TradeSun spent years building ASTRA for banks that need AI to read trade documents, pull out the numbers, and flag the risks. First use in May 2021. Federal registration No. 6,746,198 issued May 31, 2022. Then OpenAI put the exact same word on GPT-6 Astra, launched September 3, 2026.
On October 5, 2026, TradeSun filed in the Northern District of California, case No. 3:26-cv-11360, against OpenAI OpCo LLC. The complaint is reverse confusion: the junior user is so large that customers are taught “Astra means OpenAI.” Anyone who then sees TradeSun’s older product is left wondering whether it is OpenAI’s, built on OpenAI’s model, or simply the imitator trying to hitch a ride.
The products overlap. Both do document reading, data extraction, reconciliation, and risk screening for financial institutions and enterprises. TradeSun says OpenAI, a company that registers and enforces its own marks, could have found the 2022 registration with a knockout search of the Principal Register. Instead the name is now on a flagship model and specialized versions including Astra for Law.
OpenAI’s response: “This complaint lacks any merit whatsoever.” No ruling yet. TradeSun wants the name stripped from OpenAI products, a finding of infringement, and the profits attributable to the use. Founder Nigel Hook put it plainly: “Being one of the biggest technology companies in the world does not entitle OpenAI to our trademark.”
This is the lookalike that does not need a one-letter shift or a mascot cousin. The word is identical. The goods sit in the same AI-software neighborhood. The senior user now risks watching its own name harden into someone else’s brand in public.
What the case already shows
Offices often will not stop a confusing mark on their own. Relative grounds are the owner’s problem. Opposition windows are short (typically 30-90 days after publication). After registration, the fight gets expensive. Failure to watch lookalikes is how rights weaken: dilution, customer mix-ups, blocked expansion, a worse story at due diligence. Exact copies are rare; the real damage is one-letter shifts, phonetic twins, mascot cousins, and packaging that feels familiar at a glance. Watching the register is cheaper than a roadside rebrand.
Further reading on why monitoring exists and what happens if you wait.
The Astra name was already TradeSun’s problem before OpenAI printed it on a model. The only cheap moment is before the lookalike hardens.