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The complete record — 223 artifacts, last updated 20 Aug 2026. Also available as JSON and RSS (CC BY 4.0).

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18 Aug 2026 OpenAI Lab publication

Introducing ChatGPT for Teens: Built for learning, backed by protections

OpenAI announced a distinct under-18 product tier that users are placed into automatically when the age-prediction system estimates they are under 18 or when they state an age between 13 and 17. The…

6 Aug 2026 OpenAI Lab publication

GPT-5.6 – August Updates

System-card addendum for the August 2026 releases of GPT-5.6 Sol and GPT-5.6 Luna. For the first time, OpenAI includes dedicated under-18 evaluations measuring model behavior against teen-specific sa…

9 Jul 2026 OpenAI Lab publication

GPT-5.6 System Card

General-availability system card for the GPT-5.6 family (Sol, the flagship; Terra, a lower-cost model; Luna, the fastest), published alongside the models' broad rollout. Retains Section 5.2's dynamic…

26 Jun 2026 OpenAI Lab publication superseded

GPT-5.6 Preview System Card

OpenAI's system card for the GPT-5.6 preview, a family of three models (Sol, the flagship; Terra, a lower-cost option; and Luna, the fastest/most cost-efficient), released in a limited preview ahead…

14 May 2026 OpenAI Lab publication

Helping ChatGPT better recognize context in sensitive conversations

OpenAI post describing safety updates that let ChatGPT recognize risk emerging over the course of a conversation rather than judging each message alone, focused on suicide, self-harm and harm-to-othe…

1 May 2026 Harvard Business School Preprint

Benchmarking the Safety of General Purpose Large Language Models for Suicide Risk Detection and Response

Harvard Business School working paper applying the open-source VERA-MH LLM-as-judge evaluation framework to ten general-purpose models from OpenAI, Anthropic, Google DeepMind, and xAI, scoring suicid…

23 Apr 2026 OpenAI Lab publication

GPT-5.5 System Card

OpenAI's system card for GPT-5.5, published on its Deployment Safety Hub, documenting safety evaluations for the model. It includes a dedicated section (5.2) on dynamic mental-health benchmarks with…

1 Nov 2025 OpenAI Framework

Protecting Teen ChatGPT Users: OpenAI's Teen Safety Blueprint

OpenAI's public commitments framework for protecting teenage ChatGPT users, covering age prediction, age-appropriate response policies, and parental controls, developed with input from policymakers (…

29 Oct 2025 OpenAI Lab publication

gpt-oss-safeguard: Open-Weight Safety Reasoning Models

OpenAI released gpt-oss-safeguard, a pair of open-weight safety-classification models (120B and 20B) under an Apache 2.0 license. The models take a safety policy supplied by the developer at inferenc…

27 Oct 2025 OpenAI Lab publication

Addendum to GPT-5 System Card: Sensitive Conversations

OpenAI's system-card addendum documenting the October 3, 2025 update to ChatGPT's default model (GPT-5 Instant) aimed at better recognizing and supporting users in mental and emotional distress. Deve…

27 Oct 2025 OpenAI Framework

OpenAI Model Spec (October 27, 2025 version)

The October 27, 2025 version of OpenAI's Model Spec, the company's public specification of how its models are intended to behave, released into the public domain (CC0). It defines a five-level instru…

2 May 2025 OpenAI Lab publication

Expanding on what we missed with sycophancy

OpenAI's detailed post-mortem of the April 25, 2025 GPT-4o update that made ChatGPT noticeably sycophantic — validating doubts, fueling anger, urging impulsive actions, and reinforcing negative emoti…

4 Apr 2025 OpenAI; MIT Media Lab Preprint

Investigating Affective Use and Emotional Well-being on ChatGPT

Two parallel studies of emotional engagement with ChatGPT: a large-scale automated analysis of over 3 million conversations and account activity using privacy-preserving classifiers, and a pre-regist…

1 Apr 2025 OpenAI Lab publication

EmoClassifiers (openai/emoclassifiers)

An open-source (MIT-licensed) release of the LLM-based automatic classifiers used in OpenAI and MIT Media Lab's affective-use study to detect affective cues in user-chatbot conversations at scale. It…

19 Apr 2024 OpenAI Lab publication

The Instruction Hierarchy: Training LLMs to Prioritize Privileged Instructions

Introduces an instruction-hierarchy training method that teaches LLMs to prioritize system/developer-level instructions over conflicting instructions embedded in untrusted user or third-party text. T…