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ChatGPT Voice Mode Runs a Weaker Model — And Most Users Don't Know

Simon Willison flagged it on April 10, 2026: the AI you talk to in ChatGPT is not the same model as the one you type to. Here's what's actually running under voice mode, why it matters, and how to test it yourself.

Published April 11, 2026
12 min read
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Qwen 3.6 Plus: The 1M-Context Model That Beat Claude Opus on Terminal-Bench

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AI Models

Microsoft MAI Models: MAI-Transcribe-1, MAI-Voice-1, and MAI-Image-2 Benchmarks and Pricing

Microsoft launched three in-house AI models on April 2, 2026: MAI-Transcribe-1 for speech-to-text, MAI-Voice-1 for voice generation, and MAI-Image-2 for image creation. Here are the benchmarks, pricing, and what they mean for developers.

AI Models

Google Gemma 4: How a 31B Open Model Beats 400B Rivals (2026)

Technical deep-dive into Google Gemma 4: architecture, benchmark scores, model sizes (E2B, E4B, 26B MoE, 31B Dense), and practical guide for developers choosing between variants.