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Dev.to
6/19/2026
I Saved $2,620 Monthly Ditching GPT-4 — A Data Scientist's Deep Dive

I Saved $2,620 Monthly Ditching GPT-4 — A Data Scientist's Deep Dive

Short summary

A data scientist reduced SaaS API costs from $3,200 to $580 monthly by switching from GPT-4o to cheaper Chinese alternatives like DeepSeek V4 Flash and DeepSeek R1, achieving comparable or better benchmark performance via OpenAI-compatible APIs. The migration required only two lines of code changes. For code generation, DeepSeek R1 outperformed GPT-4o at one-fifth the cost.

  • Reduced monthly API spend from $3,200 to $580 by switching to DeepSeek and Qwen models
  • Migration required only two lines of code changes using OpenAI-compatible API endpoints
  • DeepSeek R1 outperforms GPT-4o on code generation benchmarks at 78% lower cost

Generated with AI, which can make mistakes.

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