🚨 AI News | TestingCatalog

DeepSeek released a set of new open-source models from the long-awaited V4 family that perform on par with GPT-5.4 and Opus 4.6.

- DeepSeek-V4 Preview
- DeepSeek-V4-Pro
- DeepSeek-V4-Flash

V4 models are available on APIs and DeepSeek Chat!

Testing time 👀

xAI released a new "Grok Voice Think Fast 1.0" flagship voice model for building voice Agents.

The model is also available on the xAI Console for testing.

Claude Managed Agents now have Memory support! In case you missed it, Managed Agents are available on Anthropic Workbench.

Conway will likely get it too 👀

Codex gained expanded Browser Use capabilities, updated document generation, and a new auto-review feature.

The Super App 👀

OpenAI launches GPT-5.5 on ChatGPT and Codex

OpenAI launched GPT-5.5 as a work-focused model for coding, research, analysis, and computer tasks. It offers stronger autonomy, benchmark gains, broad ChatGPT and Codex rollout, lower token use, and upcoming API access.

🗞 #chatgpt @testingcatalog

OPENAI 🚨: GPT-5.5 HAS BEEN RELEASED ON CHATGPT AND CODEX!

> A new class of intelligence for real work and powering agents, built to understand complex goals, use tools, check its work, and carry out more tasks through to completion.

GPT-5.5 Pro is now available for Pro, Business, and Enterprise users in ChatGPT.

OPENAI 🚨: GPT-5.5 AND GPT-5.5 PRO HAVE BEEN SPOTTED ON OPENROUTER!

- gpt-5.5-20260423
- gpt-5.5-pro-20260423

Soon 👀

OPENAI 🚨: SPUD, AKA GPT-5.5 HAS BEEN TEASED BY OPENAI, WHICH POINTS AT A HIGH CHANCE OF THURSDAY’S RELEASE.

> This teaser follows earlier preparation when internal model names became visible on Codex for a short amount of time.

> Earlier this week, a similar image post was used to tease ChatGPT Agents.

Xiaomi released new MiMo-V2.5-Pro and MiMo-V2.5 open-source models.

> MiMo-V2.5-Pro, the strongest model yet.

> MiMo-V2.5, native omnimodal with strong agentic capabilities.

X is deprecating X Communities and introducing joinable Group Chat links. Group Chats currently only support up to 350 members.

Not a surprise but community reactions look rather like a backlash at this moment.

Have you been using Communities actively?

OpenAI released ChatGPT for Google Sheets and it is now available as an add-on on Google Marketplace!

We need a sheet benchmark 👀

OpenAI launched 24/7, always-on Workspace Agents in ChatGPT

OpenAI launched ChatGPT workspace agents for teams to run shared, long-running workflows across tools with approvals, scheduling, app connectors, and admin controls!

🗞 #chatgpt @testingcatalog

ICYMI: OpenAI launches Images 2.0 on ChatGPT, Codex, and API

OpenAI launched ChatGPT Images 2.0 on April 21, 2026, as gpt-image-2 across API, ChatGPT, Codex, and business tools, adding Instant and Thinking modes, stronger text rendering, multi-image consistency, and up to 2K officially.

🗞 #chatgpt @testingcatalog

Jules v2 Early Access form is now open 👀

> Most teams are drowning in scattered context—feedback, logs, and tickets that disappear into the void.

> We're building a new version of Jules that is an end-to-end agentic product development platform. It reads your entire product context to figure out what to build next, comes up with solutions, and then ships a PR.

> This is an early experiment for teams with a software product in the market. We don't have all the answers yet, but the waitlist is now open for product teams who want to help us shape this new direction.

h/t @LanceAdams

OPENAI 🚨: WORKSPACE 24/7 AGENTS ARE NOW AVAILABLE ON CHATGPT BUSINESS, ENTERPRISE, AND EDU PLANS.

New ChatGPT Agents are powered by Codex, can use Skills, Connectors, and execute scheduled actions.

OpenAI Cloud Next 👀

Actually, this is quite big 🔥

Anthropic recently introduced Live Artifacts for Cowork, which allows users to build any web app using data from available connectors.

When opened, Artifacts pull fresh data, so you can build them once and reuse them later.

Why does it matter?

> This shift removes a value from UI interfaces b/c now everyone can use Claude to build their own.

> Upcoming 24/7 agent from Claude will support "UI Tabs", which are likely "Live Artifacts". Users will be able to build tools for both themselves and their AI agents.

GenUI is here 👀

Example - OKRs dashboard based on Notion data.