Front page of issue No.12

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OpenAI reveals eight Build Week challenge winners

No.12 · Friday, August 28, 2026 · Today in AI

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In this issue

01OpenAI reveals eight Build Week challenge winnersNearly 47,000 people from 186 countries submitted more than 8,000 projects, and on August 25 OpenAI announced eight category winners. Two of the four first-place teams were a veterinarian and a cardiologist with no coding background.
02OpenAI Expands ChatGPT for Teachers to 55 US School DistrictsEducator count tops 300,000, with a shared data privacy agreement now covering 16 states
03Private AI assistant Instinct sees valuation jump fivefold in three weeksThe startup is pursuing a $250 million Series B that would value it at $2.5 billion. The next test is whether a personal agent still limited to invited users can build trust as fast as its capital is moving.
04OpenAI Product Lead: ChatGPT Work Tops 20 Million UsersIn an interview, Thibault lays out pricing and agent UX strategy
05OpenAI Falls Behind Anthropic as Altman Reboots His ‘Year-End AGI’ PushAfter missing the coding opportunity, OpenAI is winding down Sora and Atlas and betting again on Codex, agents, and Astra. At the same time, a sandbox escape incident has put its largest-scale training run on hold.
06Bill Gates says AI industry knows the risks and hides themGates returns with a 6,000-word essay and a New York Times interview, calling mass unemployment and bioterrorism response "the world's top priority" and proposing a token tax and human-only jobs
07Google DeepMind runs world's first double-blind AI evaluation on GeminiAn encryption method that keeps both model weights and test questions hidden from each other cuts the risk of benchmark manipulation
08Higgsfield Raises $400M With Mirae Asset Capital Backing, Valuation Hits $5.4BAI video platform Higgsfield closed a $400 million Series B. Korea and Japan have landed in its global top five markets, prompting the company to build out a dedicated Asia-Pacific team.