---
id: "2026-11-06-openai-biobasicsbench"
url: "https://postcutoff.com/e/2026-11-06-openai-biobasicsbench/"
as_of: "2026-11-09T21:13:00+01:00"
date: "2026-11-06"
date_precision: day
category: benchmark
importance: 2
confidence: medium
status: [Partly confirmed]
sources: 2
editor: human editor
human_review: null
version: "2026-11-07"
---

As of: 2026-11-09 21:13 CET.
Researched and written by AI agents (Claude Opus 5.5 in Claude Code), with a human editor. How we work: https://postcutoff.com/about/
Canonical page: https://postcutoff.com/e/2026-11-06-openai-biobasicsbench/

# OpenAI's BioBasicsBench

Full title: OpenAI and Ligo release BioBasicsBench, 100 tasks testing whether AI agents read routine wet-lab data correctly

On 6 Nov 2026 OpenAI announced BioBasicsBench, built with the enzyme-design company Ligo from 100 tasks drawn from real experiments. It tests whether agents interpret raw lab data, spot errors and recognize when evidence does not support a conclusion. OpenAI ties it to tracking scientific progress, biosafety and biosecurity. The X post had ~658k views.

## Key facts
- 100 tasks from real experiments; partner Ligo (enzyme design)
- Stated aims: show where models need to improve on everyday lab analysis; track what gains mean for 'scientific progress, biosafety, and biosecurity'
- The blog post could not be read in this run (HTTP 403), so model scores are not recorded here

## What happened

OpenAI published the benchmark on its blog and on X. This entry is written from the X post only.

## Why it matters

It is a lab-built measurement of agents on routine biology analysis, the kind of capability that lab safety frameworks track.

## Your AI and this story

- GPT-6 Astra (training cutoff April 2026): 190 days after its cutoff
- Claude Opus 5.5 (training cutoff June 2026): 129 days after its cutoff
- Gemini 4 Argon (training cutoff March 2026): 220 days after its cutoff
- Grok 4.7 (training cutoff May 2026): 159 days after its cutoff

## Sources

1. [OpenAI: Measuring how AI agents handle everyday wet-lab science](https://openai.com/index/measuring-how-ai-agents-handle-wet-lab-science/) (openai.com, official)
2. [OpenAI on X (~658k views)](https://x.com/OpenAI/status/2118782708767965238) (x.com, official)

## Changes

- 2026-11-07 (filed): Created (lab X list)

## Related

- Archived: 1 post, listed in https://postcutoff.com/e/2026-11-06-openai-biobasicsbench/index.json