# Executive Order (June 2026)

Type: regulation

Source: Startup Intelligence Brief — https://getstartupbrief.com/entity/executive-order-june-2026
Canonical HTML page: https://getstartupbrief.com/entity/executive-order-june-2026

## Timeline

- **2026-06-26**: Access Restricted and Partially Lifted — OpenAI limits GPT-5.6 Sol to administration-approved customers; Anthropic announces government has approved limited release of Mythos 5 to cyber defenders and infrastructure providers.
- **2026-06-12**: Models Banned — In compliance with a government directive restricting foreign national access, Anthropic withdraws Fable 5 and Mythos 5, effectively banning their use.
- **2026-06**: Executive Order Signed — President Trump signs executive order establishing a 30-day national security review framework for advanced AI models prior to public release.
- **2026**: Anthropic Warns of Mythos Capabilities — Anthropic informs authorities that its Mythos model is highly effective at identifying software vulnerabilities exploitable by malicious actors.

## Recent coverage (1 stories)

### Startup AI Models Frozen: OpenAI, Anthropic Restrict Access Under Trump's 30-Day Review
2026-07-06 01:15:29 · Sentiment: Negative · Impact: 7/10 · Sources: 24

The new government review framework for AI models is causing immediate ripple effects for startups, as OpenAI and Anthropic limit access to their latest models, potentially slowing innovation and impacting funding.
Full story: https://getstartupbrief.com/story/startup-ai-models-frozen-trump-review

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