# Snowflake opens public preview of Cortex Training for open-weight models

_Published Tuesday, November 3, 2026 at 10:56 AM EST · AI, Infrastructure · Latest · Tier 2 — Notable_

![Snowflake opens public preview of Cortex Training for open-weight models — Primary](https://www.snowflake.com/content/dam/snowflake-site/blog/2026/11/expedition-cortex-training.png)

Snowflake announced the public preview of Cortex Training, a service for customizing and deploying open-weight language models without managing GPU clusters. Teams can use supervised fine-tuning, which teaches from examples, or reinforcement learning, which trains from feedback on outcomes, through existing frameworks or lower-level APIs.

Snowflake manages GPU provisioning, distributed execution and checkpoints while keeping training data, model weights and optimizer state in its managed environment. The service supports full-parameter and LoRA training and deployment through OpenAI-compatible inference endpoints. Usage is billed by GPU time.

## Sources

- [https://publish-p57963-e462109.adobeaemcloud.com/feed/?lang=en](https://www.snowflake.com/content/snowflake-site/global/en/blog/cortex-training-fine-tune-open-weight-llms)

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Canonical: https://techandbusiness.org/newswire/WiuFwbTaW4xan0mQt24Aa5
Published: 2026-11-03T15:56:53.013Z
Story chronology: 2026-11-03T00:00:00.000Z
Retrieved: 2026-11-03T18:31:40.984Z
Publisher: Tech & Business (techandbusiness.org)