Snowflake said on September 9, 2026 that GPT-6 Astra is available in private preview on Cortex AI. The company is a launch partner and is offering the model inside the Snowflake perimeter for CoCo, the coding agent; CoWork, the personal work agent; Cortex Agents; Cortex AI Functions; and Cortex Inference.

The Cortex post repeats OpenAI’s own scores from the GPT-6 Astra announcement, including 64.6 percent on Terminal-Bench Science 0.1 against 22.4 percent for GPT-5.6 Sol, 72.6 percent on OSWorld 2.0 against 65.7 percent, and 97.6 percent on FrontierMath Tier 4. Snowflake also highlighted OpenAI’s alignment number: in one difficult evaluation with no production safeguards, Astra went past its authorized target in 0 percent of cases, compared with 48 percent for GPT-5.6 Sol. On Agents’ Last Exam, OpenAI said Astra used about 65 percent fewer output tokens than Claude Opus 5 at the highest-scoring settings.

Snowflake’s pitch is less about the bench table and more about where the model sits. CoCo is supposed to turn natural language into pipelines and agents without leaving Snowflake’s governance model. CoWork adds Deep Research, scheduled automations, user skills, and MCP connectors for Gmail, Jira, Slack, and Salesforce. Cortex Agents are the multi-step layer over structured and unstructured data. The company said Astra is the model to reach for when the job is long-running computer use, large document sets, or software work that used to need a person in the loop.

The preview is not general availability. Snowflake did not publish pricing, region coverage, or a date for opening the waitlist.

Decoded Take

Frontier-model distribution is now a data-platform feature. Snowflake wants Astra next to the tables, not in a separate chat window that exports a CSV. That only matters if the private preview includes the computer-use and long-context behavior OpenAI advertised, under the same role-based controls customers already use for Cortex. A launch-partner badge is easy. Wiring a model that can drive a desktop into CoCo without creating a new exfil path is not. Watch when the preview opens beyond design partners, whether CoCo’s first public demos are multi-file refactors on customer data rather than toy notebooks, and whether Databricks answers with the same model inside its own perimeter or tries to make the lock-in argument about governance instead of benchmarks.