AI News Digest: KIMI K2.6 Incoming, Qwen 3.6 on M5 Max, Claude System Prompts Leaked
April 19, 2026 AI news: KIMI K2.6 announced, Qwen 3.6 rivals Claude on M5 Max, Simon Willison diffs Claude system prompts, and ChatGPT diagnoses a rare disorder.
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