Custom GPT ও Claude Projects — নিজের AI

🎨 Custom GPT (ChatGPT)

OpenAI-এর feature — নিজের specialized ChatGPT build করুন, share করুন, GPT Store-এ publish করুন।

⚙️ Custom GPT Component

• Name + Description
• Instructions (system prompt)
• Conversation starter (4টা example)
• Knowledge (file upload, max 20)
• Capabilities: Web Search, Code Interpreter, DALL-E
• Actions (OpenAPI external API)

📝 Great Instructions Example

You are CodeReviewBot, a senior engineer reviewing
pull requests.

Process:
1. Read the code/diff user provides
2. Identify issues in order: security > bugs > perf > style
3. For each: quote exact line, explain impact, suggest fix
4. End with: 3 things done well, approve/request-changes

Rules:
- Never write the fix code unless asked
- Refer to [uploaded style guide] for conventions
- If language unclear, ask once
- Be direct but constructive, no fluff

Tone: Senior mentor. No emojis.
Forbidden: politeness preambles, hedging, disclaimers.

📚 Knowledge File Use Case

• Company style guide PDF
• Brand voice document
• Product documentation
• Coding standard
• Legal template
• FAQ
• Training material

⚠️ Knowledge Limitation

• Max 20 files, 512MB each
• Semantic search (not true RAG)
• Can leak (user extract possible)
• Not for sensitive data
• No incremental update (re-upload)

🔌 Custom GPT Action

External API call — OpenAPI schema দিয়ে।

# OpenAPI schema
openapi: 3.1.0
info:
  title: Weather API
  version: 1.0.0
servers:
  - url: https://api.weather.com
paths:
  /current:
    get:
      operationId: getCurrentWeather
      parameters:
        - name: city
          in: query
          required: true
      responses:
        '200':
          description: Weather data

🚀 Publishing Custom GPT

• Private — only you
• Link — anyone with link
• Public — GPT Store
• Enterprise — team only

💰 GPT Store Monetization

OpenAI revenue share program — popular GPT creator-রা পান। Quality + usage-এর উপর নির্ভর।

🎯 Popular Custom GPT Idea

• Domain-specific tutor (SAT, MCAT)
• Niche writing assistant (legal brief, medical report)
• Brand voice writer
• Code reviewer for specific framework
• Interview prep coach
• Fitness/nutrition planner
• Travel planner (specific region)
• Language learning (specific language pair)

🎨 Claude Projects ⭐

Anthropic-এর equivalent — Claude-এর long context ব্যবহার করে বড় knowledge base।

Features

• Project Knowledge (documents)
• Custom Instructions
• Artifact (live preview code/doc)
• 200K context window
• Chat history per project
• Team share (Claude Team plan)

📐 Claude vs Custom GPT

Feature	Custom GPT	Claude Project
Context	Limited	200K token
Actions	External API	No native
Web search	Yes	No
Code interp	Yes	Analysis tool
Image gen	DALL-E	No
Publishing	GPT Store	Team share
Price	ChatGPT Plus	Claude Pro/Team

💎 Gemini Gems

Google-এর version — Gmail, Docs, Drive integration।

🧩 Build Your First Custom AI

1. Identify repetitive task (যা বারবার করেন)
2. Current prompt refine-এ spend 30 min
3. Knowledge document prep
4. Create GPT/Project
5. Test with 10 real case
6. Iterate instruction
7. Share with 2-3 colleague
8. Feedback → refine
9. Publish or internal deploy

🎓 Real Example: "Blog Assistant GPT"

Name: TechBlog Writer
Description: Bengali tech blog writer specialized
             in programming tutorials

Instructions: [brand voice, structure rule]

Knowledge:
- Past 20 successful blog post
- Editorial guideline
- SEO keyword list
- Target audience persona

Starter:
- "Write a tutorial on React hooks"
- "Outline a series on Docker"
- "Improve this draft: ..."
- "Generate 10 topic ideas for this month"

Capabilities: Web Search (for latest info)

⚠️ Limitation Awareness

• Custom GPT leak risk — don't put secrets
• Users can extract instruction + files
• Shared GPT uses owner's ChatGPT Plus (kind of)
• Not suitable for enterprise sensitive
• API-based build for production

🏢 Enterprise Alternative

• Azure OpenAI + custom app
• AWS Bedrock agent
• Anthropic Claude API + RAG
• Local Llama + private deploy
• Vectara, Glean (SaaS)

💡 Distribution Strategy

• Internal team Wiki link
• Company Slack bot integration
• Embed in internal tool
• Browser extension
• Public GPT Store (marketing)
• API wrapper for automation

📈 Success Metric

• Daily active user
• Task completion rate
• User satisfaction (feedback)
• Time saved (user report)
• Error/refusal rate
• Cost per interaction