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AI Hacker News Apr 6, 2026 2 min read

OpenAI's current Codex rate card now maps credit usage to input, cached-input, and output tokens instead of relying only on rough per-message estimates. The April 5, 2026 Hacker News thread focused on how that gives teams clearer cost visibility, while also leaving a split world where some plans use the new token-based card and others remain on the legacy message-based card until migration.

AI X/Twitter Apr 5, 2026 2 min read

Mistral AI said on March 26, 2026 that Voxtral TTS offers expressive speech, support for 9 languages and dialects, low latency, and easy adaptation to new voices. Mistral’s March 23 launch post says the 4B-parameter model can adapt from about three seconds of reference audio, reaches roughly 70ms model latency, supports up to two minutes of native audio generation, and is available by API and as open weights.

AI Reddit Apr 4, 2026 2 min read

A `r/singularity` post highlighted reporting that roughly half of planned U.S. data center projects have been delayed or canceled because transformers, switchgear, batteries, and related power equipment remain supply constrained. The story resonated because it reframes AI expansion as a grid and industrial logistics problem, not only a chip problem.