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The Agent SDK is now available.

Define agents as code, with prompts in Markdown and tools in TypeScript. Deploy them on our hosted infrastructure, or run them on your own.

Built-in evals let you measure every change and make your agents better over time. pic.twitter.com/sww7EXYBFI

GPT-6.1 Terra: delivering fast and capable computer use at a lower price.

GPT-6.1 Terra understands what’s on screen, takes action across apps, writes naturally, and is a more capable model for your whole workday with the efficiency to take on more of it. pic.twitter.com/8JTN1yonmV

Codex update: GPT-6.1 Terra in Work and Codex

What changed:
• GPT-6.1 Terra is now available in ChatGPT Work and Codex on Plus, Pro, Business, Enterprise, and Edu plans.
• Combines strong image understanding with precise computer use — reason about images and screens, then act… pic.twitter.com/fMnjY7Nspt

Tomorrow new subs go live and you'll have a hermes agent instance on the cloud automatically FYI.

Not sure what's scary about the installer though?

opencode hit a new growth rate these past two weeks

this type of motion in weekly active numbers at this level is crazy pic.twitter.com/CWhOD8OXiB

We’ve optimized subagent invocation in Kimi Code CLI and the Kimi Code Desktop app for K3.1 Pro, improving orchestration and collaboration on complex tasks.

this paper should be required reading if you use Claude Code.

Wavestone AI Lab analyzed the source code of 11 coding agents, including Claude Code and Codex.

they found the same 7 building blocks inside capable coding agents.

agent = model + harness

here are the 7 parts, from… https://t.co/RxrxbtIWV5

🎓 New from the LangChain Academy team

How agents remember to retrieve the right info at the right time ⤵️ https://t.co/eA2F1pLqjK

Blog post #10: Harness Engineering!

Probably the most relevant topic in 2026.https://t.co/hXX3Q0CIav

Agent Skills started as an experiment in Claude Code. Many across the industry have come to adopt it, so we at Anthropic found it more fitting to donate it to the @AgenticAIFdn, next to MCP. https://t.co/rn33HmNxav

Introducing Gemini API CLI (gemini-api), now available in preview!

Our CLI gives your agent power to generate images, videos, text-to-speech, or music, analyze media, transcribe audio, or manage agents.

No more guessing model strings, throwaway scripts or endless curl.

🧵 👇 pic.twitter.com/GpVHduj80b

Claude Code 2.1.307 has been released.

43 CLI changes, 1 system prompt change

Highlights:
• Added /claude-api api-version to switch Claude API code to 2026-10-21, enabling updated API behavior
• Stop double HTTP MCP sends on disconnect; only idempotent/read-only tools retried… pic.twitter.com/ErdPppNG7W

Here’s what we’re cooking with Codex:https://t.co/EHSalmUTN0

Going to make hermes agent into a DIY game dev studio

For the last 2 weeks, over 60% of T3 Code users who used Codex also used Claude Code as well.

The majority of Codex users are Claude Code users 🤯

Here’s how our engineers use Codex at OpenAI to dig through our codebase, find what needs attention, and chip away at the maintenance backlog: https://t.co/BKKX7VbEXi

I could not imagine being productive without Claude Code Review. It runs on all of my PRs, and catches almost every bug before it goes it. This is a piece of the secret sauce that lets the team and I move so quickly while raising the quality bar https://t.co/7HdyTFsM0I

Introducing Delegations, now generally available.

Your team can hand work to Droid from the tools they already use. pic.twitter.com/X1vWeJ8JHy

Hermes Agent is a launch partner for @nvidia's RTX Spark across the new generation of laptops.

Pick it in the built-in @Windows agent setup flow, run the new generative onboarding, and get straight to work locally or in the cloud.

Linus is impressed! pic.twitter.com/DDL8JODmiS

You can just build things with Codex

We built a site for you to explore hardware projects from the community and share your own. pic.twitter.com/zJQX1hXn2N