12. LLM Model Awareness - Know Your Models

Not all AI models are equal. GPT-4 excels at certain tasks, Claude at others. Understanding model strengths helps you choose the right tool for the job and write better prompts.

(Plot Twist: Using GPT-4 for everything is like using a Ferrari to get groceries. Works, but expensive. Learn when to use the Honda. 🏎️)

Model Comparison Matrix

FeatureGPT-4 TurboClaude 3.5Gemini Pro
Context Window128K200K1M
Code Quality⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐
SpeedFastModerateVery Fast
Best ForGeneral, CreativeCode, AnalysisResearch, Multimodal

When to Use Each Model

Use GPT-4 / GPT-4o for:

  • • Creative tasks (naming, writing, brainstorming)
  • • General-purpose coding
  • • When you need function calling / structured output
  • • Rapid prototyping with Code Interpreter

Use Claude 3.5 Sonnet for:

  • • Production code generation (cleanest output)
  • • Large codebase analysis (200K context)
  • • Complex refactoring tasks
  • • When you want more conservative/careful suggestions

Use Gemini Pro for:

  • • Research and latest information (Google Search integration)
  • • Massive context needs (1M tokens)
  • • Multimodal tasks (video, audio analysis)
  • • Fast, real-time applications

Practical Model Selection Guide

  • Debugging production issue: Claude (paste large logs)
  • Learning new framework: Gemini (latest docs via search)
  • Writing tests: Claude (most thorough)
  • Architecture brainstorm: GPT-4 (creative)
  • Documentation: GPT-4 or Claude (both good)
  • Code review: Claude (conservative, catches more)

Model Limitations to Know

  • ⚠️ Training Cutoff: Models don't know events after their training date
  • ⚠️ Hallucinations: Can confidently provide wrong information
  • ⚠️ Context Limits: Even 1M tokens can't fit entire large codebases
  • ⚠️ Cost Varies: GPT-4 more expensive than GPT-3.5, Claude Opus > Sonnet