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Tech & Language Insights from Building satzklar

August 8, 2025

Open Source LLMs vs Claude 4: A Reality Check for German Language Parsing

GPT-OSS Claude LLM Comparison German Parsing Open Source AI

We tested GPT-OSS 120B, Llama 4, DeepSeek R1, and other open source models against Claude 4 for German parsing. Despite 100% parse success, GPT-OSS drops 50% of words. Some day an open source model will beat Claude. Not today.

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June 22, 2025

Implementing Natural German Text-to-Speech: Why We Chose Narakeet Over Browser APIs

TTS Narakeet German Web Development Language Learning

German pronunciation is challenging for learners. This technical deep-dive explores our journey from unreliable browser TTS APIs to a robust Narakeet implementation that powers natural German audio throughout our application - from word pronunciation to story reading.

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June 19, 2025

Building a German Grammar Visualizer: When AI Meets Linguistic Analysis

AI Computational Linguistics Claude German

German learners face a unique challenge: the language's flexible word order and complex grammatical relationships create a web of dependencies that traditional learning tools struggle to illuminate. This post explores how we built satzklar.net entirely using Claude for both development and runtime language processing.

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