CuavsSim
Generated from the two spec rows. Green marks the better value where a spec has a clear direction. Everything else is just different.
Cua
Cua · Agent framework
OSSMCP
Panel
6.85 spec wins
- Reliability
- 6.7
- Usefulness
- 7.2
- Cost
- 6.7
- Longevity
- 6.8
“It drives Linux, macOS, Windows and Android, so there is finally an agent that can ignore a notification on every platform you own.”
Sim
Sim · Agent framework
OSSMCP
Panel
6.54 spec wins
- Reliability
- 6.2
- Usefulness
- 6.7
- Cost
- 7.0
- Longevity
- 6.2
“Formerly Sim Studio, now Sim, saving you six characters and creating no confusion whatsoever.”
Spec by spec
| Spec | Cua | Sim |
|---|---|---|
| Architecture | ||
| Category | Agent framework | Agent framework |
| Runs | local, cloud, sandbox | cloud, local |
| Platforms | macos, linux, windows | macos, linux, windows, web |
| Context window | not documented | not documented |
| Protocols | ||
| MCP client | No | Yes |
| MCP server | Yes | No |
| Capabilities | ||
| Runs terminal commands | Yes | No |
| Multi-file edits | No | No |
| Git operations | No | No |
| Browser control | Yes | No |
| Sandboxed execution | Yes | No |
| Multi-agent orchestration | No | Yes |
| Headless / CI mode | Yes | No |
| Models | ||
| Backbone | any | any |
| Bring your own model | Yes | Yes |
| Local models | No | Yes |
| Cost | ||
| Pricing model | mixed | mixed |
| Starts at | n/a | $25/mo |
| Free tier | Yes | Yes |
| Bring your own key | Yes | Yes |
| Openness | ||
| Open source | Yes | Yes |
| License | MIT | Apache-2.0 |
| GitHub stars | 27,707 | 29,765 |
Which one would each critic pick
| Critic | Cua | Sim | Pick |
|---|---|---|---|
| El Juez | — | — | not enough reviews |
| El Amigo | 7.0 | 6.5 | Cua — Pick Cua when an agent has to use desktop software you cannot script; pick Browser Use if the work never leaves a web page, because that is a much smaller problem. |
| El Crítico | 6.5 | 5.8 | Cua — One Python interface spans hypervisors, containers and a hosted fleet, and a virtual machine does not fail the way a container fails, so the abstraction will leak where it hurts. |
| El Profesor | 6.8 | 6.8 | no preference |
| La Inversora | 6.3 | 6.5 | Sim — A thousand integrations plus self-hosting bundled into custom enterprise terms is the standard open-core ladder, and the enterprise tier is where this actually gets sold. |
| La Jefa | 6.0 | 5.8 | Cua — There is no seat price at all; the cloud bills $0.044625 per vCPU-hour plus $0.0223125 per GB-hour, so finance gets a forecast and I get a spend cap. |
| El Hacker | 8.5 | 7.8 | Cua — MIT, pip install cua, a driver install script, an MCP server so my own client can drive a desktop, and QEMU or Apple Virtualization locally with no cloud account. |
Picks are derived from each critic's own scores. Humans vote on matchups on the duels page.