When was this update announced?

The release date cited in this guide is 2026-09-29.

Is the update available to every user?

Availability can depend on product, account, region, and rollout stage. Check the official source linked in the guide.

What source supports this guide?

The guide links to the official announcement from OpenAI.

OpenAI model updates · 2 min read

GPT-6.1 Sol: What OpenAI’s September Update Changes

A sourced overview of GPT-6.1 Sol, where OpenAI says it fits, and how to evaluate it against a current baseline.

Release date: 2026-09-29. This update is based on the vendor’s announcement and was added to the Worksflow.ai guide on October 11, 2026.

OpenAI announced GPT-6.1 Sol on September 29, 2026 as an upgrade to GPT-6 Sol. The release focuses on agentic coding, computer use, and professional work, and describes API and product availability by channel rather than presenting it as a universal replacement for every GPT-6 model.

What the update means

Before changing a deployed model alias, verify the exact model identifier and availability in your account, then rerun task-specific evaluations. OpenAI’s reported comparisons are useful context, but your own latency, quality, and tool-call tests should determine whether to migrate.

What to verify before you update a workflow

Confirm the exact model or product identifier in the vendor’s live documentation.
Check whether the announcement describes a general release, preview, or restricted rollout.
Test the same representative tasks, tool calls, and failure cases used in your current workflow.
Record the vendor’s source and the date your team checked it.

Official sources

OpenAI’s official release note

Details and availability can change after publication. Recheck the source before acting on this guide.