Chroma

Trends

• Open-weight models diversify in architecture, modality, and size

Items

1. Jun 8

   Harness-1 open search agent beats GPT-5.4

   A 20B open-source search agent from UIUC, UC Berkeley, and Chroma, built on gpt-oss-20B, redesigns complex retrieval to reach 73% average recall versus GPT-5.4's 70.9%, with weights and environment released under Apache 2.0.