Dev.to
7/14/2026

The original title is "Migrating from OpenAI to DeepSeek V4 Flash: Cost Comparison and Code Guide"
Original: How I Cut My OpenAI Bill by 97% — The Full Migration Guide
Short summary
A developer shares how they cut their OpenAI bill from ~$500/month to ~$12.50 by migrating to DeepSeek V4 Flash via Global API, which offers an OpenAI-compatible interface. The migration required changing only two lines of code—the API key and base URL. The article includes a detailed pricing comparison table showing 3x to 40x cost savings across multiple alternative models.
- •Migrating from GPT-4o to DeepSeek V4 Flash via Global API cuts costs 40x
- •Global API uses OpenAI-compatible SDK, requiring only 2 lines of code change
- •Includes pricing comparison across 7 models from OpenAI and Global API
Generated with AI, which can make mistakes.
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