🤖 AI Agents Weekly: GPT-5.5, DeepSeek-V4 Preview, Kimi K2.6 Agent Swarm, Diversity Collapse, Sakana Fugu, and More
GPT-5.5, DeepSeek-V4 Preview, Kimi K2.6 Agent Swarm, Diversity Collapse, Sakana Fugu, and More
In today’s issue:
OpenAI ships GPT-5.5
DeepSeek open-sources V4 Preview
Kimi releases K2.6 Agent Swarm
ACL paper flags diversity collapse in multi-agent LLMs
Sakana launches Fugu multi-agent beta
ChatGPT gets Workspace Agents
Codex adds Chronicle screen memory
Qwen3.6-27B drops flagship coding dense
Gemini Deep Research Max lands
Google unveils eighth-generation TPUs
And all the top AI dev news, papers, and tools.
Top Stories
GPT-5.5
OpenAI released GPT-5.5, a new class model built specifically for agentic work. It is designed to understand complex multi-step goals, use tools, check its own work, and carry tasks through to completion, and is now powering both ChatGPT and Codex.
Agentic-first design: GPT-5.5 targets messy, multi-part jobs and is tuned to plan, invoke tools, navigate ambiguity, and keep going until the task is done rather than stopping at a single response.
Strongest gains where it matters: The biggest jumps are in agentic coding, computer use, knowledge work, and early scientific research, with ChatGPT using full-stack inference improvements to serve the model faster per token.
GPT-5.5 Pro for hard jobs: A new GPT-5.5 Pro tier is rolling out to Pro, Business, and Enterprise users for demanding tasks, with efficiency gains that make Pro a practical default on long reasoning runs.
Rollout: Available today in ChatGPT and Codex for Plus, Pro, Business, and Enterprise users, with Pro limited to paid and enterprise tiers.