Latest full-company annualized revenue values from Epoch AI, with ARR versus other bases, evidence class, confidence, and source date preserved.
Companies
AI companies by full company staff
7 companies ranked by full company staff.
4,500 people
OpenAI ranks first
Full company staff
7
Companies ranked
Aug 10
Snapshot recorded
2026 · Checked daily
All 7 companies by full company staff
OpenAI leads at 4,500 people; the middle of the board sits at 385.
- Ahead of second place
- 1,500
- Held by the top three
- 86%
- Middle of the board
- 385
- Below half the leader
- 5 of 7
Rank, name and full company staffMiddle 385
- 1OpenAI4,500 people
- 2Anthropic3,000 people
- 3Z.ai (Zhipu)883 people
- 4MiniMax385 people
- 5Mistral AI350 people
- 6DeepSeek300 people
- 7xAI300 people
Epoch AI release: 2026-08-10.
| Rank | Name | Full company staff | Why |
|---|---|---|---|
| 01 | OpenAI | 4,500 people | Showing |
| 02 | Anthropic | 3,000 people | This rank |
| 03 | Z.ai (Zhipu) | 883 people | This rank |
| 04 | MiniMax | 385 people | This rank |
| 05 | Mistral AI | 350 people | This rank |
| 06 | DeepSeek | 300 people | This rank |
| 07 | xAI | 300 people | This rank |
Why this rank
OpenAI on AI Companies by Full-Company Staff
Snapshot of Aug 10, 2026, 12:00 PM UTC · Link to this snapshot
Some explanation inputs are unavailable. Not published: the evidence frozen with this snapshot, comparable prior ranking.
Latest dated staff record per company whose Type is exactly Full company.
1
Rank on this board
4,500 people
Score
1
Inputs behind the score
75% confidence · 1 of 1 components evidenced
What the score is built from
1 of 1 evidencedEvery component evidenced · 1 evidence record each
| Component | Value | Contribution |
|---|---|---|
| Company full company staff | 4500.0000000000 | 4,500 |
Unchanged since the previous snapshot
No change in rankcomponent_history_unavailable
No component moved since the previous snapshot.
Where each number comes from
1 public recordsFull-company staffCompany full company staff · observed Aug 10, 2026, 12:00 PM UTC4,500 people75% confidence
- Source
- Epoch AI open datasets
- Grade
- A
- Freshness
- fresh
- Locator
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More in Companies
Revenue, CapEx, balance sheets, and control of the AI stack.
Cumulative closed primary equity funding from Epoch AI. Debt, secondary sales, discussions, cancelled rounds, and valuations are excluded.
Latest publishable annual compute-spend evidence from Epoch AI, with totals separated from derived inference-plus-R&D component sums and never labeled CapEx.
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