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Robert John | Don’t Fear AI Profile
Robert John | Don’t Fear AI

@trojrobert

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Putting ML in production @Adtriba. Working on Data like a farmer work on seed, I used ML to produce the fruit AWS Community Builder Ex @Bosch @MercedesBenz int

Hamburg, Germany
Joined August 2013
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@trojrobert
Robert John | Don’t Fear AI
5 years
Trying to have some fun😃, we(@5hyguy) decided to build ourselves an intelligent mirror. Smart Mirror for Africa #JuJuMirror🥴 - screen touch interaction - integration with Alexa - YouTube integration - video call integration - control button @hackSultan @AremoQueenIdia
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@trojrobert
Robert John | Don’t Fear AI
18 hours
How to find a wife 😀
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@trojrobert
Robert John | Don’t Fear AI
7 days
When building AI apps, the hardest part isn’t writing code , it’s getting everything to work together. From CUDA mismatches to framework conflicts, dependency hell in AI dev is real
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@trojrobert
Robert John | Don’t Fear AI
7 days
Forget the 10-course "AI starter pack." Most beginners get overwhelmed. My single best recommendation for building practical AI skills: Google Skills. Why? You learn from the engineers who built the tools (TensorFlow, Gemini). It's focused, practical, and a lot of it is free.
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@trojrobert
Robert John | Don’t Fear AI
1 month
Evaluating LLMs just got easier. DeepEval = pytest for LLM apps (⭐11k). ✅ 20+ ready-to-use metrics (G-Eval, RAGAS, bias, hallucination) 🔐 Red-team 40+ safety issues in 3 lines ⚙️ Works with LangChain, LlamaIndex, CrewAI & more 📊 CI/CD friendly 2 lines of code → real evals
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@trojrobert
Robert John | Don’t Fear AI
1 month
Now: $0 Building. Failing. learning. Adding value. Staying consistent. Tomorrow: $10M
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@trojrobert
Robert John | Don’t Fear AI
2 months
I know some of the live demo from Meta didn't go well but it is great to see how far they have gone and what they are trying.
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@trojrobert
Robert John | Don’t Fear AI
2 months
We are all using the fake product
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@trojrobert
Robert John | Don’t Fear AI
3 months
AI isn’t just about intelligence — it’s about value. This chart shows AI models ranked by capability vs. cost to run. The green zone = smartest per $ spent. Top-tier closed models? Powerful, but pricey. Which would you pick: brains 💭 or budget 💰? #AI #GenAI
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@trojrobert
Robert John | Don’t Fear AI
3 months
🔧 Pro Tips - Use minimal reasoning for speed-sensitive tasks - Use high reasoning for deep exploration - Let GPT-5 meta-prompt itself to improve your prompts - Test & iterate prompting is an engineering skill now
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@trojrobert
Robert John | Don’t Fear AI
3 months
5️⃣ Use tool preambles & updates Make GPT-5 explain its plan before acting. Benefits: - Better transparency - Fewer surprises in long workflows - Easier debugging of agent behavior
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@trojrobert
Robert John | Don’t Fear AI
3 months
4️⃣ Structure your prompts GPT-5 thrives on clear, scoped, contradiction-free instructions. Examples: <instruction>Do X step-by-step</instruction> Avoid vague or conflicting rules they hurt performance more than in GPT-4.
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@trojrobert
Robert John | Don’t Fear AI
3 months
3️⃣ Tune its autonomy (“agentic” calibration) Decide if GPT-5 should: - Act proactively without asking - Or wait for explicit instructions 📌 Define clear stop conditions in your prompt.
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@trojrobert
Robert John | Don’t Fear AI
3 months
2️⃣ Control verbosity New verbosity parameter sets how much detail GPT-5 gives in final answers. - Low for short summaries - High for in-depth explanations or code reviews Can even set different verbosity per task.
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@trojrobert
Robert John | Don’t Fear AI
3 months
1️⃣ Control its reasoning depth Use reasoning_effort: - Low → faster answers, less exploration - High → better for complex, multi-step tasks Pro tip: For most tasks, medium is enough.
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@trojrobert
Robert John | Don’t Fear AI
3 months
Why GPT-5 is different - New parameters for reasoning & verbosity - More control over autonomy (“agentic” behavior) - Better at multi-step workflows - Highly sensitive to unclear or conflicting instructions
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@trojrobert
Robert John | Don’t Fear AI
3 months
Prompting GPT-5 isn’t the same as GPT-4. If you use the old approach, you’re leaving performance on the table. Here’s how to really prompt to GPT-5 #GPT5 #PromptEngineering #AI #OpenAI
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@trojrobert
Robert John | Don’t Fear AI
3 months
That screenshot wasn’t proof of AI incompetence. It was proof you shouldn’t expect human-like reasoning and calculator-like precision from a language model without giving it the right tools. #AI #ChatGPT #MachineLearning #LLM #DataScience
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@trojrobert
Robert John | Don’t Fear AI
3 months
Benchmark the system (LLM + tools), not the LLM alone. The magic is in combining language reasoning with AI agents
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@trojrobert
Robert John | Don’t Fear AI
3 months
Decimals like 5.9 and 5.11 are tricky. Borrowing across decimal places isn’t symbolic computation, it’s basically like doing mental math while distracted. Easy for a calculator, error-prone for a pattern predictor.
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@trojrobert
Robert John | Don’t Fear AI
3 months
LLMs aren’t calculators. LLM predict the next word or token based on training data. If they don’t call a math/Python tool(AI Agent), they’re doing “math”
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