Flatkey
One API key and one balance for 100+ official AI models and 1,000+ AI tools
Flatkey is a San Jose, California AI infrastructure platform, launched in July 2026, that gives developers one API key, one balance and one invoice for more than 100 official AI models (OpenAI, Anthropic, Google, DeepSeek, Kimi, GLM, Seedance and others) and more than 1,000 tools such as search, browsers and data enrichment. Every call goes to the provider's official endpoint. Because it buys capacity in volume, most models are priced at about 80% of list price and some at 60% or less. It works as a drop-in replacement for OpenAI-compatible clients, with plans from $10 a month plus pay-as-you-go credits. On 23 September 2026 the company said more than 10,000 developers had adopted it and that Flatkey and its sister company Realset AI, a training-data lab also founded by Hunter Guo, had jointly raised a $10M Series A. No investors were named.
AI
📍 San Jose, CA
Current Valuation
Private
PRIVATE
IPO Outlookprivate
Is Flatkey going public?
No. Flatkey is private and has not filed to go public. There is no S-1 on file.
What is Flatkey's valuation in 2026?
No confirmed valuation is on record for Flatkey. The roster shows funding and investors where they are public; it does not estimate a mark.
Has Flatkey filed an S-1?
No public S-1 is on file for Flatkey.
How much has Flatkey raised?
Flatkey has raised $10M in total across 1 disclosed round, most recently a Series A of $10M in Sep 2026.
Is Flatkey publicly traded — can you buy Flatkey stock?
No. Flatkey is a private company — its shares are not listed on any exchange and there is no ticker. The routes to exposure are pre-IPO secondary marketplaces and funds (accredited investors), employee tender offers when the company runs one, and public companies with read-through exposure. QuantLogix maps every route it can verify for Flatkey on its Pre-IPO Access Desk.
Answers are derived from the roster record shown on this page — filing status, last round and confirmed marks. Where the record is silent, the answer says so rather than guessing.
Company Profile
Growth
10,000+ developers in the two months after its July 2026 launch
Last Round
Series A — $10M (Sep 2026)
Fundraising Status
Series A · $10M · this month
privateTotal raised $10M1 disclosed rounds
Funding History
| Round | Amount | Date | Lead Investor | Post-Money |
|---|
| Series A | $10M | Sep 2026 | — | — |
Vertical Intelligence — AI / ML
AI / ML registry data for Flatkey has not been collected yet — the weekly vertical sweep hasn't reached this company. Check back soon.
Talent Signal
Hiring data for Flatkey has not been collected yet — the monthly talent sweep hasn't reached this company. Check back soon.
Products
- Flatkey unified API (OpenAI-compatible)
- Model and tool marketplace on a single balance
AIAI InfrastructureDeveloper ToolsAPILLM Gateway
Private-company numbers are not real-time. Reflects publicly disclosed valuations from press releases, news reports, and tender offers as of recent date. Refreshed quarterly.