“Cognition announced Fusion in Devin CLI, an efficient frontier harness for Fable and Astra that lets users select separate models for planning and cost-effective execution.”

#1 𝕏 Cognition announced Fusion in Devin CLI, an efficient frontier harness for Fable and Astra that lets users select separate models for planning and cost-effective execution. Cognition claims it is 39% cheaper across coding benchmarks. Also covered by: @Cognition #2 📝 OpenAI News Rapidly scaling online storage to serve over 1 billion ChatGPT users - An engineering deep dive into scaling online storage systems to support over one billion ChatGPT users, describing architecture and operational approaches used to meet massive scale and reliability needs.

“Cognition released SWE-2, now available in Devin across Desktop and CLI.”

GenAI PM Daily September 11, 2026 GenAI PM Daily 🎧 Listen to this brief 3 min listen Today's top 20 insights for PM Builders, ranked by relevance from Blogs, X, and YouTube. OpenAI introduces fully managed Agents API with Codex #1 📝 OpenAI News Introducing the Agents API - On September 10, 2026 OpenAI launched the Agents API in public beta, letting developers create production-ready cloud agents with a single API call (example shows model gpt-6-astra, multi-agent support, tools, vault IDs, and an OpenAI-hosted environment) while OpenAI hosts the agent harness and offers choice of sandboxes. Partner integrations include Blaxel, Cloudflare, Daytona, DigitalOcean, E2B, Modal, Oracle, Runloop, and Vercel, and early customers report concrete gains such as Ciridae improving an evaluation score from 0.71 to 0.85 with a 4x latency reduction, SafetyKit reducing cost per case by 60%, and Hypha cutting failed agent responses by 86%. #2 📝 OpenAI News Build more natural voice experiences with GPT‑Live‑1 in the API - On September 10, 2026 OpenAI launched GPT‑Live‑1 in the API, a full‑duplex voice model that listens and speaks simultaneously to replace chained STT–LLM–TTS pipelines and offers ASR transcripts, keyword biasing, telephony support, long‑session reliability, and controls for tone, pace, and turn detection. Early evaluations report Speak cut interruptions by almost 80% versus previous turn‑based systems, developers said it simplified codebases by 80% and removed 23K lines of code, GPT‑Live‑1 improved Full Duplex Bench performance by 30 percentage points over GPT‑Realtime‑2.1, and when paired with GPT‑6 Astra (medium) it ranked #1 on Tau3. #3 𝕏 Cursor announced Projects, a new way of working in Cursor that replaces task-by-task chats with a coordinator agent in a single, persistent thread. The agent is always on, proactively manages work with subagents, and improves over time. Also covered by: @Cursor #4 𝕏 Cognition released SWE-2, now available in Devin across Desktop and CLI. It is free for all Pro, Max, and Teams subscribers for the next month. Also covered by: @Cognition

“Cognition shared the methodology Devin and a Cognition researcher used to build what it described as the world’s fastest GPU-optimized lattice siever, making number factoring 10x cheaper than the previous state of the art.”

#3 𝕏 Cognition shared the methodology Devin and a Cognition researcher used to build what it described as the world’s fastest GPU-optimized lattice siever, making number factoring 10x cheaper than the previous state of the art. The post followed Cognition’s publication of an RSA-260 factorization the previous week.

“Cognition announced that GPT-6 Astra is coming to Devin, claiming it performs within 0.4 points of Fable 5 on FrontierCode 1.1 at a 64% lower cost.”

Cognition announced that GPT-6 Astra is coming to Devin, claiming it performs within 0.4 points of Fable 5 on FrontierCode 1.1 at a 64% lower cost. Cognition also says Astra sets a new state of the art on its internal testing benchmark, producing more comprehensive tests, clearer reports, and better video evidence.

“Cognition announced that Devin sessions can create managed subagents with their own virtual machines, which can initiate additional subagents to orchestrate complex workflows.”

#8 𝕏 Cognition announced that Devin sessions can create managed subagents with their own virtual machines, which can initiate additional subagents to orchestrate complex workflows. These nested agents can be managed from the sidebar.

“Ryan Carson moved most engineering work to cloud-based Devin agents; he previously spent about $5,000 per month on Devin and reached $20,000 in one month before receiving $20,000 per month in Cognition credits.”

▶️ How I manage 15 AI agents 24/7 as a solo founder | Ryan Carson How I AI Podcast Ryan Carson manages roughly 10–15 concurrent Devin threads by sorting them into Bugs and P0/P1/P2 folders, using a handwritten weekly-priorities list to keep P0 business work visible, and using Devin playbooks for account monitoring and PR landing. Ryan Carson moved most engineering work to cloud-based Devin agents; he previously spent about $5,000 per month on Devin and reached $20,000 in one month before receiving $20,000 per month in Cognition credits.

“Cognition announced Slack Code in Devin, which enables Devin to proactively create dedicated code channels to keep work focused.”

#5 𝕏 Cognition announced Slack Code in Devin, which enables Devin to proactively create dedicated code channels to keep work focused. Cognition also shared details on tuning Devin’s personality in Slack.

“Cognition shared that Devin Outposts can run on Vercel Sandbox to build and test apps in an isolated microVM, with support for Docker, private-network access via VPN, and filesystem snapshots that preserve repositories, dependencies, and build state.”

#4 𝕏 Cognition shared that Devin Outposts can run on Vercel Sandbox to build and test apps in an isolated microVM, with support for Docker, private-network access via VPN, and filesystem snapshots that preserve repositories, dependencies, and build state. #5 in Guillermo Rauch shared that one line of code in AI SDK saves 90% or more in DeepSeek v4 Flash AI Gateway tokens.

“Cognition announced that improvements to the harness and models made Devin Fusion 4% more intelligent and 27% less expensive on FrontierCode 1.1.”

#7 𝕏 Cognition announced that improvements to the harness and models made Devin Fusion 4% more intelligent and 27% less expensive on FrontierCode 1.1.

“Cognition launched Outposts, a new Devin feature that lets you natively run and test apps on any computer.”

#8 𝕏 Cognition launched Outposts, a new Devin feature that lets you natively run and test apps on any computer.