You have an existing ROS-based workflow
Check supported distributions, bridges, message interfaces and exact release compatibility on both sides. A generic ROS integration statement does not cover every version.
Curated comparison · Simulation integration
Isaac Sim vs Gazebo
Both are candidates for robotics simulation workflows. Scene preparation, sensor support, middleware integration and the selected release determine fit more directly than an overall simulator ranking.
Source contextPrimary specReviewed
Sources 4
isaac-sim/IsaacSim official repository
isaac-sim · Publication date not disclosed · Source accessed 2026-09-28
Official README inspected live. Repository code terms do not automatically cover model weights, data, or third-party assets.
Isaac Sim v6.1.0 release
NVIDIA · Published 2026-09-10 · Source accessed 2026-09-28
Exact tag or commit inspected through official GitHub metadata; no local benchmark execution implied.
gazebosim/gz-sim official repository
gazebosim · Publication date not disclosed · Source accessed 2026-09-28
Official README inspected live. Repository code terms do not automatically cover model weights, data, or third-party assets.
Gazebo Sim 10 Jetty release
Gazebo maintainers · Publication date not disclosed · Source accessed 2026-09-28
Exact tag or commit inspected through official GitHub metadata; no local benchmark execution implied.
Version and date boundaries matter. The exact revision below defines each column. A deployment of an earlier revision is not evidence that a newer revision is in production. Missing fields remain unknown.
On small screens, swipe the table horizontally. Each row carries its own source and review date.
| Decision dimension | NVIDIA Isaac Sim Exact revision / scope v6.1.0 Primary specReviewed Sources 1Isaac Sim v6.1.0 release NVIDIA · Published 2026-09-10 · Source accessed 2026-09-28 Exact tag or commit inspected through official GitHub metadata; no local benchmark execution implied. | Gazebo Exact revision / scope Gazebo Sim 10 Jetty; gz-sim10_10.0.0 Primary specReviewed Sources 1Gazebo Sim 10 Jetty release Gazebo maintainers · Publication date not disclosed · Source accessed 2026-09-28 Exact tag or commit inspected through official GitHub metadata; no local benchmark execution implied. |
|---|---|---|
| Developer The developer identity does not establish a deployment relationship. | NVIDIA Primary specReviewed Sources 1isaac-sim/IsaacSim official repository isaac-sim · Publication date not disclosed · Source accessed 2026-09-28 Official README inspected live. Repository code terms do not automatically cover model weights, data, or third-party assets. | Gazebo and Open Robotics community Primary specReviewed Sources 1gazebosim/gz-sim official repository gazebosim · Publication date not disclosed · Source accessed 2026-09-28 Official README inspected live. Repository code terms do not automatically cover model weights, data, or third-party assets. |
| Exact version Keep generations, checkpoints and software revisions separate. | v6.1.0 Primary specReviewed Sources 1Isaac Sim v6.1.0 release NVIDIA · Published 2026-09-10 · Source accessed 2026-09-28 Exact tag or commit inspected through official GitHub metadata; no local benchmark execution implied. | Gazebo Sim 10 Jetty; gz-sim10_10.0.0 Primary specReviewed Sources 1Gazebo Sim 10 Jetty release Gazebo maintainers · Publication date not disclosed · Source accessed 2026-09-28 Exact tag or commit inspected through official GitHub metadata; no local benchmark execution implied. |
| System or model type Choose alternatives that address the same decision. | Robot simulation application Primary specReviewed Sources 1isaac-sim/IsaacSim official repository isaac-sim · Publication date not disclosed · Source accessed 2026-09-28 Official README inspected live. Repository code terms do not automatically cover model weights, data, or third-party assets. | Robot simulation framework Primary specReviewed Sources 1gazebosim/gz-sim official repository gazebosim · Publication date not disclosed · Source accessed 2026-09-28 Official README inspected live. Repository code terms do not automatically cover model weights, data, or third-party assets. |
| Access conditions Availability of a paper is distinct from access to a model or service. | Public repository and downloadable simulator Primary specReviewed Sources 1isaac-sim/IsaacSim official repository isaac-sim · Publication date not disclosed · Source accessed 2026-09-28 Official README inspected live. Repository code terms do not automatically cover model weights, data, or third-party assets. | Public gz-sim source and ecosystem packages Primary specReviewed Sources 1gazebosim/gz-sim official repository gazebosim · Publication date not disclosed · Source accessed 2026-09-28 Official README inspected live. Repository code terms do not automatically cover model weights, data, or third-party assets. |
