Multi-Agent Systems

55 summarised stories about Multi-Agent Systems, each linking back to the original source. Browse all topics →

Thursday, 9 July 2026

The new GPT-5.6 family: Luna, Terra, Sol

Simon Willison 6 days ago

OpenAI released three new GPT-5.6 models—Luna, Terra, and Sol—with input/output token prices of $1/$6, $2.50/$15, and $5/$30 respectively. On Agents' Last Exam benchmark measuring long-running professional workflows across 55 fields, GPT-5.6 Sol scored 53.6 compared to Claude Fable 5's 40.5, while Luna and Terra matched Fable 5's performance at one-sixteenth the cost. The models include new API features for programmatic tool composition, multi-agent spawning, and explicit prompt cache breakpoints, expanding capabilities for agentic workflows.

Benchmarking Multi-Agent Systems OpenAI

Introducing Muse Spark 1.1

Simon Willison 1 week ago

Meta released Muse Spark 1.1, an updated version of its Spark language model that now includes API access for the first time. The model demonstrates improvements in agentic tool calling and computer use capabilities according to Meta's evaluation report. Developers can now access the model through a new LLM plugin that provides both command-line and Python library interfaces.

Developer Tools Meta Multi-Agent Systems

ChatGPT is now a partner for your most ambitious work

OpenAI Blog 1 week ago

ChatGPT Work is an agent designed to execute tasks across multiple applications and files while maintaining focus on a single project for extended periods. The agent can operate for hours on sustained projects without losing context or requiring manual intervention between steps. Users can now delegate complex, multi-step work to ChatGPT rather than managing each application switch and file operation manually.

Developer Tools Enterprise Infrastructure Multi-Agent Systems OpenAI