We’re updating Claude Fable 5’s biology safeguards to reduce false positives. In our testing, this update reduced biology-related fallbacks by about 85% across our product surfaces.
Fable can now assist on a wider range of everyday health and educational questions.
We believe
Open Science v0.11.1 is here. 🎉
github.com/aipoch/open-sc…
This release strengthens reproducibility and workflow control.
New:
• Generate scripts from artifact provenance
• Live permission changes during execution
• Archive & restore Projects/Sessions
• MCP OAuth + portable connectors
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Scientific AI should not only create results.
It should preserve how those results were created.
#AIforScience#OpenScience#OpenSource
We’re working with the American Psychological Association to bring psychological science and clinical expertise into our work on AI and youth mental health.
Together with the @APA, we’ll develop evidence-based guidance, resources, and safeguards to help ensure AI supports young people’s well-being and healthy development.
openai.com/index/openai-a…
Hey AI builders & researchers and @X algorithm👋
Looking to connect with people building in:
🤖 AI & Agents
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Important progress from Anthropic: Claude Fable 5’s biology safeguards have been refined, cutting false positives by ~85%. This meaningfully expands support for everyday health questions and educational use cases—areas where AI can already deliver real value.
At the same time, dual-use restrictions (virology, toxicology, molecular design) remain in place, so the model is still not suitable for professional biology research or drug development. The stated commitment to developing trusted access pathways for frontier capabilities is therefore the more consequential part of this announcement.
For the biology and AI research community, the core challenge continues to be finding the right equilibrium: enabling capable models to accelerate discovery while maintaining rigorous safeguards against misuse. Closing that gap responsibly will determine how quickly AI can contribute at the frontier of medicine and the life sciences.
We’re updating Claude Fable 5’s biology safeguards to reduce false positives. In our testing, this update reduced biology-related fallbacks by about 85% across our product surfaces.
Fable can now assist on a wider range of everyday health and educational questions.
We believe
@claudeai 85% fewer biology false positives? Progress!
Now Claude can finally talk about everyday health without instantly panicking.
Still nopes out of anything actually interesting in biology though.
Baby steps, Anthropic… baby steps 😂
We’re updating Claude Fable 5’s biology safeguards to reduce false positives. In our testing, this update reduced biology-related fallbacks by about 85% across our product surfaces.
Fable can now assist on a wider range of everyday health and educational questions.
We believe the biggest positive impacts of AI will be in biology and medicine, and we’re committed to putting frontier intelligence safely into the hands of as many researchers as possible. Fable will continue to fallback to Opus 5 for requests we consider dual-use—including virology, toxicology, and molecular design—so it isn't yet usable for professional biology research and drug development.
We're committed to closing that gap through trusted access pathways for frontier biology capabilities.
anthropic.com/news/improving…
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