The internet just discovered a fridge-sized robot that sits on a fishing boat and finishes each fish in about seven seconds. Shinkei Systems calls it Poseidon. A Nov. 6 X thread by Ole Lehmann branded the company “the most absurd AI startup ever,” and Dealroom says that thread drew millions of views. The pitch is not a gadget you buy. It is industrial ike jime, automated with computer vision, then sold as premium fish under the Seremoni brand.
we have a winner for the most absurd AI startup ever
this Peter Thiel backed company uses AI robots to stab fish in the brain so they taste better and last up to 3x longer
it’s called Shinkei and it modernizes a centuries-old Japanese technique
dozens of Michelin-star
— Ole Lehmann (@itsolelehmann) November 6, 2026
What Poseidon actually does
Ike jime is a traditional Japanese harvest method: end the fish quickly, then drain blood so stress hormones and lactic acid do not trash the meat. On most commercial boats, fish still die by suffocation in a pile, which is slow and hard on flavor. Poseidon is Shinkei’s deck unit. Crew feed a fish into the machine. Computer vision IDs the species and finds the brain and gills. The robot then completes a spike-and-cut cycle in about seven seconds, and the fish goes into an ice slurry. Shinkei’s own site and press coverage pitch longer shelf life and better texture without freezing. We are keeping the visuals food-and-tech here, not gore.
Core Memory’s Ashlee Vance documentary on the company (YouTube, uploaded Sept. 4, 2026, about 14 minutes) is the long-form watch if you want the boat-deck tour. Title: “The Machine That Could End Japan’s Sushi Empire.”
Free robots, premium catch, Seremoni plates
The business model is the other half of why the thread went nuclear. Shinkei does not sell Poseidon to crews as a catalog SKU. Multiple reports say the company places the machines free on commercial vessels, buys the processed catch at a premium, then sells through distributors and its consumer brand Seremoni. TechCrunch (June 2026) describes a Tacoma processing plant and restaurants totaling about 50 Michelin stars among customers. AgFunderNews covered a June 2025 $22 million Series A co-led by Founders Fund and Interlagos (after a $6 million seed). HQ is El Segundo. Co-founder and CEO is Saif Khawaja; co-founder Reed Ginsberg is a former SpaceX engineer.
Official stops: shinkei.systems and seremoni.com. There is no Amazon ASIN for Poseidon itself, so this sits in FYI.
GadgetKing take
Calling it absurd is half the joke and half the compliment. Chatbots are everywhere. A vision-guided harvest robot that makes sashimi-grade logistics pencil out is a weirder, meatier AI story. If you cook, the interesting part is quality and waste: less stress chemistry, longer cold-chain window, American boats feeding Michelin kitchens. If you just came for the meme, the Lehmann thread and the Core Memory video deliver. Either way, this is not a weekend DIY build and not a cart add. It is a supply-chain robot that went viral because it sounds ridiculous until the unit economics show up.
Sources: Dealroom (Nov. 6, 2026 viral roundup), Ole Lehmann on X, TechCrunch, AgFunderNews, Shinkei Systems, Seremoni and Core Memory on YouTube. Images: Core Memory video still (01), TechCrunch illustration (02), Seremoni brand photos (03, 05), AgFunderNews founders portrait (04).
More weird robots and kitchen-adjacent gear: Curbie’s trash-bin robot, Tau’s robot maids, robot dogs racing Mount Tai and Nekojita FuFu, the cat that cools your ramen.
