Security is part of the product
Pier touches your repositories, so how it handles your code is a design constraint, not an afterthought. Here is exactly what runs where, and what leaves your machine.
The agent runs locally as a single binary, under your user account, and works on the repositories you point it at. There is no background service watching your filesystem and nothing installed that you did not run yourself.
In local-only mode your code never leaves your environment. When a task uses a hosted model, that call is opt-in and clearly indicated before it runs, and only the prompt the task needs is sent to the model platform you selected over an encrypted connection. Alphabench does not build models. The data we store is never used to train any model by Alphabench. Each platform (Sarvam AI, DeepSeek, OpenRouter, or Fireworks AI) handles the data it receives under its own data and compliance policies. We do not store your source code on our servers.
Runs on your machine
Pier is a single binary that executes locally. It reads and edits files in the repositories you point it at, under your user account, with no background daemon.
You stay at the gateway
Every change is diffed and gated for your review before it touches a file, and commands are surfaced before they run. The agent acts; you stay the operator.
Opt-in cloud calls
In local-only mode your code never leaves your environment. When a task uses a hosted model, the call is opt-in and clearly indicated, and only the prompt that task needs is sent over TLS.
You choose the model platform
Prompts for the model you select go to that model's platform (Sarvam AI, DeepSeek, OpenRouter, or Fireworks AI). Each provider has the right to process data under its own data and compliance policies. The picker always shows which model you are on.
Retention you control
Synced conversation threads can include slices of your code; turn syncing off anytime with local mode, and delete your account to erase them. Per-request logs are content-erased after 30 days. Alphabench does not build models, and the data we store is never used to train any model by Alphabench.
Telemetry you control
There's no telemetry you didn't ask for. Any usage reporting is documented and can be turned off; the defaults favour your privacy.
Found something that looks off, or have a security question before you roll Pier out on a sensitive repo? Email hello@piercode.com and we will get back to you. Pier is open source, so you can also read the code and open an issue on GitHub. For how we handle account and analytics data, see our privacy policy.
Trademarks & affiliation
Pier is an independent product built and operated by Alphabench LLP. It is not affiliated with, endorsed by, or sponsored by any model provider. Pier routes requests to third-party model platforms, including Sarvam AI, DeepSeek, OpenRouter, and Fireworks AI. Each provider has the right to process data sent to its platform under its own data and compliance policies. “Pier”, “Sarvam AI”, and any related marks are the property of their respective owners and are referenced here only to describe that underlying technology.
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