OpenTag - is an AI coworker that lives in your Slack and Teams. It has full context on your company, so it can answer questions, join calls, and take real work off your team's plate.
Sell to companies like these? Paste your website and see 10 with a filed reason to buy this month. Free.
Example from a real report (our sample on Target): “Target eliminated approximately 1,800 corporate positions, with around 1,000 employees receiving layoff notices and the remainder accounted for by eliminating open roles.” Source: NBC News
OpenTag - is an AI coworker that lives in your Slack and Teams. It has full context on your company, so it can answer questions, join calls, and take real work off your team's plate. OpenTag also keeps your company wiki and knowledge base up to date automatically, so your team's knowledge never goes stale or walks out the door.
What the site is built with
Next.jsframeworkVercelhosting
Read from the page's own HTML and response headers on 10 September 2026, at https://www.tryopentag.com/. Each badge matched a string the site serves about itself — hover one to see which. Nothing here is a traffic, ranking or revenue figure: those cannot be read off a page and are not claimed.
Checked away from the directory entry. What is below does not come from the company's Y Combinator page.
OpenTag is the model-agnostic AI coworker: eighty models to route to, up to 70% off what a tagged task costs, and never in the business of selling you tokens.
The title and description the site itself served, answering 200. Not a cached copy and not the company's directory entry — what was live when we asked.
Tony Kam
Founder/CEO
Co-founder and CEO at Open Tag. Previously at Tesla and founded Lilac Labs (S24). Studied EECS at Berkeley.
Wilson Nguyen
Founder
Co-founder at OpenTag. Previously founding engineer at Lilac Labs (YC S24). Studied Computer Science at UC Berkeley.
Shelden Shi
Founder/CTO
Co-Founder and CTO at OpenTag. Previously founded Lilac Labs (S24). Studied CS and CogSci at UC Berkeley.
Founders, titles and bios as the company published them. Photographs are our own copies of the ones on that record, so they do not break when the original link expires.
No investor is drawn from a Form D — the form states how many invested and never who. The one investor on this graph is named because a batch has exactly one.
Want the whole picture on OpenTag?
Example from a real report (our sample on Target): “Target eliminated approximately 1,800 corporate positions, with around 1,000 employees receiving layoff notices and the remainder accounted for by eliminating open roles.” Source: NBC News
A Full Report on OpenTag: verified, sourced, every claim cited, ready in a few minutes. See pricing.
What the Full Report on OpenTag covers
The Short Answer
Which Company This Is
What They Do, And How The Money Works
Who Runs It, And How To Reach Them
The Money: Funding, Valuation, Runway
Who Pays Them, And Who They Are Up Against
Warning Bells
Sources
8 cited sources found
Plus the sections for what you are deciding, which you pick after ordering.
You get an alert in MentionFox the next time this company shows up.
Is this you?
If you're behind OpenTag: acceptance into a YC batch is one of the few weeks a young company gets looked up by people who matter — investors, other founders, press. FoxPlug turns the commits, deploys, and releases you're already making into that story automatically, so anyone who looks finds something current. GetFoxChat puts a guide on your own site so the people YC's own page just sent you don't read one line and leave.
