OpenAI Blog
Feb 13
Beyond rate limits: scaling access to Codex and Sora
How OpenAI built a real-time access system combining rate limits, usage tracking, and credits to power continuous access to Sora and Codex.
Retell uses OpenAI models to help power 100M monthly calls
Retell leverages OpenAI models to support 100 million monthly calls, with GPT‑6 Astra achieving top performance on its voice agent benchmark. Codex contributes to the company’s financial success, helping it reach a $1.6 million annual revenue run rate per employee.
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OpenAI Blog
Sep 23
Ringg’s AI agents resolve up to 65% of customer calls with OpenAI
Ringg’s AI agents, powered by GPT‑5.6, can resolve up to 65% of customer calls. They operate across voice, chat, WhatsApp, and web in multiple languages. The solution delivers these capabilities at a cost 90% lower than GPT‑4.1.
OpenAI Blog
Jun 26, 2025
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.
OpenAI Blog
Jan 29
Inside OpenAI’s in-house data agent
How OpenAI built an in-house AI data agent that uses GPT-5, Codex, and memory to reason over massive datasets and deliver reliable insights in minutes.
OpenAI Blog
May 4
How OpenAI delivers low-latency voice AI at scale
How OpenAI rebuilt its WebRTC stack to power real-time Voice AI with low latency, global scale, and seamless conversational turn-taking.
OpenAI Blog
Jul 1, 2025
No-code personal agents, powered by GPT-4.1 and Realtime API
Learn how Genspark built a $36M ARR AI product in 45 days—with no-code agents powered by GPT-4. 1 and OpenAI Realtime API.
OpenAI Blog
Apr 20
OpenAI helps Hyatt advance AI among colleagues
Hyatt deploys ChatGPT Enterprise across its global workforce, using GPT-5. 4 and Codex to improve productivity, operations, and guest experiences.
Simon Willison
Sep 3
GPT‑6 Astra
GPT‑6 Astra is a new OpenAI model rolling out today to a limited set of organizations and soon to all ChatGPT Plus, Pro, Business, Enterprise users, and via the OpenAI API and AWS. It is priced at $10/million input and $50/million output, matching Claude Fable 5/5.1, and outperforms Fable on most OpenAI self‑reported benchmarks, achieving 99.9% on the ARC‑AGI 3 benchmark with a custom Provider Adapter harness. Astra excels in security tasks—scoring 100% on ExploitBench, 42.4% on ExploitGym, and 99.2% on SRE‑Bench—and handles long context well, hitting 100% on OpenAI’s eight‑needle benchmark at 256K–512K tokens and 96.3% at 512K–1M tokens, though it remains behind Fable on the Intelligence Index and Meta’s Muse Spark 1.3.
OpenAI Blog
Jan 14
OpenAI partners with Cerebras
OpenAI partners with Cerebras to add 750MW of high-speed AI compute, reducing inference latency and making ChatGPT faster for real-time AI workloads.
OpenAI Blog
Apr 21
Scaling Codex to enterprises worldwide
OpenAI launches Codex Labs, partners with with Accenture, PwC, Infosys, and others to help enterprises deploy and scale Codex across the software development lifecycle, and hits 4M Codex WAU.
OpenAI Blog
Jul 16
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, and bring agentic workflows to teams across the company.
OpenAI Blog
Jul 24, 2025
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 than before.