OpenAI vs Anthropic: employee equity compared
Secondary market prices, valuation trajectory, equity structure, and liquidity outlook for employees choosing between OpenAI and Anthropic.
OpenAI
Maker of ChatGPT, GPT-5, Sora and the OpenAI API.
IPO highly anticipated, likely 2026–2027 given massive scale. One of the most closely watched pre-IPO names in tech.
High-growth AI play; PPU (no exercise decision needed); fast-moving valuations reward timing
Anthropic
AI safety lab and maker of Claude. Series H closed May 2026 at $965B ($65B raised). ARR ~$47B. Note: Anthropic placed secondary transfer restrictions in May 2026 — unauthorised transfers deemed invalid.
IPO likely 2027–2028. Secondary liquidity is restricted — Anthropic issued transfer-restriction notices to Forge, Hiive, and Sydecar in May 2026. Board pre-approval required for any transfer.
Highest-ARR private AI lab ($47B); RSU (no exercise cost); restricted secondary market limits liquidity options
Key differences for employees
Equity structure
OpenAI grants PPU — a profit participation unit unique to OpenAI. No strike price, no AMT risk. You receive cash or shares at distribution events. Anthropic grants RSU — no exercise cost.
Secondary market signal
The secondary market prices OpenAI at +27% vs its last primary round ($852B → $1.1T, source: Forge). Anthropic trades at +3% vs its last round ($965B → $995B, source: Hiive). A higher secondary premium typically signals stronger investor demand and potentially better near-term liquidity for employees looking to sell.
Revenue and growth
OpenAI runs at $24B ARR, growing +60% YoY (fast). Anthropic runs at $47B ARR, growing +400% YoY (hypergrowth). Revenue growth rate matters for equity because it drives the peer-multiple valuation — the method most correlated with exit multiples.
Liquidity timeline
OpenAI: IPO highly anticipated, likely 2026–2027 given massive scale. One of the most closely watched pre-IPO names in tech.
Anthropic: IPO likely 2027–2028. Secondary liquidity is restricted — Anthropic issued transfer-restriction notices to Forge, Hiive, and Sydecar in May 2026. Board pre-approval required for any transfer.
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