What do you think reasoning models are doing? Basically this. 4.5 is not a reasoning model. Adding this to the prompt makes it act like one. Please try it.
@mattshumer_
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GPT-5 Native Reasoning Eliminates Need for Chain-of-Thought
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GPT-5 (all variants) can reason natively so there's no need to use this approach
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NVIDIA praised for outstanding AI model development
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Thanks to @nvidia @NVIDIAAI for making such a great model!
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OpenRouter Powers AI Platform Innovation
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Of course, it's powered by the incredible @openrouter platform 🙂
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Nvidia Pro Mode: Open Source Nemotron 9B Chaining
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Introducing: Nvidia Pro Mode!
— Matt Shumer (@mattshumer_) 10 septembre 2025
Basically GPT-5 Pro, but for the new Nvidia open source model 🙂
Pro Mode chains together up to 50 instances of the new Nemotron 9B model, enabling it to produce a better answer than one instance alone could create!
Open source, link here: pic.twitter.com/cMDzTZp9bXIntroducing: Nvidia Pro Mode! Basically GPT-5 Pro, but for the new Nvidia open source model 🙂 Pro Mode chains together up to 50 instances of the new Nemotron 9B model, enabling it to produce a better answer than one instance alone could create! Open source, link here:
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Comparing Claude Model Performance: 5 Thinking vs Pro vs 4.5
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I think about this constantly. Right now I use:
– 5 thinking
– 5 pro
– 4.5 Regular 5 sucks -
GPT-4.5 Thinking Mode Outperforms Non-Thinking GPT-5
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GPT-4.5, especially when prompted to think before responding, is still such an underrated model. Way better than non-thinking GPT-5. Way better.
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XML Prompting Superior to JSON for AI Interactions
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Reminder that JSON prompting is not the way to go XML is (almost) always better
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DSPy Framework: Innovative Concept Needs Improved Usability
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DSPy is an exception here, concept is great, and it does something completely different from these frameworks I’m discussing. It definitely needs to be way more simple to use though!
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Codex Agent Excels with Vibe Coding Prompts Out of Box
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Codex is just a generally good agent so most of my vibe coding prompts should work out of the box!