How much does LLM fine-tuning cost?
LLM fine-tuning typically costs about $3,500. Half of the 78 priced job posts we tracked fall between $420 and $13,700, and one in ten reaches $27,100 or more.
Band: 25th to 75th percentile of fixed budgets and hourly estimates. Line: median.
Key facts
- Typical cost: $3,500, with the middle half of posts between $420 and $13,700.
- That is 40% above the $2,500 median across all AI builds we track.
- Work expected to take under a month has a median of $450, against $26,400 for over six months.
- Fixed-price median $400; hourly estimate median $11,500.
- Hourly rates mostly run from $28 to $45 an hour.
- Most requested skills: Machine Learning, Python and Artificial Intelligence.
What the build includes
LLM fine-tuning trains a language model further on your examples so it follows a format, tone or specialised task more reliably than prompting alone.
A typical scope
- Dataset collection and cleaning
- Training runs on a chosen base model
- Evaluation against a held-out test set
- Deployment or hosted endpoint
- A process for retraining
What drives the cost
Work expected to take under a month has a median of $450, against $26,400 for over six months. Part of that gap is built in, because hourly estimates are calculated from expected length. Fixed-price posts state a median of $400, while hourly posts work out at $11,500 on our estimate: 29 times as much. One likely reason is that fixed budgets tend to cover a small first step, while hourly posts describe sustained work.
| Expected length | Median cost | Priced posts |
|---|---|---|
| Under 1 month | $450 | 22 |
| 1 to 3 months | $3,600 | 39 |
| 3 to 6 months | $21,600 | 8 |
| Over 6 months | $26,400 | 9 |
Posts asking for expert-level talent have a median of $6,800, 6.8 times the $1,000 for intermediate talent. 54% of posts ask for experts.
| Seniority requested | Median cost | Priced posts |
|---|---|---|
| Entry level | Too few posts | 3 |
| Intermediate | $1,000 | 35 |
| Expert | $6,800 | 40 |
What moves the price most
- Quality and size of training data
- Hosted fine-tuning or open models on your own GPUs
- How rigorous the evaluation must be
Skills and hourly rates
The skills named most often in these posts are Machine Learning (61%), Python (55%), Artificial Intelligence (35%) and Deep Learning (31%). Read this as the working stack for this kind of build, and as a checklist when assessing who should do it.
Hourly posts for this work typically offer $28 to $45 an hour, the middle half of posted rates. The median top of the range is $45 an hour across 40 hourly posts. These are rates in the open freelance market: agencies and in-house teams usually cost more.
Who is buying
54% of posts ask for expert-level talent. Buyers are most often based in the United States and the United Kingdom, with 44% in the United States. Among posts that state a company size, 93% come from companies of up to 10 people. A typical post draws about 12 applicants.
What to check before you commit
- Try better prompts and retrieval first, as they are often enough
- Hold back a test set before training
- Check the licence of the base model
Where the demand is
The countries with the most buyers for this build. Each page shows how that market compares.
Frequently asked questions
How much does LLM fine-tuning cost?
LLM fine-tuning typically costs about $3,500. Half of the 78 priced job posts we tracked fall between $420 and $13,700, and one in ten reaches $27,100 or more. That is 40% above the $2,500 median across all AI builds we track.
How long does LLM fine-tuning take?
29% of posts expect the work done in under a month, 50% in one to three months and 21% over a longer stretch. Work expected to take under a month has a median of $450, against $26,400 for over six months.
Why do estimates vary so much?
Fixed-price posts state a median of $400, while hourly posts work out at $11,500 on our estimate: 29 times as much. One likely reason is that fixed budgets tend to cover a small first step, while hourly posts describe sustained work. Scope matters most: quality and size of training data and hosted fine-tuning or open models on your own GPUs move the price the most.
What hourly rate should I expect?
Most hourly posts offer $28 to $45 an hour, with a median top rate of $45. Agencies and in-house specialists usually charge more than the open freelance market.
What skills does this work need?
Posts most often ask for Machine Learning, Python, Artificial Intelligence and Deep Learning.
Do I need an expert?
Posts asking for expert-level talent have a median of $6,800, 6.8 times the $1,000 for intermediate talent. 54% of posts ask for experts.
Where do these numbers come from?
From 78 public job posts published between December 2025 and November 2026: 38 fixed budgets as stated and 40 hourly posts we costed from their rate, expected length and assumed hours. They are what buyers offered, not signed contract prices.
About this data
These figures come from 78 public job posts published between December 2025 and November 2026: 38 fixed budgets as stated, and 40 hourly posts costed from their rate, expected length and assumed hours. They show what buyers offered, not signed contract prices, and hourly figures assume the work runs its full length. Read the method
Cite this page. The AI Build Index. "LLM fine-tuning: what it costs." Published by VIZIO AI. Updated 2026-11-04. https://aibuildindex.com/cost/llm-fine-tuning
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