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The Developer's Guide to Choosing the Right AI Model

GPT-4o vs Claude 3.5 Sonnet vs Gemini 1.5 Pro - they're not interchangeable. Here's a practical framework for picking the right model for your specific use case.

SR

Sofia Reyes

Developer Advocate

·February 10, 2025

The most common question we get from new Synthr users is: which model should I use? The honest answer is: it depends. Here's how to decide.

Start with the task type

  • Code generation: GPT-4o or Claude 3.5 Sonnet
  • Long document analysis: Gemini 1.5 Pro (2M context)
  • Fast classification: GPT-4o Mini or Claude 3.5 Haiku
  • Reasoning tasks: o3 or Claude 3.7 Sonnet
  • Cost-sensitive workloads: Llama 3.1 70B or Mistral Large

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