Nari Labs' Qwen3-TTS and Qwen3-ASR models rank at the top of Coval's voice AI benchmarks, achieving leading latency and accuracy metrics while offering competitive pricing. The Qwen3-ASR Fast model achieves 44ms latency and 3.6% word error rate for speech-to-text, while Qwen3-TTS Fast delivers 63ms latency and 3.8% WER for text-to-speech, both priced significantly lower than competitors like ElevenLabs and AssemblyAI.
Research tracking people's memories of how they learned about 9/11 found that approximately 40% of personal details were inaccurate after just one year, yet participants remained highly confident in their recollections. These flashbulb memories—vivid personal memories of learning about major events—became stable over time despite their initial inaccuracy, reflecting how memory functions as dynamic reconstruction rather than fixed records.
Apple released a study demonstrating that Apple Watch Series 12 and Ultra 4 feature the most accurate heart rate sensing in wearables, tested against leading competitors like Garmin, Google, Samsung, and Oura across 1,460 participants in outdoor and indoor activities. The new Health Sensing System with upgraded electrical and optical sensors showed statistically better accuracy in 139 of 159 comparisons.
A blind test of ChatGPT, Claude, and Gemini across 20 everyday tasks found ChatGPT leading with a 40% clean win rate, Claude second at 25%, and Gemini at 15%, with 20% of prompts resulting in ties. The evaluation revealed genuine failures: Gemini prescribed unsafe exercises to a back-pain patient, Claude violated explicit recipe constraints and exceeded character limits, and Gemini missed documented meeting action items. Scoring was based on task completion, factual accuracy, clarity, usability, and format compliance.
MSVC is implementing C++23 constexpr cmath functions using LLVM Libc to achieve better accuracy, stability, and consistency than the existing Universal C Runtime. The feature will ship experimentally in compiler version 19.52, enabled via /std:c++23 and /Zc:cmath flags, as the team addresses mathematical inaccuracies and OS-dependent behavior in current math functions.
Apple removed GLONASS satellite positioning support from the Apple Watch Ultra 4, which now supports GPS, Galileo, QZSS, and BeiDou instead. The change may improve positioning accuracy, reduce processing demands, and extend battery life, since GLONASS's single-frequency L1 signal is less effective on dual-frequency devices. The Apple Watch Series 12 retains GLONASS support.