Demystifying evals for AI agents
Demystifying evals for AI agents...
80 articles
Harness
Code execution with MCP: Building more efficient agents
Code execution with MCP: Building more efficient agents...
Agent Engineering
How To Evaluate Voice Agents Execution Outcomes And Experience
How To Evaluate Voice Agents Execution Outcomes And Experience...
Large Models
How enabling two settings tripled our scores on the ARC-AGI-3 benchmark
How two API settings improved GPT-5.6 performance on ARC-AGI-3, boosting scores and efficiency by retaining reasoning an...
Large Models
How GPT-5.6 fuses frontier intelligence with frontier efficiency
GPT-5.6 improves AI efficiency across models, inference, and agentic workflows, helping deliver more useful intelligence...
Large Models
Introducing OpenAI Presence
Introducing OpenAI Presence, a proven enterprise AI agent platform that helps organizations deploy trusted voice and cha...
Large Models
How Cars24 scales conversations and builds faster with OpenAI
Cars24 uses OpenAI-powered voice and chat agents to handle 1M+ monthly conversation minutes, recover 12% of lost leads, ...
Large Models
How Deutsche Telekom is rewiring telecommunications with AI
How Deutsche Telekom is becoming an AI-native telco with OpenAI-transforming customer service, employee workflows, netwo...
Large Models
Improving health intelligence in ChatGPT
Learn how GPT-5.5 Instant improves ChatGPT’s health and wellness responses with stronger reasoning, better context, clea...
Large Models
New OpenAI Academy courses for the next era of work
OpenAI introduces three Academy courses that help people build practical AI skills, create repeatable workflows, and app...
Large Models
OpenAI to acquire Ona
OpenAI plans to acquire Ona to expand Codex with secure, persistent cloud environments, enabling long-running AI agents ...
Large Models
How Endava is redesigning software delivery around AI agents
Learn how Endava is using AI agents, ChatGPT Enterprise, and Codex to accelerate software delivery, automate workflows, ...
Large Models
OpenAI frontier models and Codex are now available on AWS
OpenAI frontier models and Codex are now generally available on AWS, giving enterprises a new path to build with OpenAI ...
Large Models
Building self-improving tax agents with Codex
See how OpenAI, Thrive, and Crete built a self-improving tax agent with Codex, automating filings, improving accuracy, a...
Large Models
Warp’s big bet on building open source with GPT-5.5
Warp uses GPT-5.5 and OpenAI models to coordinate coding agents across local, cloud, and open-source development workflo...
Large Models
OpenAI and Dell partner to bring Codex to hybrid and on-premise enterprise environments
OpenAI and Dell partner to bring Codex to hybrid and on-premise environments, helping enterprises deploy AI coding agent...
Large Models
Databricks brings GPT-5.5 to enterprise agent workflows
Databricks uses GPT-5.5 for enterprise agent workflows after the model set a new state of the art on the OfficeQA Pro be...
Large Models
A new personal finance experience in ChatGPT
Preview a new personal finance experience in ChatGPT for Pro users in the U.S. Securely connect your financial accounts ...
Large Models
Parloa builds service agents customers want to talk to
Parloa leverages OpenAI models to power scalable, voice-driven AI customer service agents, enabling enterprises to desig...
Large Models
How frontier firms are pulling ahead
OpenAI’s B2B Signals research shows how frontier enterprises deepen AI adoption, scale Codex-powered agentic workflows, ...
Large Models
OpenAI and PwC collaborate to reimagine the office of the CFO
OpenAI and PwC are partnering to help enterprises use AI agents to automate finance workflows, improve forecasting, stre...
Open Ecosystem
Introducing NVIDIA Nemotron 3 Nano Omni: Long-Context Multimodal Intelligence for Documents, Audio and Video Agents
Introducing NVIDIA Nemotron 3 Nano Omni: Long-Context Multimodal Intelligence for Documents, Audio and Video Agents...
Large Models
An open-source spec for orchestration: Symphony
Learn how Symphony, an open-source spec for Codex orchestration, turns issue trackers into always-on agent systems—boost...
Large Models
Introducing workspace agents in ChatGPT
Workspace agents in ChatGPT are Codex-powered agents that automate complex workflows, run in the cloud, and help teams s...
Large Models
Workspace agents
Learn how to build and use workspace agents in ChatGPT to automate repeatable workflows, connect tools, and streamline t...
Large Models
Codex for (almost) everything
The updated Codex app for macOS and Windows adds computer use, in-app browsing, image generation, memory, and plugins to...
Large Models
Introducing GPT-Rosalind for life sciences research
OpenAI introduces GPT-Rosalind, a frontier reasoning model built to accelerate drug discovery, genomics analysis, protei...
