ChatGPT Plus costs $240/year. I built my own AI assistant for FREE using AWS Bedrock — running on Claude 3 Sonnet, Titan, and Nova. Full step-by-step tutorial with source code.

🔗 Get the code: https://github.com/Mamadoubalde/gen-a...
🔗 AWS Bedrock docs: https://aws.amazon.com/bedrock/
🔗 Free AWS account: https://aws.amazon.com/free/
🔗 AIP-C01 Exam Guide: https://aws.amazon.com/certification/...

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⏱️ TIMESTAMPS
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00:00 — Why I ditched ChatGPT Plus
00:45 — AWS Bedrock setup (free tier)
03:00 — Building the assistant in Python
07:00 — Streamlit UI walkthrough
10:00 — Testing, cost breakdown, results

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🛠️ WHAT YOU'LL LEARN
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✅ AWS Bedrock fundamentals
✅ Converse API vs InvokeModel (key exam topic)
✅ Multi-model invocation (Claude, Titan, Nova)
✅ Prompt engineering: zero-shot, few-shot, chain-of-thought
✅ Token counting and cost estimation
✅ Building a Streamlit chat app
✅ IAM permissions for Bedrock

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💰 REAL COST BREAKDOWN
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• 12 requests in my demo: $0.03
• Estimated annual cost: ~$6/year
• ChatGPT Plus: $240/year
• Savings: 97%

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📚 ABOUT THIS SERIES
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I'm documenting my entire journey to the AWS Certified Generative AI Developer Professional exam. Every episode builds one real AI app and maps it to exam domains.

Episode 1: Free ChatGPT alternative (you are here)
Episode 2: ChatGPT for my PDFs (RAG)
Episode 3: AI that reads any document
Episode 4: AI that can't be hacked
Episode 5: Multi-tool AI agents
...and more.

Subscribe to follow the build.

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🎯 WHO THIS IS FOR
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• Developers learning AWS GenAI
• Anyone tired of ChatGPT Plus bills
• AWS certification candidates (AIP-C01)
• Indie hackers building AI products
• Anyone curious how AI apps actually work

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🔧 TOOLS I USED
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• AWS Bedrock (Claude 3 Sonnet, Titan G1, Nova Pro)
• Python 3.11 + boto3
• Streamlit for the UI
• AWS CLI for setup
• VS Code

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📌 EXAM CORNER NOTES (AIP-C01)
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Bedrock has two main APIs:
• bedrock — manage, deploy, train models
• bedrock-runtime — perform inference

Unified API: Converse (supports messages across models)
Native API: InvokeModel (model-specific payloads)

IAM policies:
• AmazonBedrockFullAccess — full permissions
• AmazonBedrockReadOnly — read-only access

Token counting:
• CountTokens API — estimates cost without invoking
• CloudWatch tracks InputTokenCount, OutputTokenCount

Comment below with what you want to see next.

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#AWS #GenAI #Bedrock #ChatGPT #AI #AWSBedrock #MachineLearning #AWSCertification #LLM #ArtificialIntelligence #Claude #Titan #Nova #Serverless #Python #Streamlit #AIP #CloudComputing #TechTutorial #FreeAI

Next episode, I'll secure the API with authentication and guardrails. What should I add after that — PDF chat, image generation, or voice?