Denis Knaack – BlogExpert articles on software engineering in the age of AI, software architecture, and the realistic use of AI in business.https://knaack.it/en-USAI subscriptions, token prices and API costs: What do you get for your money?https://knaack.it/en/blog/ai-subscriptions-token-prices-api-costs-value/https://knaack.it/en/blog/ai-subscriptions-token-prices-api-costs-value/Why intensive users can receive remarkable value from an AI subscription—and why exceptionally cheap offers still deserve closer scrutiny.Tue, 28 Jul 2026 00:00:00 GMTAI costsToken pricingChatGPTClaudeGDPR and the CLOUD Act in the Age of AI: Data Security for Businesseshttps://knaack.it/en/blog/gdpr-cloud-act-ai-data-security-business/https://knaack.it/en/blog/gdpr-cloud-act-ai-data-security-business/Why a European server location is not enough—and why the provider’s jurisdiction, the server location, and the route to the model must be assessed together.Mon, 27 Jul 2026 00:00:00 GMTGDPRCLOUD ActData SecurityEnterprise AIClosed Models, Open Weights and Open Source in the Enterprisehttps://knaack.it/en/blog/closed-models-open-weights-open-source-enterprise/https://knaack.it/en/blog/closed-models-open-weights-open-source-enterprise/What distinguishes these three model categories, which hosting options they provide, and what enterprises should consider when evaluating control and data security.Sun, 26 Jul 2026 00:00:00 GMTAI ModelsOpen SourceOpen WeightsAI Engineering