Large Models
The next evolution of the Agents SDK
OpenAI updates the Agents SDK with native sandbox execution and a model-native harness, helping developers build secure,...
Large Models
Enterprises power agentic workflows in Cloudflare Agent Cloud with OpenAI
Cloudflare brings OpenAI’s GPT-5.4 and Codex to Agent Cloud, enabling enterprises to build, deploy, and scale AI agents ...
Large Models
CyberAgent moves faster with ChatGPT Enterprise and Codex
CyberAgent uses ChatGPT Enterprise and Codex to securely scale AI adoption, improve quality, and accelerate decisions ac...
Large Models
Gradient Labs gives every bank customer an AI account manager
Gradient Labs uses GPT-4.1 and GPT-5.4 mini and nano to power AI agents that automate banking support workflows with low...
Open Ecosystem
A New Framework for Evaluating Voice Agents (EVA)
A New Framework for Evaluating Voice Agents (EVA)...
Large Models
Introducing GPT-5.4 mini and nano
GPT-5.4 mini and nano are smaller, faster versions of GPT-5.4 optimized for coding, tool use, multimodal reasoning, and ...
Large Models
Designing AI agents to resist prompt injection
How ChatGPT defends against prompt injection and social engineering by constraining risky actions and protecting sensiti...
Large Models
Codex Security: now in research preview
Codex Security is an AI application security agent that analyzes project context to detect, validate, and patch complex ...
Large Models
How Balyasny Asset Management built an AI research engine
By combining rigorous model evaluation, full-platform use of OpenAI, and agent workflows, Balyasny is reinventing invest...
Large Models
Introducing GPT-5.4
Introducing GPT-5.4, OpenAI’s most most capable and efficient frontier model for professional work, with state-of-the-ar...
Large Models
Introducing the Stateful Runtime Environment for Agents in Amazon Bedrock
Stateful Runtime for Agents in Amazon Bedrock brings persistent orchestration, memory, and secure execution to multi-ste...
Large Models
Pacific Northwest National Laboratory and OpenAI partner to accelerate federal permitting
OpenAI and Pacific Northwest National Laboratory introduce DraftNEPABench, a new benchmark evaluating how AI coding agen...
Large Models
Introducing EVMbench
OpenAI and Paradigm introduce EVMbench, a benchmark evaluating AI agents’ ability to detect, patch, and exploit high-sev...
Large Models
Introducing GPT-5.3-Codex-Spark
Introducing GPT-5.3-Codex-Spark—our first real-time coding model. 15x faster generation, 128k context, now in research p...
Large Models
Harness engineering: leveraging Codex in an agent-first world
By Ryan Lopopolo, Member of the Technical Staff...
Large Models
Introducing GPT-5.3-Codex
GPT-5.3-Codex is a Codex-native agent that pairs frontier coding performance with general reasoning to support long-hori...
Large Models
GPT-5.3-Codex System Card
GPT‑5.3-Codex is the most capable agentic coding model to date, combining the frontier coding performance of GPT‑5.2-Cod...
Large Models
Introducing the Codex app
Introducing the Codex app for macOS—a command center for AI coding and software development with multiple agents, parall...
Large Models
Retiring GPT-4o, GPT-4.1, GPT-4.1 mini, and OpenAI o4-mini in ChatGPT
On February 13, 2026, alongside the previously announced retirement of GPT‑5 (Instant, Thinking, and Pro), we will reti...
Large Models
Unrolling the Codex agent loop
A technical deep dive into the Codex agent loop, explaining how Codex CLI orchestrates models, tools, prompts, and perfo...
Large Models
How Higgsfield turns simple ideas into cinematic social videos
Discover how Higgsfield gives creators cinematic, social-first video output from simple inputs using OpenAI GPT-4.1, GPT...
Large Models
ServiceNow powers actionable enterprise AI with OpenAI
ServiceNow expands access to OpenAI frontier models to power AI-driven enterprise workflows, summarization, search, and ...
Large Models
Netomi’s lessons for scaling agentic systems into the enterprise
How Netomi scales enterprise AI agents using GPT-4.1 and GPT-5.2—combining concurrency, governance, and multi-step reaso...
Large Models
How Tolan builds voice-first AI with GPT-5.1
Tolan built a voice-first AI companion with GPT-5.1, combining low-latency responses, real-time context reconstruction, ...
Large Models
Continuously hardening ChatGPT Atlas against prompt injection
OpenAI is strengthening ChatGPT Atlas against prompt injection attacks using automated red teaming trained with reinforc...
Large Models
Evaluating chain-of-thought monitorability
OpenAI introduces a new framework and evaluation suite for chain-of-thought monitorability, covering 13 evaluations acro...
