Since June 12, we’ve been working closely with the US government to restore access to Claude Mythos 5 and Fable 5. Today, the government notified us that Mythos 5, our strongest cybersecurity model, can be redeployed to a set of US organizations that operate and defend critical infrastructure.
We’re restoring access for these organizations quickly, and we’re continuing to work with the government to expand access to Mythos 5 and make Fable 5 available for general use again.
Opus 5 Leaks: Coming Next Week
- Claude Opus 5 is in the final stages of launch preparations, with next week currently the target.
- Opus 5 is to bring capabilities much closer to Fable 5, while being significantly cheaper to serve.
- Anthropic is not planning to extend Fable 5 in subscriptions beyond July 19.
- A new successor to Fable 5 is reportedly planned for August, aiming to compete with GPT-6.
🚨 Two serious kernel security bugs have been patched.
One could let an attacker escape a virtual machine and take over the host. 😱
We fixed it before our upstream did. Patches are now in production! https://t.co/uskzjvj9HJ
Someone just found a way to use Fable 5 forever on your paid plans, just cloning it on Opus 4.8
Later, it will cost you $10/50 per million tokens on API usage only.
But you can use it forever. Here's how:
1. Extract the operating manual of Fable 5
2. Create an .md file and save it on your device
3. Create a new project "Fable 5 Brain" in Claude
4. Paste the instructions/ .md file straight into it
5. Run a pressure test to verify
(Save and bookmark to keep your wallets save)
Full extraction prompt and practical guide are in the article below: ↓