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

GAAug 29, 2026VerifiedAdded Sep 22, 2026

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.

Security Developer tools

Read OpenAI's release notes

https://developers.openai.com/api/docs/changelog#aug-29

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More OpenAI API releases

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 APIAug 26, 2026

OpenAI deprecates whisper-1 and gpt-4o transcribe models, shutdown February 26, 2027

whisper-1, gpt-4o-transcribe, gpt-4o-mini-transcribe and gpt-4o-transcribe-diarize shut down February 26, 2027; migrate to gpt-live-transcribe or gpt-transcribe. The Assistants API shut down August 26, 2026.

DeprecationLLMsDeveloper toolsSource

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 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 3, 2026

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

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.

UpdateLLMsDeveloper toolsSource

OpenAI APIAug 24, 2026

Advancing price-performance for developers with GPT‑5.6 in Kiro

GPT‑5.6 is now available in Kiro, helping developers plan, build, review, and test software with better price-performance.

UpdatePricingCoding agentsPerformanceSource

OpenAI APIAug 21, 2026

OpenAI API adds per-request regional processing via prefixed domains

Projects with Global geography can select regional processing for an individual request by calling a prefixed domain. Existing eligibility, retention, endpoint and model requirements still apply.

UpdateDeveloper toolsSource

OpenAI APIAug 21, 2026

OpenAI cuts GPT-5.6 Sol pricing to $4 input and $20 output per MTok

GPT-5.6 Sol input pricing drops 20% and output pricing 33%. The promotional price runs at least through November 21, 2026.

PricingLLMsPricingSource

Also shipped on Aug 29, 2026

Databricks Databricks Data Intelligence PlatformAug 29, 2026

ai_transcribe function (Beta)

The ai_transcribe() SQL function transcribes an audio file into text. It returns the transcript as time-stamped segments, and labels each segment with a speaker when speaker diarization is enabled for your workspace. The output is a VARIANT value, so you can chain it into other AI Functions. This feature is in Beta . See ai_transcribe function .

BetaSQLSource

Databricks Databricks Data Intelligence PlatformAug 29, 2026

Zhipu AI GLM 5.3 now available as a Databricks-hosted model

Model Serving now supports GLM 5.3 as a Databricks-hosted model in supported US and Americas regions. This text-only mixture of experts (MoE) model supports a context window of up to 1,048,576 tokens, up to 65,536 output tokens, function calling, structured output, coding, agentic tool use, and always-on reasoning.

UpdateAI agentsGovernanceRegionsSource

Databricks Databricks Data Intelligence PlatformAug 29, 2026

Restrict service principal OAuth secrets to specific API scopes

You can now restrict a service principal's OAuth secret to specific API scopes, such as sql or jobs , instead of all APIs. A token minted from a scoped secret can't exceed those scopes, which limits the impact of a leaked secret. See Authorize service principal access to Databricks with OAuth .

UpdateSQLSecurityDeveloper toolsSource