OpenAI Responses API adds async tool calling and mid-turn steering for GPT-6 Astra

UpdateSep 3, 2026VerifiedAdded Sep 22, 2026

New long-running work controls let GPT-6 Astra keep working while tools run, accept extra instructions mid-response over WebSockets, and change reasoning effort mid-conversation while preserving the cached prompt.

LLMs Developer tools

Read OpenAI's release notes

https://developers.openai.com/api/docs/changelog#sep-3

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More OpenAI API releases

OpenAI APISep 3, 2026

OpenAI releases GPT-6 Astra for complex end-to-end work

GPT-6 Astra targets reasoning, coding, computer use, research and document creation. When migrating, note it lacks the none reasoning effort, custom temperature, top_p and logprobs.

UpdateAI agentsLLMsPricingSource

OpenAI APISep 2, 2026

OpenAI API separates slow_down 429s from server_is_overloaded 503s

Traffic ramping too quickly now returns 429 slow_down, while temporary model overload returns 503 server_is_overloaded. Honor Retry-After when present, otherwise use exponential backoff.

UpdateDeveloper toolsSource

OpenAI APISep 1, 2026

OpenAI API supports IPv6 connections to api.openai.com

Connections to api.openai.com can now use IPv6.

UpdateDeveloper toolsSource

OpenAI APISep 8, 2026

OpenAI Prompt Cache Diagnostics is generally available in the Responses API

For GPT-5.6 and later, developers can compare cache reuse against a previous response, see reasons for cache misses and follow guidance to improve cache hit rates.

GALLMsDeveloper toolsSource

OpenAI APISep 8, 2026

OpenAI releases GPT Image 2.5 Sunburst and GPT Image 2.5 Flare

Sunburst targets precise image editing and Flare fast everyday generation, both via the Image API and Responses image tool. They support new xhigh and max quality settings at GPT Image 2 token rates.

UpdateLLMsPricingDeveloper toolsSource

OpenAI APISep 8, 2026

OpenAI GPT-Rosalind is GA for approved life sciences research

gpt-rosalind-research is available through the trusted-access program at $5 input, $0.50 cached input and $25 output per 1M tokens. Billing begins October 5, 2026.

GAPricingSource

OpenAI APIAug 29, 2026

OpenAI API mTLS and X.509 workload identity federation are GA

Mutual TLS and X.509 workload identity federation can be configured in the Platform console, with access governed by organization roles and permissions, enabling keyless authentication.

GASecurityDeveloper toolsSource

OpenAI APISep 10, 2026

OpenAI project API keys support expiration dates

Project API keys can now be created with an expiration date, and admins can enforce a maximum key lifetime at the organization or project level.

UpdateDeveloper toolsSource

Also shipped on Sep 3, 2026

Google Cloud BigQuerySep 3, 2026

Conversational analytics now supports questions about market basket analysis

Conversational analytics now supports questions about market basket analysis . This feature is generally available (GA).

GASource

Snowflake Snowflake Horizon CatalogSep 3, 2026

External lineage (General availability)

External lineage is now generally available and is no longer in Preview .

GAGovernanceSource

Snowflake Snowflake Cortex AISep 3, 2026

Restricted Session Scope for agents (General availability)

With this release, Restricted Session Scope (RSS) is generally available. An RSS is a privilege ceiling that limits what an agent can do on behalf of a user. It intersects with RBAC and never grants privileges the user doesn't already have through their roles.

GAAI agentsSource

Databricks Databricks SQLSep 3, 2026

Share metric views with OpenSharing (Beta)

You can now share metric views with Databricks users in other metastores or accounts using OpenSharing. See Add metric views to a share and Read shared metric views .

BetaSource

Databricks AI/BI and GenieSep 3, 2026

Genie One enhancements

- Ask Genie button hidden when unsupported : In embedded dashboards, the Ask Genie button is now hidden when it isn't supported. See Ask Genie in embedded dashboards . Push notifications for scheduled tasks (Public Preview) : The Genie mobile app can now send push notifications for scheduled tasks to iOS devices. See Push notifications .

PreviewBISource

Databricks AI/BI and GenieSep 3, 2026

Web search in Genie One (Beta)

Genie One can now search the public web to answer questions that need current information, such as recent releases, third-party documentation, or news. Genie One decides when to search and cites the sources it uses, showing each as a link you can open. See Search the web .

BetaBISource