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Source · Daily Brief

AI Daily Brief — 15 July 2026

Thinking Machines, Mira Murati’s startup, shipped Inkling — a 975-billion-parameter open-weight multimodal model that now ranks as the largest open-weight release from a US lab. OpenAI simultaneously detailed GPT-Red, an automated internal system trained to find prompt injection vulnerabilities in its own models at a speed and scale that exceeds human red-teamers.

Top stories

  • Thinking Machines releases Inkling. The 975B open-weight model handles text, image, and audio with a 1-million-token context window, trained on 48 trillion tokens. It launched on HuggingFace, Tinker, and Databricks, and immediately ranked first among US open-weight models on Agentic Web App Arena. via TechCrunch – AI
  • OpenAI details GPT-Red. The company published a paper on GPT-Red, an internal LLM trained to find prompt injection vulnerabilities across its deployed models — reportedly outperforming human testers at both speed and coverage. via OpenAI
  • GPT-5.6 Sol reportedly disproves a 30-year statistics conjecture. OpenAI’s Sol model is claimed to have resolved a long-standing open problem in statistics in under 90 minutes — a result that has drawn significant attention but awaits independent verification. via THE DECODER
  • xAI open-sources Grok Build. Elon Musk announced that Grok Build, xAI’s agentic coding environment, is now available under the Apache 2.0 licence. via Hacker News (front page)
  • Apple Intelligence clears China approval, powered by Qwen. Chinese regulators approved Apple Intelligence for domestic launch, with Alibaba’s Qwen model serving as the underlying AI for the Chinese market. via TechCrunch – AI
  • Hack reveals Suno trained on YouTube audio. A security incident exposed evidence that the AI music generator Suno used YouTube audio in its training data, raising fresh questions about copyright and consent in generative media. via TechCrunch – AI

Who shipped

Thinking Machines was the day’s loudest shipper with Inkling. OpenAI drove coverage across three fronts: the GPT-Red safety paper, Sol’s claimed mathematical breakthrough, and the Codex Micro keyboard — a $230 input device for Codex users launched amid an ongoing hardware legal dispute. xAI contributed Grok Build’s open-source release and noted that Grok 4.5 climbed to second on the FrontierSWE benchmark.

Open-source pulse

Inkling (975B, Thinking Machines) is the headline OSS drop — multimodal, permissive weights, built for practical enterprise deployment. Grok Build (xAI, Apache 2.0) adds agentic coding tooling to the open stack. Bonsai 27B, described as a full open reasoning model small enough to run on an iPhone, also surfaced today. The German Soofi Consortium released Soofi S 30B-A3B, a Mamba-Transformer MoE foundation model optimised for both German and English.

Money, infra & hardware

Indian AI coding startup Emergent reached unicorn status after closing a $130M Series C just over a year after launch. Enterprise voice startup Rime raised a $24M Series A to expand AI-powered customer-call handling.

Quiet corners

Google DeepMind and Meta AI were absent from the primary-source news cycle today. Mistral also produced no public announcements in the window.

By the numbers

  • 454 stories today across 21+ sources
  • Most-mentioned model: GPT (23 tagged posts)
  • Most-mentioned lab: OpenAI
  • Notable absences: Google DeepMind, Meta AI, Mistral

Compiled by AI Feed’s editor from all 454 headlines published on 15 July 2026.