GPT-5.6 Sol is a next-generation language model from OpenAI's gpt-sol family that has been deployed in beta on the Snowflake Cortex platform, offering a large context window for handling lengthy documents and multimodal inputs. It is designed to support enterprise workflows that require reasoning across text, images, and PDFs, while producing structured text outputs suitable for integration into downstream pipelines. The model exposes tool-calling and structured-output capabilities, making it well suited for orchestrated agent tasks and automated data workflows within a managed cloud environment.

Independent third-party evaluation work has already been carried out on GPT-5.6 Sol ahead of its deployment. METR conducted a predeployment assessment under a standard NDA, with OpenAI's communications and legal team reviewing and approving the published summary. As part of that evaluation, OpenAI provided METR with API access to both the final checkpoint and a railfree variant, a version exposing raw chain-of-thought, a Codex harness setup guide for third-party assessors, and updated responses to the pilot Frontier Risk Report questionnaire. This level of pre-release scrutiny suggests the model has been vetted for agent-style software tasks and complex reasoning workloads before becoming generally available to Cortex customers.