🤖 AI HOT Daily · Oct 12, 2026

Today's focus: Tibo announced GPT-6.1 Sol's default context length in Codex and Work rose from 272k to 500k, about +80%, reducing compaction and helping tasks that need to retain lots of context and detail over long runs, with user overrides still available and a 1M max context. Enterprise deployments landed in a cluster: security firm Sophos used OpenAI Daybreak to cut threat-investigation time 96% and automate ~52% of malware-related tickets; Asana rewrote its browser agent with GPT-6 Astra in Codex for a 76x cost reduction and 5x speedup, then offered the capability to users; Oracle used ChatGPT and Codex across recruiting, engineering and operations to turn expert knowledge into fast, reusable workflows and shorten delivery; legal-tech firm LegalOn cut Codex's estimated daily cost about 65% by tuning model tiers while keeping development speed; and high-frequency trading firm Jump Trading used OpenAI to scale quant research, chaining longer AI workflows to complete complex modeling. Products and ecosystem: OpenAI partnered with contract-lifecycle platform Ironclad to train and evaluate AI computer-use agents on complex contract workflows; ChatGPT for Teens launched a College Planner to help high-schoolers manage college applications with new teen-focused learning and planning content; Radisson, with Accenture, built a ChatGPT plugin so travelers can find, compare and book hotels in-conversation; and developer BraiNOTES was open-sourced for taking handwritten notes directly on course PDFs inside browser tabs, an extension of the web LaTeX editor TeXbrain. Opinion: Andrej Karpathy tweeted that the 'common cognitive gap' on LLMs' real capabilities across groups keeps widening, warning of resulting expectation and governance divides. (Note: the aihot digest was thin this day; supplemented from OpenAI's official blog and Hacker News.)

1. 1. GPT-6.1 Sol's Default Context in Codex and Work Rises to 500k

   Up ~80% from 272k to cut compaction on long-context tasks, with user overrides and a 1M maximum.

2. 2. Sophos Cuts Threat-Investigation Time 96% With OpenAI Daybreak

   The security firm sped up investigations and automated about 52% of malware-related ticket workflows.

3. 3. Asana's Browser Agent: 76x Cheaper, 5x Faster on GPT-6.1 Sol

   Asana rewrote its browser agent in Codex with GPT-6 Astra for a 76x cost cut and 5x speedup, then shipped it to users.

4. 4. Oracle Compresses Days of Work Into Minutes With ChatGPT and Codex

   Across recruiting, engineering and operations, expert knowledge becomes fast, reusable workflows that shorten delivery.

5. 5. LegalOn Cuts Codex Daily Cost About 65%

   By tuning model tiers, the legal-tech firm lowered estimated daily cost while keeping development speed.

6. 6. Jump Trading Scales Quant Research With ChatGPT

   The high-frequency trading firm chains longer AI workflows to complete complex modeling.

7. 7. OpenAI and Ironclad Advance Computer Use for Contracts

   They train and evaluate AI computer-use agents on complex contract workflows.

8. 8. ChatGPT for Teens Adds a College Planner

   It helps high-schoolers manage applications alongside new teen-focused learning and planning content.

9. 9. Radisson Puts Hotel Discovery in a ChatGPT Plugin

   With Accenture, Radisson lets travelers find, compare and book hotels in-conversation.

10. 10. Show HN: BraiNOTES for Handwritten Notes on Course PDFs

    It adds handwritten notes to lecture PDFs in the browser, extending the web LaTeX editor TeXbrain.

11. 11. Karpathy: The 'Common Cognitive Gap' on LLM Capabilities Is Widening

    Perceptions of what LLMs can really do are diverging across groups, raising expectation and governance divides.