TODAY'S AI NEWS: OpenAI just dropped DIY tools to build custom...

@rowancheung
Rowan Cheung@rowancheung
115 views Mar 12, 2025 ~2 min read
Advertisement
1
TODAY'S AI NEWS: OpenAI just dropped DIY tools to build custom autonomous AI agents

Plus, more news from Meta, Reka, Cartesia, Harvey, Luma Labs, and Manus.

Here's everything you need to know:
2
OpenAI released new DIY tools for building custom AI agents, including:

A CUA model-powered Responses API with tools for web browsing, computer use, and file management

An open-source Agents SDK to orchestrate single and multi-agent systems
0:21
3
Meta is testing a new, in-house chip to cut costs on AI training

Manufactured by TSMC, the chip is part of the company's MTIA series and is likely to be deployed in 2026

It will help Meta cut reliance on Nvidia's pricey GPUs for training large models
4:18
4
Reka open-sourced Flash 3, a 21B parameter reasoning model

—Matches o1-mini on benchmarks
—32k context length
—Ideal for on-device deployment
—Finetuned on synthetic and public datasets
—Powers Nexus, Reka's platform for creating and managing AI agents
1:00
5
Cartesia announced $64M in funding and a new Sonic 2.0 state space model

The model generates realistic AI voice across 16 languages and also includes an ultra-fast 'Turbo' mode

In blind tests, 1.5x as many people preferred Sonic over other providers
2:54
6
Harvey released Workflows AI agents for legal tasks, with reasoning, planning, and adapting capabilities

In blind reviews, lawyer evaluators rated legal work produced by workflow agents as equal to or better than that of human lawyers
0:50
7
Luma Labs introduced a new pre-training technique called Inductive Moment Matching

It produces superior image generation quality 10x more efficiently than current approaches

Luma says the approach breaks the algorithmic ceiling of diffusion models!
0:08
8
The team behind Manus partnered with Alibaba's Qwen to develop a Chinese version of its autonomous agent

The collaboration will integrate Manus with Qwen's open-source models and computing infra

This comes just after Manus went viral last week!
4:17
9
As always, I'll be sending out a more in-depth rundown on all the AI news, and why it actually matters in ~5 hours in my newsletter.

Join 1,000,000+ readers for free and never miss a thing in AI ever again:
therundown.ai/subscribe
10
That's it for today's news in the world of AI.

I share what's happening in AI every day, follow me @rowancheung for more.

If you found this helpful, support me with a like/retweet on the first tweet of this thread:
@rowancheung
Rowan Cheung@rowancheung
TODAY'S AI NEWS: OpenAI just dropped DIY tools to build custom autonomous AI agents

Plus, more news from Meta, Reka, Cartesia, Harvey, Luma Labs, and Manus.

Here's everything you need to know:
Actions
What You Can Do
  • Export as PDF or Markdown
  • Batch Export to Notion
  • Bookmark & Highlight
  • Screenshot Tweet
Create Free Account

Includes 7-day Premium trial

Advertisement