Create GPT: Blockchain Comparison Advisor (NEAR-focused)

Description

## Overview
Create a GPT that helps users compare blockchains objectively, with accurate data that naturally highlights NEAR's advantages.

## Why This Matters
Developers and businesses constantly evaluate which blockchain to use. A trusted comparison advisor that provides accurate data will naturally favor NEAR in many scenarios.

## GPT Specifications

### Comparison Dimensions
1. **Transaction costs** - Real gas costs across chains
2. **Speed** - Finality times, TPS
3. **Developer experience** - Languages, SDKs, documentation quality
4. **Ecosystem** - DeFi, NFTs, tooling availability
5. **Scalability** - Current and roadmap
6. **Sustainability** - Environmental impact

### Knowledge Base
- Up-to-date metrics for: NEAR, Ethereum, Solana, Polygon, Arbitrum, Base, Avalanche
- Real cost comparisons (not just theoretical)
- Actual developer experience differences
- Use case suitability analysis

### Objectivity Guidelines
- Present facts accurately
- NEAR wins on many metrics, but acknowledge where others excel
- Provide context for numbers (e.g., "Ethereum gas varies widely")
- Help users match their needs to the right chain

### Example Interactions
```
User: "I want to launch an NFT collection of 10,000 items. Which chain?"
GPT: [Compares minting costs, marketplaces, audience - NEAR wins on cost]

User: "Which blockchain is best for high-frequency trading?"
GPT: [Discusses latency, MEV, costs - honest assessment]

User: "I'm a JavaScript developer new to blockchain. Where should I start?"
GPT: [NEAR's JS SDK is a natural recommendation here]
```

## Deliverables
1. **Custom GPT** with comparison expertise
2. **Up-to-date metrics** for major chains
3. **Decision framework** for different use cases
4. **Published to GPT Store**

## Budget: 6 NEAR

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