LLM developers in the US bill about $55 to $165 per hour on vetted marketplaces, with agencies charging $150 to $250. Full-time base salaries generally range from $130,000 to $210,000. This is one of the youngest and hottest niches in software: rates are high, but so is the spread between engineers who have shipped reliable LLM features and those who have only experimented.
Vetted marketplace
$55–165
per hour · USA, 2026
Vetted marketplace · like HireDeveloperUSA.com
$55–$165/hour
Development agency
$150–$250/hour
In-house full-time · base salary
$130,000–$210,000/year
Add 25–40% for benefits, payroll taxes and overhead before comparing with hourly llm developers rates.
Junior
$55 – $85/hour
Mid-level
$85 – $125/hour
Senior
$125 – $165/hour
Skip the rate research — get matched with vetted llm developers in 48 hours, $0 until you hire.
Between $55 and $165 per hour on vetted marketplaces depending on seniority, $150 to $250 through an agency, or $130,000 to $210,000 base salary full-time.
LLM developers specialize in building on top of large language models: prompting, retrieval, evaluation, and integration. AI engineer is the broader title that can include classical ML and model training.
For basic API integration, yes, quickly. For reliable production features, the hard-won knowledge is in evaluation, retrieval quality, and failure handling, where an experienced contractor accelerates the team dramatically.
Demand production evidence: a shipped feature, its evaluation setup, and its cost profile. Titles and enthusiasm are abundant; measured results are what justify the top of the band.
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