Azure Maia 300: what Microsoft silicon means for Foundry
Microsoft announced Azure Maia 300 on 12 October 2026 with 288 GB of HBM4, 18 TB/s and a claim of 40% more tokens per megawatt, but the chip that reaches Microsoft Foundry by year end is Maia 200, serving OpenAI and open-weight models in unnamed European regions with no price change. What the silicon transition does and does not change for EU data zone deployments, model choice and your evaluation baseline.
Microsoft-Decision-1 in Foundry: $0.042 and the EU zone
Microsoft-Decision-1 went GA in Microsoft Foundry on 9 October 2026 at $0.042 per million input tokens with free output, returning calibrated probabilities over fixed options instead of text, and it launched with an EU Data Zone at the same price as the US zone. We compare it with OpenAI's Decisions API and H2O-Lightning-4B, run the cost math for ticket routing and agent step-gating, and set out what Swedish buyers must record about its Qwen3.5-9B base.
GPT-6 Astra migration on Azure: the GPT-5.6 Sol checklist
GPT-5.6 Sol retires on Foundry in January 2028, so moving to GPT-6 Astra is a choice rather than a deadline, and it touches more than a deployment name: tool calls must move to the Responses API, effort none and temperature disappear, and every line on the price sheet costs 2 to 2.5 times more. A phase-by-phase checklist built on Microsoft's migration process, OpenAI's model guidance and the Learn pages, with the Swedish residency caveat that keeps part of your traffic on Sol.
ChatGPT, Claude and Grok down at once: your failover plan
On 3 September 2026, ChatGPT, Claude and Grok all suffered outages on the same afternoon, each from an independent cause: a routing error at OpenAI, an infrastructure issue at Anthropic and a compute-centre failure behind Grok. A runtime failover plan for Azure teams: Foundry's model router with automatic fallback, APIM's AI gateway and circuit breaker, what redundancy really costs, and the Data Zone and DORA constraints that shape it.
Foundry EU Data Zone premium doubles: the Swedish cost math
From 1 September 2026 Microsoft Foundry charges 20 percent over Global for EU Data Zone deployments, up from 10 percent, and 30 percent for Sweden Central regional, while Global pricing stays flat and West Europe regional hits 50 percent. Pay-as-you-go customers only pay the new rate on models launched from today, PTU customers pay immediately, and GPT-5.6 is not yet on regional Standard in Sweden, so here is the cost math and a six-step checklist.