Software engineering at Google & CS education with Titus Winters
Titus Winters shares lessons from engineering at Google’s scale and explores how AI is reshaping developer productivity and computer science education.
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The Pulse: Anthropic kills the coding interview
AI is rendering the Leetcode-style interview pointless and now Anthropic has deleted it from its interview loop.
Claude 529 Overloaded: What It Means and How to Fix It
A 529 overloaded_error from Claude means Anthropic's API is out of capacity for the model you asked for, not that your key or plan is wrong.
Hit Your Claude Code Usage Limit? How to Keep Coding
When Claude Code hits your plan's five-hour or weekly limit, you can keep working by pointing it at an OpenRouter API key.
How Much Does Claude Code Cost? Real Session Costs by Model
Claude Code is free to install, and what you pay for is the model it calls. We publish the median cost of real Claude Code sessions on OpenRouter by model and session length.
Claude Opus vs Sonnet vs Haiku: Which Should You Use?
Use Claude Sonnet 5.5 as your default, Haiku 5.5 for high-volume and sub-agent work, and Opus 5.5 for long tasks where a mistake is costly.
How to Build Your Own Always-On AI Agent
An always-on AI agent wakes up on a schedule, checks something with tools, and reports or acts without you asking.
Build an AI Code Reviewer with OpenRouter
Code reviewers that only read a Git diff have to guess whether a change breaks anything, and their fixes come back as prose you apply by hand.
Rapidly scaling online storage to serve over 1 billion ChatGPT users (Part II)
Learn how OpenAI scaled Habitat with reliable multi-tenancy, global caching, and Azure Cosmos DB to deliver 12× faster reads for ChatGPT.
ChatGPT’s expanding world of work
Explore OpenAI Signals data on 165 work activities across nearly 100 countries, revealing how people use ChatGPT for work and how usage changes over time.
How Ultrafast cut incident investigation from hours to minutes at OpenAI
See how OpenAI engineers use Codex Ultrafast to investigate incidents in minutes. Explore faster security analysis, code refactoring, and daily workflows.
Introducing GPT-6.1 Terra
Delivering fast and capable computer use at scale
GPT-6.1 Sol helps CodeRabbit strengthen security across complex codebases
CodeRabbit uses GPT-6.1 Sol to investigate security risks across complex codebases. Its security agent helps developers review findings and proposed fixes.
Greptile takes bug detection beyond code review with GPT-6 Astra
How Greptile uses GPT-6 Astra to test user workflows, Daybreak to strengthen security, and Codex to reduce rework.
Anima helps clinics cut call waits by 75% with GPT-6 and GPT-Live
Anima expands what care teams can do with OpenAI models, giving them more capacity to respond to patients.
OpenAI expands partnership with Oracle to bring its apps to ChatGPT
OpenAI and Oracle are expanding their partnership to bring business applications and AI agents into ChatGPT and power new Oracle offerings.
Retell uses OpenAI models to help power 100M monthly calls
GPT-6 Astra tops Retell’s voice agent benchmark, while Codex helps it reach a $1.6M annual revenue run rate per employee.
Legora is building the agentic operating system for legal work
See how Legora uses OpenAI models, ChatGPT, and Codex to accelerate legal workflows, expand contract analysis, and free lawyers to focus on higher-value work.
OpenAI and ServiceNow expand partnership across enterprise workflows
OpenAI and ServiceNow expand their partnership to bring OpenAI models and agents into ServiceNow and ServiceNow workflows into ChatGPT and Codex.
How we detect frontier model misalignment
OpenAI uses layered monitoring to detect frontier model misalignment and unauthorized agent behavior so responders can intervene before incidents escalate.
Credit Saison achieves 954% ROI in a ChatGPT Enterprise pilot
Credit Saison’s ChatGPT Enterprise pilot delivered 954% ROI. See how leaders and employees helped turn the results into companywide adoption.
Community safety report and new protections for teens
OpenAI is strengthening violence prevention in ChatGPT with expanded safeguards, earlier interventions, and a new commitment to public safety reporting.
Qodo builds context into AI code review with Codex
Qodo brings company knowledge and coding standards into Codex, helping developers catch P0 issues across repositories before opening a pull request.
Heimstaden is changing residential real estate management with AI
Discover how Heimstaden uses OpenAI’s ChatGPT Enterprise and Codex to transform property management, cut costs, and empower employees across Europe.
Accelerating engineering for the physical world
Discover how ChatGPT and Codex are helping engineers accelerate CAD, PCB design, simulation, and other workflows across the physical world.
How Cisco defends at machine speed with OpenAI
Cisco combines network intelligence with OpenAI models to strengthen enterprise security. Learn how it is building more adaptive defenses.
Evernote turns AI-driven discovery into paid subscriptions
Evernote used ChatGPT Ads to introduce its note-taking app to people working with AI. The team tracked how often free trials led to paid subscriptions.
OpenAI to acquire Pierre Computer Company, Inc.
OpenAI will acquire Pierre Computer Company, expanding Codex’s tools for building, understanding, and reviewing code.
Daybreak Red is now available in AWS GovCloud (US-East)
Daybreak Red brings GPT-5.6 Cyber to approved customers in AWS GovCloud (US-East) through Amazon Bedrock for authorized cybersecurity work.
DevRev delivers autonomous self-service with GPT-6.1 Sol
DevRev uses GPT-6.1 Sol to power Computer and Operator, balancing reasoning, speed, and cost for enterprise service.