AgentsThe Agents API packages sessions, tools, and subagentsOpenAI introduced a public-beta Agents API that runs the Codex agent harness as a managed service. It supports durable sessions, automatic context compaction, tool use, subagents, and OpenAI-hosted or external execution environments. The page establishes product availability; customer performance figures are testimonials rather than independent benchmarks.OpenAI · Sep 10, 2026
Voice AIGPT-Live-1 can listen while it speaksOpenAI launched GPT-Live-1 as a full-duplex voice API that can listen and speak simultaneously, handle interruptions, and delegate deeper reasoning or tool calls to a backend model. It adds telephony and configurable voices. Performance numbers and customer outcomes on the page are OpenAI and partner-reported, not independent comparisons.OpenAI · Sep 10, 2026
PhysicsAn extraordinary math claim needs independent reviewOpenAI says an internal model and a large multi-agent system produced an analytical and Lean-formalized proof that smooth Navier–Stokes flow can develop a finite-time singularity. The company calls it a resolution but does not seek the prize. The mathematical claim is extraordinary and should remain labeled unvalidated until independent experts verify it.OpenAI · Sep 8, 2026