GPT-6 Astra refuses Chat Completions tool calls, drops temperature and top_p, adds two new error codes operators must handle, and runs async misalignment monitoring that changes the latency contract for Responses API users.
DeepSeek released V4-Flash-0731 as public beta today with agent benchmarks exceeding V4-Pro-Preview. Critical: Responses API is Flash-only until early August. Flash is the only path for Codex-native and Responses API workflows right now.
OpenAI's engineering post on ARC-AGI-3 reveals that retained reasoning and compaction in the Responses API tripled GPT-5.6 Sol's score and cut output tokens 6x. The lesson isn't about benchmarks — it's about which API settings your routing layer must preserve across providers.
GPT-5.6 Sol, Terra, and Luna are generally available with confirmed pricing and a new Responses API feature — Programmatic Tool Calling — that shifts tool dispatch logic inside the model itself, bypassing the gateway tool-orchestration layer most operators rely on.
OpenAI Responses API web_search now returns image results with text citations. When to migrate from web_search_preview and route visual grounding workloads.
