Interview Questions156

    AI Company Valuation: Emerging Frameworks

    How to think about valuing AI companies across the stack, from foundation model providers to AI-native applications, and what metrics matter.

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    4 min read
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    3 interview questions
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    Introduction

    AI companies represent the most challenging valuation problem in TMT today. Traditional frameworks struggle with companies that are growing at triple-digit rates, burning billions in compute infrastructure, and operating in a market where the competitive landscape shifts quarterly. AI captured nearly 50% of all global venture funding in 2025 (up from 34% in 2024), with $202.3 billion invested in the sector, a 75% year-over-year increase. Foundation model companies alone captured $80 billion in 2025, representing 40% of all global AI funding. The valuations are staggering: OpenAI raised at an $840 billion valuation on $14.2 billion in revenue, Anthropic at $380 billion on a $2.5 billion run rate. For TMT investment bankers, developing frameworks for AI valuation is essential as AI-driven deal activity accelerates across M&A, growth equity, and capital markets.

    Valuation by AI Stack Layer

    The AI ecosystem separates into three layers, each requiring a different valuation approach.

    Foundation Models, Infrastructure, and Applications

    Foundation model companies (OpenAI, Anthropic, Google DeepMind, Mistral) build large language models that serve as the infrastructure for AI applications. These companies are valued on a combination of compute capacity (GPU fleet size, cloud infrastructure commitments), model performance (benchmark scores, capability breadth), and revenue growth (API revenue, consumer subscription revenue). OpenAI's more than 900 million weekly active users and 50+ million consumer subscribers represent unprecedented engagement metrics for an AI company. Infrastructure providers supply the compute, data, and tools that AI companies need: semiconductor companies (NVIDIA, AMD), cloud platforms (AWS, Azure, Google Cloud), and data infrastructure companies. These are valued using traditional TMT frameworks with AI-specific growth premiums. Public AI infrastructure companies traded at 23.4-35x revenue in 2025. AI-native applications build products that use AI models (whether proprietary or third-party) to solve specific business problems. These companies are valued most similarly to SaaS businesses but with premiums for defensible data moats, proprietary model capabilities, and domain-specific training data.

    Key Metrics for AI Valuation

    Beyond standard SaaS metrics (ARR, NRR, gross margin), AI companies introduce sector-specific metrics that affect valuation.

    Gross margin is particularly important because AI companies face significant compute costs that traditional SaaS companies do not. A SaaS company with 80% gross margins and an AI company with 55% gross margins may have similar revenue, but the AI company's lower margins mean less of each revenue dollar flows to the bottom line, which should compress revenue multiples. OpenAI's gross margins have been estimated in the 50-60% range due to GPU inference costs, compared to 75-85% for traditional SaaS. As model efficiency improves and inference costs decline, AI gross margins are expected to expand toward SaaS-like levels, and this margin trajectory is a key valuation input.

    Compute commitments provide visibility into infrastructure investment and future capacity. OpenAI's cumulative cloud commitments exceed $500 billion (including $250 billion with Microsoft Azure, $38 billion with AWS, and approximately $300 billion with Oracle), representing some of the largest infrastructure deals in technology history. These commitments are both an asset (guaranteed capacity to serve growing demand) and a liability (fixed costs that must be absorbed even if revenue growth decelerates).

    Interview Questions

    3
    Interview Question #1Medium

    How do you value an AI company, and what makes it different from traditional SaaS valuation?

    AI company valuation requires adjustments to the SaaS framework because AI economics differ in three fundamental ways.

    1. Lower gross margins. AI inference costs (running models to serve predictions) create significant variable costs. Traditional SaaS: 70-85% gross margins. AI-native: 50-65%. This means an AI company at 10x revenue has a higher EV/Gross Profit than a SaaS company at the same multiple. Always compare on EV/Gross Profit for apples-to-apples analysis.

    2. Higher R&D intensity. AI companies spend heavily on compute for model training, data acquisition, and specialized ML talent. R&D as a percentage of revenue can exceed 50% in the early stages, compared to 20-30% for typical SaaS.

    3. Defensibility uncertainty. The durability of AI competitive advantages is unclear. Proprietary training data creates a moat, but open-source models may commoditize AI capabilities over time. Valuation should reflect this uncertainty through higher discount rates or lower multiples.

    Valuation approach: Use EV/Gross Profit (not EV/Revenue) benchmarked against a blend of SaaS peers (adjusting for growth) and AI-native peers. Apply scenario-based DCF to capture the wide range of outcomes. Premier public AI infrastructure companies commanded 23-35x revenue multiples in 2025, while applied AI companies traded at 10-20x.

    Interview Question #2Hard

    An AI startup generates $50 million in revenue at 55% gross margins and is growing 100%. A comparable SaaS company generates $50 million in revenue at 80% gross margins and is growing 40%. If the SaaS company trades at 15x revenue, what multiple should the AI startup trade at?

    SaaS company: $50M revenue x 80% = $40M gross profit. At 15x revenue, EV = $750M. Implied EV/Gross Profit = $750M / $40M = 18.75x.

    AI startup: $50M revenue x 55% = $27.5M gross profit.

    Step 1: Adjust for growth differential. The AI company grows 100% vs 40% for SaaS. Higher growth justifies a premium. A rough rule: each 10 points of growth adds 1-2x to the gross profit multiple. A 60-point growth advantage might add 6-12x. Let us apply a 50% premium to the gross profit multiple: 18.75x x 1.5 = 28.1x gross profit.

    Step 2: Apply to AI gross profit. EV = $27.5M x 28.1 = approximately $773 million.

    Step 3: Convert to revenue multiple. $773M / $50M = 15.5x revenue.

    So despite dramatically higher growth (100% vs 40%), the AI startup trades at a similar revenue multiple (15.5x vs 15x) because its lower gross margins reduce the value of each revenue dollar. This is why EV/Gross Profit is the right comparison framework for AI vs SaaS.

    Interview Question #3Hard

    How would you value a company like OpenAI that has both a research mission and commercial operations?

    Valuing a hybrid research/commercial AI entity requires separating the business into distinct components.

    Commercial operations (ChatGPT, API): Value on EV/Revenue or EV/Gross Profit, benchmarked against AI-native application companies. Revenue reached approximately $13 billion in 2025, with the annualized run rate approaching $20 billion by year-end. At 20-30x revenue (consistent with high-growth AI applications), the commercial business alone could be valued at $260-400 billion.

    Research platform (GPT model development): Value based on strategic optionality. The ability to develop frontier AI models creates future commercial products, enterprise partnerships, and licensing revenue. This is analogous to a pharmaceutical company's R&D pipeline: value the option on future breakthroughs.

    Compute infrastructure: The massive GPU fleet (reportedly 100,000+ H100/H200 GPUs) has standalone value as an infrastructure asset.

    Key challenges:

    1. Governance structure. OpenAI's capped-profit structure limits investor returns, which should reduce the valuation relative to a traditional equity structure.

    2. Competitive moat uncertainty. Open-source models (Meta's Llama, Mistral) are narrowing the capability gap, threatening the durability of OpenAI's technology advantage.

    3. Unit economics. Inference costs are high and scaling rapidly with usage. The path to sustainable margins is unclear.

    OpenAI's valuation has escalated rapidly: a $300 billion valuation in its March 2025 funding round grew to $730 billion in its February 2026 round (a $110 billion raise from Amazon, NVIDIA, and SoftBank), reflecting the speculative premium the market assigns to frontier AI positioning.

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