| License / reuse Code, checkpoints, datasets and assets can have different terms. | Apache-2.0 repository code; additional simulator components have separate terms Primary specReviewed Sources 1isaac-sim/IsaacSim official repository isaac-sim · Publication date not disclosed · Source accessed 2026-09-28 Official README inspected live. Repository code terms do not automatically cover model weights, data, or third-party assets. | Apache-2.0 gz-sim library Primary specReviewed Sources 1gazebosim/gz-sim official repository gazebosim · Publication date not disclosed · Source accessed 2026-09-28 Official README inspected live. Repository code terms do not automatically cover model weights, data, or third-party assets. |
| Inputs Observation and scene formats determine integration work. | USD scenes; robot descriptions; controller interfaces Primary specReviewed Sources 1isaac-sim/IsaacSim official repository isaac-sim · Publication date not disclosed · Source accessed 2026-09-28 Official README inspected live. Repository code terms do not automatically cover model weights, data, or third-party assets. | SDF worlds, models and plugins Primary specReviewed Sources 1gazebosim/gz-sim official repository gazebosim · Publication date not disclosed · Source accessed 2026-09-28 Official README inspected live. Repository code terms do not automatically cover model weights, data, or third-party assets. |
| Outputs An action policy, image generator and simulator return different outputs. | Simulated physics, sensors and synthetic data Primary specReviewed Sources 1isaac-sim/IsaacSim official repository isaac-sim · Publication date not disclosed · Source accessed 2026-09-28 Official README inspected live. Repository code terms do not automatically cover model weights, data, or third-party assets. | Physics, rendered sensors and transport messages Primary specReviewed Sources 1gazebosim/gz-sim official repository gazebosim · Publication date not disclosed · Source accessed 2026-09-28 Official README inspected live. Repository code terms do not automatically cover model weights, data, or third-party assets. |
| Integrations Verify exact versions, interfaces and support responsibilities. | URDF/MJCF robot imports; ROS interfaces; Isaac Lab learning workflows Primary specReviewed Sources 1isaac-sim/IsaacSim official repository isaac-sim · Publication date not disclosed · Source accessed 2026-09-28 Official README inspected live. Repository code terms do not automatically cover model weights, data, or third-party assets. | SDF models; Gazebo Physics, Rendering and Transport libraries Primary specReviewed Sources 1gazebosim/gz-sim official repository gazebosim · Publication date not disclosed · Source accessed 2026-09-28 Official README inspected live. Repository code terms do not automatically cover model weights, data, or third-party assets. |
| Compute Confirm requirements for the intended workload. | Not publicly disclosed | Not publicly disclosed |
Choose based on your constraints.
These are evaluation paths, not a ranking. Verify the current terms and run a task-specific trial before committing.
You need a rendered training environment
Test the required sensors, assets and computational workload. Review the licensing of scene assets and additional components independently from repository code.
Evidence gaps to resolve
- Published fields describe the identified revision only; configuration and source dates may differ.
- No matched independent operating trial is asserted by this comparison. Missing price, reliability and intervention figures remain unknown.
- Benchmark results require the same protocol, inputs and revision context. Cross-benchmark totals are not calculated.
Inspect the evidence
Sources & evidence
isaac-sim/IsaacSim official repository
isaac-sim · Repository · Publication date not disclosed · Source accessed 2026-09-28
License: Apache-2.0 repository code; NVIDIA and third-party component terms apply separately. Factual summary and attribution only; no upstream prose, images, weights, or dataset redistributed.
Official README inspected live. Repository code terms do not automatically cover model weights, data, or third-party assets.
Referenced by 5 records: NVIDIA · Agriculture · Physical AI Stack Explained · NVIDIA Isaac Sim · NVIDIA Omniverse
Isaac Sim v6.1.0 release
NVIDIA · Official release · Published 2026-09-10 · Source accessed 2026-09-28
Factual summary and attribution only; no upstream prose, images, weights, or dataset redistributed.
Exact tag or commit inspected through official GitHub metadata; no local benchmark execution implied.
Referenced by 2 records: Agriculture · NVIDIA Isaac Sim
gazebosim/gz-sim official repository
gazebosim · Repository · Publication date not disclosed · Source accessed 2026-09-28
License: Apache-2.0 library code. Factual summary and attribution only; no upstream prose, images, weights, or dataset redistributed.
Official README inspected live. Repository code terms do not automatically cover model weights, data, or third-party assets.
Referenced by 1 record: Gazebo
Gazebo Sim 10 Jetty release
Gazebo maintainers · Official release · Publication date not disclosed · Source accessed 2026-09-28
Factual summary and attribution only; no upstream prose, images, weights, or dataset redistributed.
Exact tag or commit inspected through official GitHub metadata; no local benchmark execution implied.
Referenced by 1 record: Gazebo