# Google unveils an AI co-scientist whose drug ideas for leukemia held up in lab tests

Canonical page: https://technooptimist.io/stories/google-unveils-an-ai-co-scientist-whose-drug-ideas-for-leukemia-held-up-b6db945b
Date: 19 Feb 2025
About: [Google DeepMind](https://technooptimist.io/companies/google-deepmind.md) · [AI co-scientist](https://technooptimist.io/ai/co-scientist.md)
Original source: https://research.google/blog/accelerating-scientific-breakthroughs-with-an-ai-co-scientist/

Google introduced a multi-agent system on Gemini 2.0 that generates, debates and ranks research hypotheses. In early collaborations, its suggestions were tested in real labs: repurposed drugs slowed acute myeloid leukemia cells, and proposed targets showed anti-fibrotic activity in liver organoids.

## Key facts

- Six agents (generation, reflection, ranking, evolution, proximity, meta-review) under a supervisor.
- Ranking uses an Elo tournament; higher-rated ideas correlated with correct answers on hard science questions.
- Independently proposed a bacterial gene-transfer mechanism Imperial College had found but not yet published.
- Access opened to research groups through a Trusted Tester program.

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