the self-improving agent computer.

introducing: cosein T1 · soon · 2026
die feierabendmaschine.
hand it a job that takes days. it works your computer while you check in, give direction or take over — and when you log off, the project keeps moving.
the bottleneck
managing agents is a job now.
today, you carry the context between tools, check every result and tell each agent what’s next. add more agents, and your attention runs out first.

long-horizon
one job. for days.
one agent researches the parts. another writes the tests. the board is routed in an engineering app on your computer. t1 keeps all three on the same job.
every agent on the job, and the step it’s on — check in or take over any time.
a live view of the connected computer, where the work happens.

access
know the step. reach the app.
an agent that can’t reach the app is stuck. your computer sees t1 as a monitor plus a usb keyboard and mouse, so your agents can watch the screen, type and click. add the cosein app on your mac and it does more.
self-improving
it gets better at your work.
it learns from each job, and the steps you keep become skills. the next job doesn’t start from a blank prompt.
- runone job, start to finish
- reviewyou pick the steps worth repeating
- start aheadthe next job begins from there

coordination
an agent that manages your other agents.
it decides what’s next, hands results between them and checks the work. on t1, you give direction and review the decisions that matter.
what keeps the job moving.
one agent keeps track of who does what, and in what order.
a decision made in one tool still counts in the next.
a session ends. the job doesn’t.
the screen comes in. keys and clicks go out.
steer it, or do the step yourself.
a procedure you’ve reviewed is one it can repeat.
where the job stands, on t1’s own screen.
anything irreversible waits for you. nothing else does.
a short list.
one press for anything irreversible — send, delete, pay, deploy. everything else just runs.
soon · 2026
the list hears first.
the list gets the link before it’s public.
launch notifications only. unsubscribe any time.
about.
cosein builds AI-native software and hardware. cosein AI is the software platform. cosein T1 is the hardware that lets AI agents work on your computer while you’re away. the last word sits in your hand.

