LLM Migration from GPT to Claude or Open Source

We design and deploy artificial intelligence systems: from prototype to production-ready solutions. Our team combines expertise in machine learning, data engineering and MLOps to make AI work not in the lab, but in real business.
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LLM Migration from GPT to Claude or Open Source
Medium
~1-2 weeks
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LLM Migration: GPT to Claude, Open Source

Migration strategy from OpenAI GPT-4 to Claude or open-source models. Cost reduction 40–60%, quality maintained or improved.

Migration Steps

  1. Audit current usage patterns
  2. Identify task-specific models
  3. Run parallel A/B tests
  4. Update prompts for new model
  5. Monitor quality metrics
  6. Full cutover

Cost Comparison

  • GPT-4o: $30/$60 per 1M
  • Claude 3.5 Sonnet: $3/$15 per 1M
  • Llama 3.1 70B: $0.88/$0.88 per 1M

Timeline

  • Analysis phase: 3–5 days
  • Model testing: 1 week
  • A/B testing: 1–2 weeks
  • Full migration: 3–5 days