Snowflake Adds OpenAI's GPT-6 Sol and Luna to Cortex AI in Public Preview

Where the models are available

According to Snowflake, GPT-6 Sol and GPT-6 Luna are available now through Cortex Inference. Support is coming soon to Cortex AI Functions, Snowflake CoCo, Snowflake CoWork and Cortex Agents. The company says all calls run within Snowflake's security and governance perimeter.

Snowflake describes the two models as upgrades over their GPT-5.6 predecessors. Both improve, it says, across professional work, factuality, coding, computer use and alignment. The company positions Sol as the stronger option for complex professional and technical work, while Luna is designed for responsive execution at scale. The performance comparisons in the post are credited to OpenAI and dated Sep 22, 2026.

Choosing between Sol and Luna

Snowflake frames the pair as two new model choices for development, analysis and agentic work inside its governed environment. Its guidance is to use Sol when a task needs deeper reasoning across several steps, and Luna when a workload needs responsive execution at scale.

Several planned uses are tied to products that are not yet supported:

• Snowflake CoCo (coming soon): Snowflake's AI coding agent, which the company says understands enterprise data, governance policies and workflows.
• Snowflake CoWork (coming soon): a personal agent that, according to Snowflake, understands your data from day one and delivers finished reports and briefs within the governance perimeter.
• Cortex AI Functions (coming soon): a way to build scalable AI pipelines over multimodal enterprise data using SQL.

Calling the models from SQL and code

Once GPT-6 support reaches Cortex AI Functions, analysts will be able to apply natural language instructions directly in SQL with AI_COMPLETE. Snowflake shows a planned example using the model name 'openai-gpt-6-luna' to review a financial filing and summarize revenue trends, margin changes and notable risk factors. The company stresses that this example is not available yet.

Developers can already use Cortex Inference from their applications through their Snowflake account endpoint. Snowflake says they can use the OpenAI SDK with its OpenAI-compatible endpoint. The sample in the post authenticates with a Snowflake PAT, points the client at the account's Snowflake URL, and calls the model 'openai-gpt-6-sol'. The example sends a system prompt, a text question about an 18% sales drop in Q2, and a base64-encoded PNG chart for analysis.

What it means for Snowflake users

For teams already building on Snowflake, the release adds two OpenAI models to Cortex Inference without moving data or calls outside the platform's governance controls, according to the company. Because the endpoint is OpenAI-compatible, existing code written with the OpenAI SDK should need fewer changes, based on the approach Snowflake describes.

The wider rollout depends on upcoming support in Cortex AI Functions, CoCo, CoWork and Cortex Agents. Snowflake gives no dates for these, and its post carries a forward-looking statement noting that future offerings are not commitments to deliver.