AirSim
Open source simulator for autonomous vehicles built on Unreal Engine / Unity, from Microsoft AI & Research
Our verdict
A notable project that carries real maintenance risk. This assessment is derived from GitHub's own repository metrics on 2026-08-30, not from hands-on testing.
Open source simulator for autonomous vehicles built on Unreal Engine / Unity, from Microsoft AI & Research. The project is written primarily in C++, published without a recognised SPDX licence, and has 18,426 stars and 4,916 forks on GitHub. 247 contributors have committed to it, and the most recent push was 2026-06-30. The latest tagged release is v1.8.1-windows (2022-07-18). Figures come from the GitHub API on 2026-08-30 and are refreshed daily; the score below weighs adoption, maintenance, release discipline, contributor breadth, licence clarity and issue hygiene.
Repository
- Licence
- Not declared
- Language
- C++
- Last push
- 2026-06-30
Releases
-
v1.8.1-windowsv1.8.1 - Windows -
v1.8.1v1.8.1 - Linux -
v1.8.0-windowsv1.8.0 - Beta - Windows -
v1.8.0-linuxv1.8.0 - Beta - Linux -
v1.7.0-linuxv1.7.0 - Linux -
v1.7.0-windowsv1.7.0 - Windows
Pros and cons
Pros
Cons
Pricing
- Free tierYes
- LicenceNot declared
- Self-hostYes, source is public
- Public price listNot published
AirSim does not publish a web price list. For consumer apps that usually means pricing appears inside the product; for enterprise tools it means talking to sales. Why we do this
Visit microsoft.github.ioTrends
Price points are recorded when a price moves, not on a schedule, so a flat run means the price held. Release cadence comes from GitHub releases. A series appears only once we have watched it for long enough to have more than one observation.
User reviews
No one has reviewed AirSim here yet. Reviews are moderated before they appear, and our own score is editorial and separate from user ratings, though once reviews land they do lift it.
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Side by side
| Tool | Our score | From | Free tier | Best for | |
|---|---|---|---|---|---|
| AirSim this page | 4.1 | - | Yes | ||
| Roboflow Supervision | 7.7 | - | Yes | ||
| Ultralytics | 7.7 | - | Yes | ||
| OCRmyPDF | 7.6 | - | Yes | ||
| Tesseract | 7.6 | - | Yes | ||
| Frigate | 7.5 | - | Yes | ||
| PaddleOCR | 7.5 | - | Yes |
Questions
Is AirSim free?
Yes. AirSim advertises a free tier on its own site.
How much does AirSim cost?
AirSim does not publish a web price list. For consumer apps that usually means pricing appears inside the product; for enterprise tools it means talking to sales.
Is AirSim open source?
Yes. AirSim is a public repository released under Not declared. You can self-host or inspect the source directly.
How is AirSim scored here?
AirSim scores 4.1 out of 10. That comes from a desk review of public evidence, which is capped at 8.5 out of 10: public pricing, documentation, maintenance signals and how much we could actually verify. Affiliate relationships are excluded from scoring entirely. The full rubric is published on our methodology page.