The Hallway Track

OpenAI DevDay

agents APIs developer-tools

Dates
2026-04-10
Location
San Francisco, CA
Ecosystem
frontier lab
Importance
9/10

Related coverage & signals

The Agent for Your Agent.

LangChain · Jun 23, 2026

LangChain launched Engine, an agent that autonomously investigates traces and drafts PRs to improve other agents.

“We're working towards a future where agents improve themselves.”
How To Design In The Agent Era

Y Combinator · Aug 07, 2026

Paper uses HTML/CSS as rendering engine to make design tools natively agent-compatible

“design is this great differentiator. And if you look at every great company of the last 10 20 years, basically all of them have exceptional design.”
What was announced for developers on Windows at Build 2026?

Microsoft Developer (Build) · Aug 27, 2026

Microsoft Build 2026 debuts agent-friendly terminal, WSL containers, and 75+ Unix utilities for Windows developers

“intelligent terminal, which is an experimental terminal experience that we're providing that makes it more seamless to work with agents while working with a terminal prompt”
datasette-agent 0.1a4

Simon Willison · May 24, 2026

datasette-agent adds inline agent chat accessible via keyboard shortcut in Datasette UI

DevDay 2026 Recap

OpenAI · OpenAI Blog · Sep 29, 2026

OpenAI DevDay 2026 unveiled GPT-6 Astra alongside 20+ developer announcements

[AINews] SpaceXAI Grok 4.6 and Grok @Bot

Elon Musk · Latent Space Blog · Aug 13, 2026

SpaceXAI launches Grok 4.6, a 1.5T model targeting knowledge work agents

“builds on Grok 4.5 with a particular focus on long-running agents and more ambitious interactive and visual work”
[AINews] Google I/O 2026: Gemini 3.5 Flash, Omni (NanoBanana for Video), Spark (background agents), and Antigravity 2.0

Latent Space Blog · May 20, 2026

Google I/O 2026 repositioned Gemini as consumer AI surface and developer agent platform with three major launches

“Google used I/O to reposition Gemini as both a consumer AI surface and a developer/agent platform, with three core technical announcements: Gemini 3.5 Flash for fast agentic/coding workloads, Gemini Omni for multimodal generation/editing starting with video, and a broader Antigravity agent stack spanning desktop/CLI”
Quoting John Gruber

Simon Willison · Sep 25, 2026

Meta's Muse is the first consumer-accessible agentic AI with persistent Linux VMs per user

“It's the first consumer-accessible agentic AI system, and Meta has truly done an amazing job with that. But it's a genuinely open question whether consumers have any understanding what this means.”
He Built the World's #1 Open-Source Coding Agent

Y Combinator · Jul 24, 2026

Open-source coding agent OpenCode hit 13M monthly active users with 20x growth in 2026

“We also recently started processing around 7 trillion tokens per day. Uh for context, uh Open Router does a total of around 6 trillion.”
The New Physics of Business — Garry Tan, Y Combinator

AI Engineer · Jul 17, 2026

YC's Garry Tan claims 400x personal coding productivity gain with AI agents.

“One person does what used to take a thousand people. And I don't mean that as a metaphor. I mean that mechanically this year, the people in this room will do this.”
GLM-5.2 is the step change for open agents

Nathan Lambert · Interconnects · Jun 22, 2026

Z.ai's open-weight GLM-5.2 marks a step-change for open agentic models, rivaling top labs.

“minor version numbers can have AI models crossing meaningful user experience thresholds”
WWDC26: Meet Core AI | Apple

Apple Developer (WWDC) · Jun 08, 2026

Apple opens Core AI, its on-device inference framework powering Apple Intelligence, to all developers.

“Core AI is the inference framework powering on-device Apple Intelligence. And now, it's available for you to use, bringing that same power to your app's own intelligence.”
Satya Nadella: Why Humans Still Create Value

Satya Nadella · No Priors · Jun 08, 2026

AI lets enterprises finally capture human capital and tacit knowledge, but humans stay valuable by finding gaps.

“Every company is going to have the human capital that is still going to be super valuable because humans and their ability to find the gaps that exist at all times is going to be the way we all will create value”
GitHub App + Rayfin: Microsoft Build 2026

Microsoft Developer (Build) · Jun 03, 2026

Microsoft unveiled a new GitHub Copilot desktop app that runs parallel agentic coding sessions and auto-merges PRs.

“When I enable agent merge, Copilot will continuously babysit this PR through CI checks, code review, and merge conflicts.”
Developer Keynote (Google I/O '26) - Audio Described

Google Developers (Google I/O) · May 26, 2026

Google launches Anti-gravity agentic platform and Gemma 4 hits 100M downloads in first month

“It's our smartest open model yet. It's purposebuilt for advanced reasoning, agentic workflows, and the response has been incredible. 100 million downloads in the first month and it's pushing Gemma downloads past half a billion.”
How to Build a Model Router in the Harness

LangChain · Oct 06, 2026

LangChain achieved 64% cost reduction in their coding agent via model routing with no quality loss

“we were able to see a 64% reduction in median cost per thread with no measurable change in quality”
Quoting Felix Rieseberg

Simon Willison · Oct 05, 2026

Claude Cowork moves model inference and VM execution to the cloud for mobile and battery improvements

“The "new" version of Cowork runs model inference and the VM in the cloud. Each session gets its own sandbox, not sharing state with other sessions.”
[AINews] Pi 1.0, Pi Durable, and AIE NYC

Latent Space Blog · Oct 02, 2026

Pi 1.0 and Pi Durable launch durable, crash-resistant AI agent runtime in TypeScript

“Every step is recorded as a checkpointed task. If a process fails or restarts, agents and subagents automatically resume from their last exact state.”
Grok 4.7 is now available on Amazon Bedrock

AWS Machine Learning Blog · Sep 28, 2026

xAI's Grok 4.7 lands on Amazon Bedrock with 500K context and self-verification for agents

“A model that checks its own output before continuing tends to fail less catastrophically on long trajectories, where an early mistake otherwise compounds through every later step.”
DHH has gone completely off the rails...

Fireship · Sep 28, 2026

DHH declared hand-writing source code economically unviable, endorsing AI-generated code at Rails World 2026

“It is your obligation to deliver those CLIs by next Friday. So I can use your application without actually ever having to touch it.”