you decide on fine-tuning vs using a ...
1. Approach Prompting as a Discussion Instead of a Direct Command Suppose you have a very intelligent but word-literal intern to work with. If you command them, "Write about health," you are most likely going to get a 500-word essay that will do or not do what you wanted to get done. But if you comRead more
1. Approach Prompting as a Discussion Instead of a Direct Command
Suppose you have a very intelligent but word-literal intern to work with. If you command them,
“Write about health,”
you are most likely going to get a 500-word essay that will do or not do what you wanted to get done.
But if you command them,
- “150-word doctors’ blog on how AI is helping diagnose heart disease, in simple English and one real-life example,”you’ve demonstrated guidance, context, tone, and reasoning.
- That’s how AI models function also — they are not telepathic, but rule-following.
- A good prompt is one that forbids vagueness and gives the model a “mental image” of what you require.
2. Structure Matters: Take the 3C Rule — Context, Clarity, and Constraints.
1️⃣ Context – Tell the model who it is and what it’s doing.
- “You are a senior content writer for a healthcare startup…”
- “You are a data analyst who is analyzing hospital performance metrics…”
- This provides the task and allows the model to align tone, vocabulary, and priority.
2️⃣ Clarity – State the objective clearly.
- “Explain the benefits of preventive care to rural patients in basic Hindi.”
- Avoid general words like “good,” “nice,” or “professional.” Use specifics.
3️⃣ Constraints – Place boundaries (length, format, tone, or illustrations).
- “Be brief in bullets, 150 words or less, and end with an action step.”
- Constraints restrict the output — similar to sketching the boundaries for a painting before filling it in.
3. Use “Few-Shot” or “Example-Based” Prompts
AI models learn from patterns of examples. Let them see what you want, and they will get it in a jiffy.
Example 1: Bad Prompt
- “Write a feedback message for a hospital.”
Example 2: Good Prompt
“See an example of a good feedback message:
- ‘The City Hospital staff were very supportive and ensured my mother was comfortable. Thanks!’
- Make a similar feedback message for Sunshine Hospital in which the patient was contented with timely diagnosis and sanitation of the rooms.”
This technique — few-shot prompting — uses one or several examples to prompt the style and tone of the model.
4. Chain-of-Thought Prompts (Reveal Your Step-by-Step Thinking)
For longer reasoning or logical responses, require the model to think step by step.
Instead of saying:
- “What is the optimal treatment for diabetes?”
Write:
- “Step-by-step describe how physicians make optimal treatment decisions in a Type-2 diabetic patient from diagnosis through medication and conclude with lifestyle advice.
- This is called “chain-of-thought prompting.” It encourages the model to show its reasoning process, leading to more transparent and correct answers.
5. Use Role and Perspective Prompts
You can completely revolutionize answers by adding a persona or perspective.
Prompt Style\tExample\tOutput Style
Teacher
“Describe quantum computing in terms you would use to explain it to a 10-year-old.”
Clear, instructional
Analyst
“Write a comparison of the advantages and disadvantages of having Llama 3 process medical information.”
Formal, fact-oriented
Storyteller
“Briefly tell a fable about an AI developing empathy.”
Creative, storytelling
Critic
“Evaluate this blog post and make suggestions for improvement.”
Analytical, constructive
By giving the model something to do, you give it a “voice” and behavior reference point — what it spits out is more intelligible and easier to predict.
6. Model Output Evaluation — Don’t Just Read, Judge
- You don’t have a good prompt unless you also judge the output sensibly.
- Here’s how people can evaluate AI answers other than “good” or “bad.”
A. Relevance
Does the response actually answer the question or get lost?
- Good: Straightforward on-topic description
- Bad: Unrelated factoid with no relevance to your goal
B. Accuracy
- Verify accuracy of facts — especially for numbers, citations, or statements.
- Computer systems tend to “hallucinate” (adamantly generating falsehoods), so double-check crucial things.
C. Depth and Reasoning
Is it merely summarizing facts, or does it go further and say why something happens?
Ask yourself:
- “Tell me why this conclusion holds.”
- “Can you provide a counter-argument?”
D. Style and Tone
- Is it written in your target market?
- A well-written technical abstract for physicians might be impenetrable to the general public, and conversely.
E. Completeness
- Does it convey everything that you wanted to know?
- If you asked for a table, insights, and conclusion — did it provide all three?
7. Iteration Is the Secret Sauce
No one — not even experts — gets the ideal prompt the first time.
Feel free to ask as you would snap a photo: you adjust the focus, lighting, and view until it is just right.
If an answer falls short:
- Read back your prompt: was it unclear?
- Tweak context: “Explain in fewer words” or “Provide sources of data.”
- Specify format: “Display in a markdown table” or “Write out in bullet points.”
- Adjust temperature: down for detail, up for creativity.
AI is your co-builder assistant — you craft, it fine-tunes.
