months ago

opus 4.6 with new “swarm” mode vs. opus 4.6 without it. 2.5x faster + done better. swarms work! and multi-agent tmux view is *genius*. insane claude code update.
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opus 4.6 with new “swarm” mode vs. opus 4.6 without it. 2.5x faster + done better. swarms work! and multi-agent tmux view is *genius*. insane claude code update.

Mckay Wrigley

288,859 views • 4 months ago

Playing around with GPT-5.4 and I had it one-shot a version of a Bavarian card game that lets me play against Opus 4.6 and GPT-5.4.
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Playing around with GPT-5.4 and I had it one-shot a version of a Bavarian card game that lets me play against Opus 4.6 and GPT-5.4.

Thorsten Ball

33,228 views • 3 months ago

Clone a functional Billion $$ SAAS Part 2 - Figma. Now that Claude Opus 4.6 and Codex 5.3 are available, I decided to try this again. The result - CanvasKit Tools used - Windsurf (retired) Cascade & OpenAI Codex CLI First agent run - 30 minutes Total time spent w/ extra prompting - 3 hours I think this could be a new metric for model evaluations - TTBS (time to billion $$ SAAS 😂) Code and details below:
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Clone a functional Billion $$ SAAS Part 2 - Figma. Now that Claude Opus 4.6 and Codex 5.3 are available, I decided to try this again. The result - CanvasKit Tools used - Windsurf (retired) Cascade & OpenAI Codex CLI First agent run - 30 minutes Total time spent w/ extra prompting - 3 hours I think this could be a new metric for model evaluations - TTBS (time to billion $$ SAAS 😂) Code and details below:

nader dabit

30,175 views • 4 months ago