Thanks for giving us Claude! 😀
@jeremyphoward
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Opus 4.1 outperforms GPT-5 and Codex for JavaScript development
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OK I worked all day on a JS project to test our GPT-5 in practice. I used chatgpt (with thinking) and codex CLI. I hated them both. For the last 20 minutes I used Opus 4.1, and omg what a breath of fresh air…
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Next GPT Version Expected to Deliver Significant Improvements
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Breaking news:
— Jeremy Howard (@jeremyphoward) 9 août 2025
The *next* version of GPT will be really good, apparently. https://t.co/q3isWrMZBDBreaking news:
The *next* version of GPT will be really good, apparently. -
AI Models Approach Advanced Reasoning With Proper Encouragement
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With encouragement to actually think, it gets sooo close!
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Nine-Year-Old Outperforms GPT5 on Reasoning Task
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My 9yo got it straight away. GPT5 on ChatGPT gets it totally wrong.
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Codex CLI Reliability Issues Compared to Claude Code
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Ugh codex CLI seems a lot flakier than claude code… 🙁
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ChatGPT Canvas GPT5 Multi-Step Tasks Broken Issue
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Actually, upon further testing, it turns out that trying to do almost anything multi-step in ChatGPT's canvas with GPT5 is totally broken. Will try codex and see if that works.
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GPT5 thinking compares well with Claude Opus router issues
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GPT5 thinking seems pretty good – up there with the latest Claude Opus AFAICT. But the router model on ChatGPT seems to have been trained to route far too much to the nerfed versions.
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Add Think Hard to GPT5 Prompts for Better Performance
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PSA: Add ". think hard" to the end of all your ChatGPT GPT5 prompts. In my testing, so far that has resulted in it using the competent model 100% of the time. And so far, not adding it has resulted in it using the crippled model 100% of the time, which has failed all my tasks.
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Perl: Powerful Alternative to Bash Scripting Tools
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No lol! :O Perl is legit awesome for anything beyond the most basic bash script. And it's available everywhere. You can get rid of awk, find, and sed, and make life so much easier 😀