OpenAI-compatible `/v1/responses` endpoint (stateful chats, remote mcp, custom tools)
WebSocket Mode | OpenAI API
Learn how to use Responses API WebSocket mode with response.create and previous_response_id.
Hatice Ozen on Twitter / X
PSA: @OpenAI is putting the Open back in OpenAI and @GroqInc has Day 0 support. 🤗GPT-OSS 20B and 120B, hybrid-reasoning models with built-in browser search and code execution are now live for instant inference.P.S. We've also launched OpenAI Responses API compatibility. pic.twitter.com/CK7StvMSpr— Hatice Ozen (@ozenhati) August 5, 2025
Latency optimization | OpenAI API
Improve latency across a wide variety of LLM-related use cases.
Secure MCP Tunnel | OpenAI API
Connect private or on-prem MCP servers to supported OpenAI products with an outbound-only MCP tunnel, without exposing them to the public internet.
OpenAI Developers on Twitter / X
Today we’re announcing Open Responses: an open-source spec for building multi-provider, interoperable LLM interfaces built on top of the original OpenAI Responses API.✅ Multi-provider by default✅ Useful for real-world workflows✅ Extensible without fragmentationBuild… pic.twitter.com/SJiBFx1BOF— OpenAI Developers (@OpenAIDevs) January 15, 2026
OpenAI Harmony Response Format
The gpt-oss models were trained on the harmony response format for defining conversation structures, generating reasoning output and structu
Function calling | OpenAI API
Learn how function calling enables large language models to connect to external data and systems.
OpenAI Model Spec
The Model Spec specifies desired behavior for the models underlying OpenAI's products (including our APIs).
Streaming responses with tool calling· Ollama Blog
Ollama now supports streaming responses with tool calling. This enables all chat applications to stream content and also call tools in real time.
OpenAI may soon let you 'sign in with ChatGPT' for other apps | TechCrunch
OpenAI may soon let users sign in to third party services with their ChatGPT accounts, and is currently trying to gauge developer interest.
OpenAI.fm
An interactive demo for developers to try the latest text-to-speech model in the OpenAI API
OpenAI launches a sub-$5 ChatGPT plan in India | TechCrunch
This plan will offer 10x more messages and image generation than the free tier, among other benefits.
OpenAI on Twitter / X
Our open models are here.Both of them.https://t.co/9tFxefOXcg— OpenAI (@OpenAI) August 5, 2025
What makes a great ChatGPT app | OpenAI Developers
How to build capabilities that make conversations better.
Deprecations | OpenAI API
Find information about OpenAI API deprecations and recommended replacements.
