⚙ Curated ranking
Cheapest fine-tunable AI models
Fine-tuning lets you customize a model's behavior on your own data — often the highest-leverage way to improve task accuracy without prompt engineering. Ranked by input price ascending; fine-tuning training costs are separate and not factored here.
Methodology
How this ranking is built
Active models that support fine-tuning and have a published inference input price. Ranked from cheapest inference cost upward. Training costs are billed separately by each provider and aren't included here.
Refreshed as we re-verify each model against its provider's official docs. Every value links to the page it came from.
Last updated Jun 15, 2026 07:59 UTC.
See also