Foundation Model Engineer.
Los Angeles.
$261,000
median salary, 21% above the national average
$194,000 to $340,000. Last updated April 2026.
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Data points to own the conversation.
Los Angeles is 18% more expensive than the national average. For Foundation Model Engineers, that shakes out to a median of $261,000, with the full range spanning $194,000 to $340,000. This highly specialized role commands premium compensation driven by direct experience training or fine-tuning large language models and multimodal models. Know the range before you walk in.
Salary range
Where do you fall?
Salary by experience
The gap between entry and lead level is typically $235,000. Where you land depends on years of experience and what you bring to the table.
Entry (0-2 yrs)
$170,000
to $209,000
Mid (3-5 yrs)
$222,000
to $274,000
Senior (6-9 yrs)
$287,000
to $339,000
Lead (10+ yrs)
$326,000
to $405,000
Salary trend
+6% YoYTotal compensation
Base salary is not the full picture. Equity, bonus, and signing can add $61,000 to the total package.
Base
$261,000
Equity
$34,000
Bonus
$22,000
Signing
$5,000
Estimated total: $322,000
How Los Angeles compares
Los Angeles, CA
$261,000
Cost of living: 18% above average
National Average
$215,000
Los Angeles is $46,000 above
Foundation Model Engineer salary by city
Salary by role in Los Angeles
What you should know
The Foundation Model Engineer landscape in Los Angeles is not what most salary sites will tell you. Los Angeles blends a thriving entertainment industry with a growing tech and startup ecosystem, often called Silicon Beach. The city's diverse economy spans aerospace, healthcare, fashion, and gaming. LA offers strong salaries that, while below San Francisco levels, pair with a broader lifestyle appeal and lower housing costs relative to the Bay Area. This highly specialized role commands premium compensation driven by direct experience training or fine-tuning large language models and multimodal models. Engineers who have participated in pre-training runs exceeding 1,000 GPU-hours earn 15 to 25% more. Expertise in training stability, data curation, and alignment techniques are the most valued differentiators in 2026 compensation negotiations.
ML engineers with large-scale training experience earning $140,000 to $190,000 advance to this specialized role at $160,000 to $280,000. Progression leads to Staff Foundation Model Engineer at $210,000 to $300,000 or research leadership. This is one of the most direct paths to Head of AI Research positions. In Los Angeles, those numbers run higher. The cost of living here is 18% above average, and employers adjust to compete.
Base salary is not the full picture. Total packages range from $300,000 to $550,000 with significant equity grants, research publication bonuses, and compute credits for personal projects. Frontier AI labs offer the highest total compensation, often 30 to 50% above enterprise employers for equivalent experience levels. And on the tax side: california's 13.3% top state income tax rate applies to LA earners as well. There is no city income tax, but the high state rate makes take home pay lower than cities in no income tax states. When someone quotes you $261,000, ask what the total package looks like. The gap between base and total comp is where real money hides.
On negotiation: Highlight cross industry skills. LA employers value candidates who bridge entertainment and tech, so framing your experience across verticals can unlock higher offers. The range for Foundation Model Engineers in Los Angeles runs from $194,000 to $340,000. That is not a narrow window. Where you land inside it depends almost entirely on whether you negotiate and how well you prepare.
Sources: SEC filings, H-1B LCA (DOL), BLS OES, 50+ job posting platforms. COL: BEA Regional Price Parities (2025). Data verified by Justin Bartak, Founder & Chief AI Officer. Last verified April 8, 2026. Full methodology
Considering a related role?
- A Director of Data Science in Los Angeles earns $264,000 (1% more)
- The highest-paying role in Los Angeles is Chief AI Officer at $377,000
Common questions.
Foundation Model Engineer salary in other cities
Other salaries in Los Angeles
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