# Open AI models: safety versus access

> Anthropic warns that freely available AI models pose cyberattack risks, reigniting debate over whether powerful technology should stay locked behind lab doors.
- Title: Open AI models: safety versus access · MIT Technology Review
- Summary: Anthropic warns that freely available AI models pose cyberattack risks, reigniting debate over whether powerful technology should stay locked behind lab…
- Keywords: anthropic, z.ai, open ai models, ai safety, cyberattack risk, fervo energy, geothermal power, google, enhanced geothermal, technology, science, Open
- Source: MIT Technology Review — https://technologyreview.com/2026/10/13/1146382/the-download-open-models-trade-offs-geothermal-power
- Read time: 1 min
- Topics: anthropic, z.ai, open ai models, ai safety, cyberattack risk, fervo energy, geothermal power, google, enhanced geothermal, technology, science
## Anthropic warns on open AI model
Anthropic released a report arguing that a powerful new model released by Chinese company Z.ai poses a major cyberattack risk because it is freely available for anyone to download and modify.
## The open versus closed AI debate
The warning is the latest flashpoint in a debate over whether frontier AI models should be open or kept behind the doors of frontier labs.
## Safety advocates worry about misuse
Safety advocates warn that open models can be misused by bad actors, while supporters argue they could prevent a handful of companies from controlling this powerful technology.
## Fervo Energy expands geothermal reach
Fervo Energy wants to expand geothermal power beyond the handful of places where it has traditionally been practical using horizontal drilling and hydraulic fracturing.
## Fervo bets on AI power boom
Fervo is betting that AI's power boom will help scale up enhanced geothermal energy with a two point two billion dollar public offering and an expanded agreement with Google.
## Fervo plans larger plants
With its expanded Google agreement and public offering, Fervo plans to build larger plants and drive down costs for enhanced geothermal energy.
## Geothermal viability question remains
Fervo's approach has worked in Utah and Nevada, but the key question is whether it can work beyond those states to truly expand geothermal power.
## World's first utility-scale plant online
Fervo Energy's Utah facility is now the world's first utility-scale enhanced geothermal plant online, supplying carbon-free electricity.
## Key takeaway

Anthropic released a report warning that an open AI model from Chinese company Z.ai poses major cyberattack risks, intensifying the debate over whether frontier AI should be freely available or restricted to labs.