Signal Stack

B2B technology signals above the noise.

AI Infrastructure

Decision briefings on AI infrastructure: model APIs, self-hosting, cost structures, and adoption criteria.

AI Infrastructure Adopting confidential computing for edge AI in Clinical Care Healthcare edge AI demands confidential computing only under strict zero-trust physical risks, while network isolation and dynamic masking solve standard clinical inference. September 8, 2026 AI Infrastructure API Models vs Self-Hosting: Evaluating Cost per Successful Task A rigorous engineering evaluation framework for choosing between hosted AI APIs and self-hosted infrastructure based on cost per successful task. September 7, 2026 AI Infrastructure AWS vs Private AI Infrastructure: The Real Utilization Boundary A technical decision briefing evaluating sustained GPU utilization levels, high-density colocation constraints, and operational cost thresholds between AWS and dedicated infrastructure. September 6, 2026 AI Infrastructure Evaluating high-bandwidth flash: When Cheaper Capacity Cuts Cost An operator analysis of when high-bandwidth flash reduces AI inference capacity costs, how KV cache offloading affects tail latency, and the tests to run before procurement. September 5, 2026 AI Infrastructure Managed Inference Cost vs Self-Hosting: The Enterprise AI Threshold A conditional decision guide for engineering leaders evaluating managed inference endpoints against fine-tuning and dedicated self-hosted infrastructure. September 3, 2026 AI Infrastructure Hyperscaler vs Specialist GPU Cloud: What Decides Fit Capacity, GPU memory bandwidth, and contract terms — not brand — decide whether training and inference workloads belong on a hyperscaler or a specialist GPU cloud. August 9, 2026 AI Infrastructure MCP 12-Month Deprecation Window: What Enterprises Must Verify MCP's new SEP-2577 policy guarantees a 12-month gap between deprecation and removal, but the same release deprecated three capabilities and shifted security responsibility onto implementers. Here's how to size that window against your own SDK and security-review cycle. August 7, 2026 AI Infrastructure Amazon Bedrock vs SageMaker AI: What Actually Decides It SageMaker AI's managed instances cost 20–40% more than equivalent EC2, a premium that only pays off when a workload needs training control Bedrock's managed API doesn't offer. Here's the decision rule AWS's own guide draws between the two services. August 6, 2026 AI Infrastructure Liquid Cooling for AI Data Centers: The Density Line Rack density, facility power, and cooling-water conditions that determine when liquid cooling stops being optional for AI deployments, plus the acceptance tests worth putting in the contract before the racks ship. August 5, 2026 AI Infrastructure Why Power Delivery Constraints Now Gate AI Data Center Rollouts GPU racks approaching a full megawatt are breaking the 54-volt DC distribution standard and outrunning grid interconnection timelines. Here is what operators need to verify before committing to a site. August 1, 2026