8. Use Evaluation Loops for Automation (Developer Tip)
Evaluating output automatically by:
- Constructing test queries and measuring performance (BLEU, ROUGE, or cosine similarity).
- Utilizing human feedback (ranking responses).
- Creating scoring rubrics: e.g., 0–5 for correctness, clarity, creativity, etc.
This facilitates model tuning or automated quality checks in production lines.
9. The Human Touch Still Matters
You use AI to generate content, but you add judgment, feeling, and ethics to it.
Example to generate health copy:
- You determine what’s sensitive to expose.
- You command tone and empathy.
- You choose to communicate what’s true, right, and responsible.
AI is the tool; you’re the writer and meaning steward.
A good prompt is technically correct only — it’s humanly empathetic.
10. In Short — Prompting Is Like Gardening
You plant a seed (the prompt), water it (context and structure), prune it (edit and assess), and let it grow into something concrete (the end result).
- “AI reacts to clarity as light reacts to a mirror — the better the beam, the better the reflection.”
- So write with purpose, futz with persistence, and edit with awe.
- That’s how you transition from “writing with AI” to writing with AI.
1. What Every Method Really Does Prompt Engineering It's the science of providing a foundation model (such as GPT-4, Claude, Gemini, or Llama) with clear, organized instructions so it generates what you need — without retraining it. You're leveraging the model's native intelligence by: Crafting accRead more
1. What Every Method Really Does
Prompt Engineering
It’s the science of providing a foundation model (such as GPT-4, Claude, Gemini, or Llama) with clear, organized instructions so it generates what you need — without retraining it.
You’re leveraging the model’s native intelligence by:
It’s cheap, fast, and flexible — similar to teaching a clever intern something new.
Fine-Tuning
It’s helpful when:
You must bake in new domain knowledge (e.g., medical, legal, or geographic knowledge)
It is more costly, time-consuming, and technical — like sending your intern away to a new boot camp.
2. The Fundamental Difference — Memory vs. Instructions
A base model with prompt engineering depends on instructions at runtime.
Fine-tuning provides the model internal memory of your preferred patterns.
Let’s use a simple example:
Scenario Approach Analogy
You say to GPT “Summarize this report in a friendly voice”
Prompt engineering
You provide step-by-step instructions every time
You train GPT on 10,000 friendly summaries
Fine-tuning
You’ve trained it always to summarize in that voice
Prompting changes behavior for an hour.
Fine-tuning changes behavior for all eternity.
3. When to Use Prompt Engineering
Prompt engineering is the best option if you need:
In brief:
“If you can explain it clearly, don’t fine-tune it — just prompt it better.”
Example
Suppose you’re creating a chatbot for a hospital.
If you need it to:
You can all do that with prompt-structured prompts and some examples.
No fine-tuning needed.
4. When to Fine-Tune
Fine-tuning is especially effective where you require precision, consistency, and expertise — something base models can’t handle reliably with prompts alone.
You’ll need to fine-tune when:
Example
You have 10,000 historical pre-auth records with structured decisions (approved, rejected, pending).
Here, prompting alone won’t cut it, because:
5. Comparing the Two: Pros and Cons
Criteria Prompt Engineering Fine-Tuning
Speed Instant — just write a prompt Slower — requires training cycles
Cost Very low High (GPU + data prep)
Data Needed None or few examples Many clean, labeled examples
Control Limited Deep behavioral control
Scalability Easy to update Harder to re-train
Security No data exposure if API-based Requires private training environment
Use Case Fit Exploratory, general Forum-specific, repeatable
Maintenance.Edit prompt anytime Re-train when data changes
6. The Hybrid Strategy — The Best of Both Worlds
In practice, most teams use a combination of both:
7. How to Decide Which Path to Follow (Step-by-Step)
Here’s a useful checklist:
Question If YES If NO
Do I have 500–1,000 quality examples? Fine-tune Prompt engineer
Is my task redundant or domain-specific? Fine-tune Prompt engineer
Will my specs frequently shift? Prompt engineer Fine-tune
Do I require consistent outputs for production pipelines?
Fine-tune
Am I hypothesis-testing or researching?
Prompt engineer
Fine-tune
Is my data regulated or private (HIPAA, etc.)?
Local fine-tuning or use safe API
Prompt engineer in sandbox
8. Errors Shared in Both Methods
With Prompt Engineering:
With Fine-Tuning:
9. A Human Approach to Thinking About It
Let’s make it human-centric:
If you’re creating something stable, routine, or domain-oriented — train the employee (fine-tune).
10. In Brief: Select Smart, Not Flashy
“Fine-tuning is strong — but it’s not always required.
The greatest developers realize when to train, when to prompt, and when to bring both together.”
Begin simple.
If your questions become longer than a short paragraph and even then produce inconsistent answers — that’s your signal to consider fine-tuning or RAG.
See less