Available in q1 2026
Simulate years. In minutes
Simulate your entire software architecture without changing a single line of code. Discover critical bugs that would otherwise take years to find.
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See how Eigen works (3m)
See how Eigen works (3m)
Frequently asked questions
Everything you need to know about Eigen. Find answers to the most common questions below.
What is Eigen?
Eigen is an autonomous simulation testing platform designed to seamlessly integrate with your existing software. It provides a fully deterministic environment, enabling you to efficiently identify and resolve elusive bugs that might otherwise remain undetected for years. With Eigen, you gain precision, reliability, and accelerated debugging—ensuring you can always reproduce bugs.
What is deterministic simulation testing?
Eigen is a cutting-edge platform for Deterministic Simulation Testing (DST). It runs your software in a fully deterministic environment, operating at accelerated speeds far beyond real-time. This ensures that any bugs are not only detected quickly but can be consistently reproduced, offering a reliable and efficient solution for thorough software validation.
What is autonomous testing?
We meticulously tracks your program’s execution path within our fully deterministic environment, running at accelerated speeds. Our algorithms automatically generates new inputs to explore your program’s state space, uncovering potential bugs with precision. Beyond input modification, Eigen empowers you to inject configurable system failures—such as packet drops or file corruption—all of which are fully replayable, ensuring consistent and comprehensive testing tailored to your needs.
Can I reproduce bugs locally?
Yes! When bugs are identified through autonomous testing, the platform provides a unique event ID. Using this ID with our command-line interface (CLI), you can locally recreate your entire system stack at the precise moment the bug occurred. Within this deterministic environment, you have the flexibility to rewind or advance time, connect your debugger, and address the issue—all from the comfort of your own setup, streamlining the debugging process with precision and control.
Do I need to change my code?
In most scenarios, no code changes are required. The platform supports OCI containers, which can be automatically converted for compatibility. However, in specific cases—such as when your software relies on random number generators—adjustments may be necessary. Here, you’ll need to integrate our pseudo-random generator, which is automatically seeded by the runtime, ensuring seamless deterministic behavior.
Are you open-source?
During development, to enable rapid iteration, the project has been kept closed-source. At launch, the runtime component will be released as open-source. However, the cloud platform will remain closed-source to maintain its operational integrity and support ongoing enhancements.
How much will this cost?
Pricing is based on the number of simulations actively running. While a single simulation can test your system, it’s often insufficient for comprehensive state space exploration. To maximize coverage and effectively uncover potential issues, we recommend running multiple concurrent simulations. As a general guideline, aim for twice as many simulations as the number of services in your system, ensuring thorough testing tailored to your architecture’s complexity.
Are you using AI?
Not in the way you might think—no large language models are involved. However, our premium offering, "Autonomous Business Testing," leverages a reinforcement learning model. When you opt into this feature, we train a dedicated model that learns to interact with your service, mastering its functionality to identify and exploit edge cases that could cause failures. Unlike traditional methods like bit flips or input alterations, this intelligent model actively explores your product’s behavior to uncover vulnerabilities with precision.
What is Eigen?
Eigen is an autonomous simulation testing platform designed to seamlessly integrate with your existing software. It provides a fully deterministic environment, enabling you to efficiently identify and resolve elusive bugs that might otherwise remain undetected for years. With Eigen, you gain precision, reliability, and accelerated debugging—ensuring you can always reproduce bugs.
What is deterministic simulation testing?
Eigen is a cutting-edge platform for Deterministic Simulation Testing (DST). It runs your software in a fully deterministic environment, operating at accelerated speeds far beyond real-time. This ensures that any bugs are not only detected quickly but can be consistently reproduced, offering a reliable and efficient solution for thorough software validation.
What is autonomous testing?
We meticulously tracks your program’s execution path within our fully deterministic environment, running at accelerated speeds. Our algorithms automatically generates new inputs to explore your program’s state space, uncovering potential bugs with precision. Beyond input modification, Eigen empowers you to inject configurable system failures—such as packet drops or file corruption—all of which are fully replayable, ensuring consistent and comprehensive testing tailored to your needs.
Can I reproduce bugs locally?
Yes! When bugs are identified through autonomous testing, the platform provides a unique event ID. Using this ID with our command-line interface (CLI), you can locally recreate your entire system stack at the precise moment the bug occurred. Within this deterministic environment, you have the flexibility to rewind or advance time, connect your debugger, and address the issue—all from the comfort of your own setup, streamlining the debugging process with precision and control.
Do I need to change my code?
In most scenarios, no code changes are required. The platform supports OCI containers, which can be automatically converted for compatibility. However, in specific cases—such as when your software relies on random number generators—adjustments may be necessary. Here, you’ll need to integrate our pseudo-random generator, which is automatically seeded by the runtime, ensuring seamless deterministic behavior.
Are you open-source?
During development, to enable rapid iteration, the project has been kept closed-source. At launch, the runtime component will be released as open-source. However, the cloud platform will remain closed-source to maintain its operational integrity and support ongoing enhancements.
How much will this cost?
Pricing is based on the number of simulations actively running. While a single simulation can test your system, it’s often insufficient for comprehensive state space exploration. To maximize coverage and effectively uncover potential issues, we recommend running multiple concurrent simulations. As a general guideline, aim for twice as many simulations as the number of services in your system, ensuring thorough testing tailored to your architecture’s complexity.
Are you using AI?
Not in the way you might think—no large language models are involved. However, our premium offering, "Autonomous Business Testing," leverages a reinforcement learning model. When you opt into this feature, we train a dedicated model that learns to interact with your service, mastering its functionality to identify and exploit edge cases that could cause failures. Unlike traditional methods like bit flips or input alterations, this intelligent model actively explores your product’s behavior to uncover vulnerabilities with precision.