Until today, getting a robot into a simulator took 3 weeks. Now it takes a URL: simarena.ai

Show a robot a task and it'll copy you move for move. Move one thing, and the copy falls apart. That's behavior cloning, and it's why simulation matters: you let it see the task a thousand different ways before the real world rearranges it.

Winner #6: @codecopenflow CodecFlow is an open-source platform for building robots and autonomous operators. It brings simulation, compute, and deployment together so teams can build, train, and ship robots from one place instead of stitching together a different tool at every step. Its browser-based simulator, SimArena, lets anyone build and test a robot with no hardware or setup. Read more:

Every code change gets tested before it ships. Robot updates should too.

Train a robot in one perfect simulation and it breaks the moment the real world looks different. So you randomize everything, lighting, friction, colors, thousands of slightly-wrong worlds. It stops memorizing and learns the task. The real world becomes just one more variation.

booked an R1 EDU from the @UnitreeRobotics distributor here in Dubai the plan: improve the sim2real pipelines in SimArena, take browser built scenes, sensors, policies, datasets, and deploy them on real hardware most of the work is going to be on system ID UX. matching the URDF, actuator dynamics, and latency to the real R1 in the simulators, and making the flow as easy as possible going to document the whole thing on video. setup, sysid, the first transfer attempts, what breaks, what holds up. should be useful for anyone trying to close the sim2real gap

Open a browser, drag in a couple of robots, start collecting data.

Start today: simarena.ai

Spinning up your first Isaac Sim scene in 2026: NVIDIA account, RTX GPU, OpenUSD, URDF, sensors. Days before the robot moves. SimArena runs in your browser. Robot moving in a minute. Export to Isaac when you scale.

every service in SimArena (chat, training, sim, generation, etc.) was running separate, each doing its own auth and billing today they all run through one layer. which means we can route discounts on inference and compute to holders and partners

Five reasons the robotics stack makes you want to quit? simarena.ai

We kept noticing how many of you follow from the Chinese speaking side, so we started a Chinese language account. Everything we post here, in Chinese. Follow @CodecFlowCN.

Claude Fable 5 + Hermes one-shotted a documentary on how far robots have come. One single prompt: researched the history, pulled the archive footage, sequenced it, scored it, cut it, and ran narration through Higgsfield MCP. Robots were first judged on whether they could move, then whether they could work, then whether they could decide. Next test is trust. And trust gets earned in simulation. SimArena.

What's the idea behind SimArena?

Scenes in SimArena start by generating from a prompt or image, or by importing from storage or another platform. Every object is rebuilt in 3D, placed at real-world scale, in a scene that stays workable while it assembles. SimArena does it better than anything else out there.

Every roboticist has lost a week to a URDF file: meshes that won't load, inertias that are subtly wrong or joints that fight back. SimArena skips the hand-authoring. You import and start.

A robot doing real work. The rest is plumbing.

We have been building in the UAE for over a year. @SuperteamAE has been a big part of that: events, intros, and the early @Solana community that gave us reps before CT noticed. If you're a robotics builder in the UAE, reach out. We want to meet you.

SimArena is the easy way into the simulators you already trust.

Universities and bootcamps are coming for SimArena.

first tests adding wuji hand to simarena