---
id: "2023-11-01-bletchley-ai-safety-summit"
url: "https://postcutoff.com/e/2023-11-01-bletchley-ai-safety-summit/"
as_of: "2026-11-13T13:49:00+01:00"
date: "2023-11-01"
date_precision: day
category: policy-safety
importance: 4
confidence: high
status: [Confirmed]
sources: 2
editor: human editor
human_review: null
version: "2026-10-04"
---

As of: 2026-11-13 13:49 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/2023-11-01-bletchley-ai-safety-summit/

# Bletchley Park AI Safety Summit and the Bletchley Declaration

The UK hosted the first global AI Safety Summit on 1–2 November 2023; 28 countries plus the EU, including the US and China, signed the Bletchley Declaration on frontier AI risks.

## Key facts
- Held 1–2 November 2023 at Bletchley Park
- Bletchley Declaration signed by 28 countries and the EU
- UK and US announced AI Safety Institutes
- Commissioned the International AI Safety Report led by Yoshua Bengio
- Follow-ups: Seoul (May 2024) and Paris AI Action Summit (February 2025)

## What happened

Governments and frontier labs met to discuss risks from the most capable AI systems and agreed a shared statement.

## Why it matters

First intergovernmental agreement on frontier AI risk, and it created the network of national AI safety institutes.

## Your AI and this story

- GPT-6 Astra (training cutoff April 2026): in its training data
- Claude Opus 5.5 (training cutoff June 2026): in its training data
- Gemini 4 Hydrogen (training cutoff March 2026): in its training data
- Grok 4.7 (training cutoff May 2026): in its training data

## Sources

1. [The Bletchley Declaration (GOV.UK)](https://www.gov.uk/government/publications/ai-safety-summit-2023-the-bletchley-declaration/the-bletchley-declaration-by-countries-attending-the-ai-safety-summit-1-2-november-2023) (gov.uk, official)
2. [Wikipedia: AI Safety Summit](https://en.wikipedia.org/wiki/AI_Safety_Summit) (en.wikipedia.org, discussion)

## Changes

- 2026-09-29 (filed): Created

## Related

- 2025-02-10: [US and UK decline to sign the Paris AI Action Summit declaration](https://postcutoff.com/e/2025-02-10-paris-ai-action-summit/index.md)
- 2024-05-21: [AI Seoul Summit: Frontier AI Safety Commitments](https://postcutoff.com/e/2024-05-21-seoul-ai-summit/index.md)
- 2023-10-30: [US Executive Order 14110 on safe, secure and trustworthy AI](https://postcutoff.com/e/2023-10-30-us-executive-order-14110/index.md)
- People: [Yoshua Bengio](https://postcutoff.com/person/yoshua-bengio/)