Daily Brief
2026-09-08 · Morning · 8 items
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SemiAnalysis: TPU inference goes external, up to 50% better cost-performance
TPU stack is reaching outside customers via tools like InferenceX, eroding CUDA's moat.X：SemiAnalysis (@SemiAnalysis_)
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ChatGPT Work rolls out writing-style learning, carrying personal voice into future drafts
Agents trained on a user's phrasing, sign-offs and casing will draft email in a voice that reads distinctly human.X：Kim (@kimmonismus)
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Unitree unleashes humanoid robot to fight autonomously, powered by a world model with no human operator
UnifoLM-X2-1.0 forecasts physical interactions before each move, replacing human teleoperation with real-time decisions in a first for the field.X：Rohan Paul (@rohanpaul_ai)
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Similarweb data shows ChatGPT's traffic share rebounded for the first time in about two months
Share climbed from 52.7% three months ago to 55.5% one month ago, ending a prior streak of declines.X：Kim (@kimmonismus)
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GPT-6 Astra cleared Portal in about 23h43m with no human intervention
At Astra list pricing the run would have cost at least $570 in tokens, but the actual spend was just $200 via a Codex subscription.The Decoder：AI News（RSS）
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Anthropic hackathon winner open-sources full Claude Code setup
MIT-licensed bundle ships 68 subagents, 286 skills, and 94 commands ready out of the box.X：阿易 AI Notes (@AYi_AInotes)
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Ex-Cursor engineer on shipping 1,000 PRs a month with AI agents
She wakes up to 20 PRs already merged into main, so validation, not coding, is the real bottleneck.X：阿易 AI Notes (@AYi_AInotes)
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Similarweb: ChatGPT's share of AI chat site traffic rebounds to 55.5%
Up 2.8 points from 52.7% in three months, while Gemini slipped from 27.8% to 25.6%.The Decoder：AI News（RSS）