LLM Fine-Tuning Cost in 2026: What Custom Model Training Really Costs
LLM fine-tuning cost in 2026 across three regimes: $20-$35 LoRA runs on rented GPUs, $1.50-$25 per 1M tokens on OpenAI's winding-down platform, local QLoRA on a 24GB card - plus real data requirements (50-1,000 examples) and the hidden cost lines.