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OpenAI put GPT-Live-1 in the API on Sep 10, 2026 - a full-duplex voice layer at $0.05/min billed per second. Covers architecture vs STT-LLM-TTS, backend pairing, free tier unsupported, and when to keep Vapi or LiveKit.
OpenAI's ChatGPT for Financial Services (Sep 10, 2026) adds hosted finance datasets, firm templates, and citations on ChatGPT Enterprise. See who inside IB/ER gets value, seat-mix rules, and how it forks from Claude for Financial Services and Copilot.
OpenAI Agents API public beta (Sep 10, 2026): sessions on /v1/agents/sessions, openai_hosted vs self_hosted, container rates, security defaults, and when to use ChatGPT Work or GPT-Live-1 instead.
DeepSeek V4.1 Flash shipped Sep 10, 2026 as a new 552B MoE / 1M family (call deepseek-flash). Flash rates apply. Official pages conflict: news260910 still announces Pro remaps to Flash Sep 14 04:00 UTC; live pricing says Pro continues. Re-verify that morning.
