
OpenAI Agents SDK in Late 2026: What Is New in Python and TypeScript
OpenAI Agents SDK as of Python 0.24 and JS 0.21: sandbox agents, three guardrail layers, compaction sessions, MCP v2 and new defaults, with type-checked code.
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OpenAI Agents SDK as of Python 0.24 and JS 0.21: sandbox agents, three guardrail layers, compaction sessions, MCP v2 and new defaults, with type-checked code.

OpenAI prompt-to-voice turns a text description into a saved GPT-Live voice. Creating it is free, the limit is 100 per org, and it only works in GPT-Live.

OpenCode disclosed a breach of its Console that may have exposed provider keys. Who is affected, what to rotate today, and why hosted key gateways are the real risk.

Pydantic AI V2 explained through v2.64.0: the new ModelFallback capability, typed output, Conversation storage, caching, graphs, evals, MCP Apps and Logfire, with checked code.

Stream tokens, tool calls and UI parts from agents: AI SDK 7 UI message streams, resumable streams, AG-UI 1.0 events, and Mastra and LangGraph.

An agent loop calls the model, runs tools, feeds results back and repeats until a stop rule fires. Defaults vary: 20 steps, 25 super-steps, 5, 10 or no cap.

How tool calling works on the wire: JSON schema tools, parallel calls, tool_choice, strict mode and streaming deltas in Claude Messages vs OpenAI Responses.

Vercel AI SDK is at 7.0.154: an interrupted finish reason, steering and onStepError, plus 10 harness adapters, tool search, streamRetries and WebSocket chat.

OpenAI shuts down whisper-1 and the gpt-4o transcribe models on Feb 26, 2027. Move files to gpt-transcribe ($0.0045/min) and live audio to gpt-live-transcribe.

Codex says gpt-5.5 is not supported with a ChatGPT account because OpenAI retired it from ChatGPT sign-in on October 14. The fix and what still works.

Meta released Muse Spark Open weights on October 15, 2026: 816B total, 42B active, 1M context. Run recipes, hardware floor, license catch, and where it trails.

Tencent WorkBuddy is a desktop AI agent for office work running Hy3, DeepSeek and more via TokenHub. What it costs, the free tokens and when to skip it.
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