Large Models
How We Used Codex to Ship Sora for Android in 28 Days
OpenAI shipped Sora for Android in 28 days using Codex. AI-assisted planning, translation, and parallel coding workflows...
Large Models
Introducing GPT-5.2
GPT-5.2 is our most advanced frontier model for everyday professional work, with state-of-the-art reasoning, long-contex...
Large Models
Building more with GPT-5.1-Codex-Max
Introducing GPT-5.1-Codex-Max, a faster, more intelligent agentic coding model for Codex. The model is designed for long...
Large Models
GPT-5.1-Codex-Max System Card
This system card outlines the comprehensive safety measures implemented for GPT‑5.1-CodexMax. It details both model-leve...
Large Models
gpt-oss-safeguard technical report
gpt-oss-safeguard-120b and gpt-oss-safeguard-20b are two open-weight reasoning models post-trained from the gpt-oss mode...
Large Models
SafetyKit scales risk agents with OpenAI’s most capable models
Discover how SafetyKit leverages OpenAI GPT-5 to enhance content moderation, enforce compliance, and outpace legacy safe...
Large Models
Scaling accounting capacity with OpenAI
Built with OpenAI o3, o3-Pro, GPT-4.1, and GPT-5, Basis’ AI agents help accounting firms save up to 30% of their time an...
Large Models
Introducing gpt-oss
We’re releasing gpt-oss-120b and gpt-oss-20b—two state-of-the-art open-weight language models that deliver strong real-w...
Large Models
Resolving digital threats 100x faster with OpenAI
Discover how Outtake uses GPT-4.1 and OpenAI o3 to power AI agents that detect and resolve digital threats 100x faster t...
Large Models
Model ML is helping financial firms rebuild with AI from the ground up
As part of our Executive Function series, Model ML CEO Chaz Englander discusses how AI-native infrastructure and autonom...
Large Models
Customizable, no-code voice agent automation with GPT-4o
Retell AI is transforming the call center with AI voice automation powered by GPT-4o and GPT-4.1. Its no-code platform e...
Large Models
Driving scalable growth with OpenAI o3, GPT-4.1, and CUA
Unify, an AI-powered GTM platform, uses OpenAI’s o3, GPT-4.1, and CUA to automate prospecting, research, and outreach. W...
Large Models
Addendum to OpenAI o3 and o4-mini system card: OpenAI o3 Operator
We are replacing the existing GPT-4o-based model for Operator with a version based on OpenAI o3. The API version will re...
Large Models
Shipping code faster with o3, o4-mini, and GPT-4.1
CodeRabbit uses OpenAI models to revolutionize code reviews—boosting accuracy, accelerating PR merges, and helping devel...
Large Models
Addendum to o3 and o4-mini system card: Codex
Codex is a cloud-based coding agent. Codex is powered by codex-1, a version of OpenAI o3 optimized for software engineer...
Large Models
New in ChatGPT for Business: April 2025
Watch hands-on demos of the lastest in ChatGPT for Business: o3, image generation, enhanced memory, and internal knowled...
Large Models
OpenAI o3 and o4-mini System Card
OpenAI o3 and OpenAI o4-mini combine state-of-the-art reasoning with full tool capabilities—web browsing, Python, image ...
Large Models
PaperBench: Evaluating AI’s Ability to Replicate AI Research
We introduce PaperBench, a benchmark evaluating the ability of AI agents to replicate state-of-the-art AI research....
Large Models
OpenAI o3-mini System Card
This report outlines the safety work carried out for the OpenAI o3-mini model, including safety evaluations, external re...
Large Models
OpenAI o1 System Card
This report outlines the safety work carried out prior to releasing OpenAI o1 and o1-mini, including external red teamin...
Large Models
MLE-bench: Evaluating Machine Learning Agents on Machine Learning Engineering
We introduce MLE-bench, a benchmark for measuring how well AI agents perform at machine learning engineering....
Large Models
Using GPT-4o reasoning to transform cancer care
Color Health is working with OpenAI to pioneer a new way of accelerating cancer patients’ access to treatment. Their new...
Large Models
Video generation models as world simulators
We explore large-scale training of generative models on video data. Specifically, we train text-conditional diffusion mo...
Large Models
Building an early warning system for LLM-aided biological threat creation
We’re developing a blueprint for evaluating the risk that a large language model (LLM) could aid someone in creating a b...
Large Models
GPT-4
We’ve created GPT-4, the latest milestone in OpenAI’s effort in scaling up deep learning. GPT-4 is a large multimodal mo...
Large Models
Learning to play Minecraft with Video PreTraining
We trained a neural network to play Minecraft by Video PreTraining (VPT) on a massive unlabeled video dataset of human M...