> ## Documentation Index
> Fetch the complete documentation index at: https://docs.prem.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Changelog & Release Notes

> Unified changelog and release notes for the Confidential API.

## 2026-09-24

### Decisions (Zero Data Retention)

Prem now answers typed decision questions with probabilities, powered by the new DiffusionGemma model. See [Models & Pricing](https://docs.prem.io/models-and-pricing.md) for the price and the region.

To get started, read the [Decisions guide](https://docs.prem.io/guides/decisions.md) and the [Decisions API reference](https://docs.prem.io/api-reference/zdr-decisions.md), or try a ready-made example in the [dashboard](https://dashboard.prem.io).

### DeepSeek V4.1 Flash (Zero Data Retention)

DeepSeek V4.1 Flash is available in ZDR mode as `deepseek-v4.1-flash`. See [Models & Pricing](https://docs.prem.io/models-and-pricing.md) for the price and the region.


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