{"slug": "openai-devday-2026-what-developers-need-to-do-now", "title": "OpenAI DevDay 2026: What Developers Need to Do Now", "summary": "OpenAI launched more than 20 products at its DevDay on September 29, 2026, including GPT-6.1 Sol, which carries a cached input price of $0.10 per million tokens. The article identifies four DevDay releases as changing how developers build and one that can be ignored for now, with the cached pricing positioned as the key shift for agentic loops that reuse system prompts, tool definitions and conversation history.", "body_md": "OpenAI held DevDay on September 29th and launched more than 20 products. Most recaps listed all of them. This one covers the four that will change how you build — and one you can safely ignore for now. Sol’s Cached Pricing Changes the Agentic Cost Equation GPT-6.1 Sol is getting coverage as a cheaper Astra alternative. That’s true but it’s not the real story. The real story is the cached input price: $0.10 per million tokens. If you’re running any agentic loop — system prompts, tool definitions, conversation history that gets reused — you’re caching most of your context. At […]\n\nThe post", "url": "https://wpnews.pro/news/openai-devday-2026-what-developers-need-to-do-now", "canonical_source": "https://byteiota.com/openai-devday-2026-what-developers-need-to-do-now/", "published_at": "2026-10-07 14:09:30+00:00", "updated_at": "2026-10-07 14:20:18.205797+00:00", "lang": "en", "topics": ["artificial-intelligence", "large-language-models", "ai-agents", "ai-products", "ai-tools"], "entities": ["OpenAI", "DevDay", "GPT-6.1 Sol", "Astra"], "also_reported_by": [], "alternates": {"html": "https://wpnews.pro/news/openai-devday-2026-what-developers-need-to-do-now", "markdown": "https://wpnews.pro/news/openai-devday-2026-what-developers-need-to-do-now.md", "text": "https://wpnews.pro/news/openai-devday-2026-what-developers-need-to-do-now.txt", "jsonld": "https://wpnews.pro/news/openai-devday-2026-what-developers-need-to-do-now.jsonld"}}