OpenAI · 2026-06-04 · notable
OpenAI Updates GPT-Rosalind With GPT-5.5 Reasoning — New LifeSciBench Tops Internal Evals, Two Codex Life-Sciences Plugins Land, and Novo Nordisk Joins the Trusted-Access Roster
OpenAI rebuilds its life-sciences model on GPT-5.5, adds two Codex plugins for life sciences research and NGS analysis, and rolls in Novo Nordisk as a new trusted-access partner. Still a research preview, eligibility-gated.
OpenAI's life-sciences specialist gets a GPT-5.5 brain, two Codex plugins for bio workflows, and Novo Nordisk on the partner list.
What is it?
GPT-Rosalind is OpenAI's domain-specific reasoning model for life sciences research, launched April 2026. The June 4 update swaps its underlying base to GPT-5.5, layers in stronger drug-discovery and genomics knowledge, and ships new tooling that lets the model touch real research data through Codex rather than just answer questions.
How does it work?
The new build inherits GPT-5.5's agentic coding and tool-use, then adds domain post-training for medicinal chemistry, quantitative biology, and wet-lab troubleshooting. Two new Codex plugins extend it: a Life Sciences Research plugin that connects to public scientific databases, and a Life Sciences NGS Analysis plugin for next-generation sequencing workflows. OpenAI introduces a new internal benchmark suite called LifeSciBench, covering evidence handling, analysis, design and optimization, scientific reasoning, validation and operations, and scientific communication.
Why does it matter?
The original Rosalind was an evidence-synthesis chatbot for trusted-access partners (Amgen, Moderna, Allen Institute, Thermo Fisher). The June update turns it into something closer to a research workbench: it can pull from public databases, run analyses through Codex, and is now being trialled by Novo Nordisk, signalling broader pharma uptake beyond OpenAI's original cohort. Access remains gated to eligible organizations under the trusted-access deployment framework.
Who is it for?
drug-discovery and computational-biology teams at eligible research orgs
Try it
Eligible organizations can request research-preview access via OpenAI's trusted-access program.