TESSFeed

Technical AI signals · Daily at 8 PM ET

Tuesday, September 29, 2026

OpenAI Agent Stack and Guardrails

Today was led by OpenAI turning DevDay into a concrete agent platform rollout around GPT-6.1 Sol, dots, Codex cloud environments, and routing APIs, while agent safety and self-hosted runtime infrastructure kept hardening underneath.

🛰️  Top Signals

X / Twitter

Blogs

Quoting Anthropic Frontier Red Team

The post says GLM-5.3 achieved full control-flow hijacks in 4 of 100 benchmark tasks, while Claude Mythos Preview did so in 6.

Simon Willison

DevDay 2026 Recap

OpenAI says the recap covers more than 20 announcements, including GPT-6 Astra, ChatGPT, Codex, APIs, security, and new builder tools.

OpenAI

Claude Sonnet 5.5

Simon Willison says Claude Sonnet 5.5 runs 30%+ faster and costs up to 30% less for most work than Sonnet 5.

Simon Willison

Hacker News

Research

YouTube

OpenAI DevDay 2026 Keynote (FULL)

The keynote says OpenAI announced and demoed more than 20 launches, including dots, ChatGPT Spaces, GPT-6.1 Sol, and Astra Ultrafast.

OpenAI

How to Build Team Agents

The episode covers agents built for an entire team instead of a single user.

The AI Daily Brief

Hugging Face

Edge0/Audio8-ASR-Infinite

Audio8 ASR Infinite is a native streaming speech recognition model with selectable 80/120/160 ms audio clocks and 240–560 ms transcription delay.

model

Qwen/Qwen-Image-2.1

Qwen-Image-2.1 is a unified text-to-image generation and image editing model with a 7B visual generation component.

model

XingChen-AGI/TeleOCR

TeleOCR is a document parsing model renamed from NaviDC-OCR for both digital and camera-captured documents.

model

Contrastive-LM/CLM-v0.1-8B

CLM-v0.1-8B uses a contrastive learning objective on a frozen Qwen3-8B encoder and is reported to match Jev on computer-use, gaming, and tool-calling tasks with up to 9× lower latency.

model

nvidia/Nemotron-3-Diarization

Nemotron 3 Diarization is an open-weight speaker diarization model for streaming and offline inference with up to eight speakers.

model

Qwen/Qwen3.8-27B

Qwen3.8-27B ships as Hugging Face weights and configuration files and is described as compatible with Transformers, vLLM, SGLang, and TokenSpeed.

model

Lightricks/LTX-2.5

LTX-2.5 is tagged for image-to-video, text-to-video, video-to-video, text-to-audio, and video-to-audio generation.

model

prism-ml/Ternary-Bonsai-2-27B-gguf

Bonsai 2 27B uses ternary transformer weights in GGUF and is described as about 9.3× smaller than FP16 while retaining 98.2% of FP16 intelligence.

model

XiaomiMiMo/MiMo-V2.6-RL-oss

MiMo-V2.6-RL-oss provides RL training environments for LLM agents across code, cyber, general knowledge, visual web, and music tasks.

dataset

convaiinnovations/laya

Laya returns typed answers and calibrated probabilities in a single forward pass of about 33 ms across more than 100 languages.

model

apple/LensVLM-9B

LensVLM selectively expands only relevant pages from compressed images of text into uncompressed form using learned tools.

model

TaichuAI/ZDTaichu5.0-9B

ZDTaichu5.0-9B uses a Qwen3.5-9B language backbone with a C-RADIOv4-H vision encoder and supports text, images, and video input.

model

GitHub

vectorize-io/hindsight

Hindsight is an agent memory system built to help agents learn over time instead of just recalling conversation history.

Python · ★ 42,770

paperclipai/paperclip

Paperclip is a Node.js server and React UI that orchestrates teams of AI agents with goals, budgets, governance, and coordination.

TypeScript · ★ 94,377

mvschwarz/openrig

OpenRig defines agent teams in YAML and runs Claude Code and Codex together as one rig.

TypeScript · ★ 2,378

t8y2/dbx

DBX packages more than 100 databases into a 25 MB desktop app, Docker image, CLI, and built-in AI assistant.

Rust · ★ 21,924

VectifyAI/PageIndex

PageIndex uses reasoning-based RAG with no vector database or chunking and offers local indexing, retrieval, and chat.

Python · ★ 37,265

dream-num/univer

Univer is a plugin-based office SDK for spreadsheets, documents, presentations, bases, boards, and PDFs that runs in the browser and on Node.js.

TypeScript · ★ 21,814

debpalash/VoiceStudio

VoiceStudio supports voice cloning, dubbing, dictation, transcription, and audiobook creation in 646 languages with local workflows and optional remote workers.

Python · ★ 47,932

cs341-illinois/coursebook

The repository is an open-source introductory systems programming textbook for CS 341 at the University of Illinois Urbana-Champaign.

TeX · ★ 3,057

willfaust/Madeira

Madeira combines Wine, FEX-Emu, and DXMT to run Windows PC games on a non-jailbroken iPhone, and the project says Thumper and ULTRAKILL are playable.

C · ★ 1,079

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