Introducing Claude Opus 5.5, the first model in our new Claude 5.5 family.
It performs at the level of Claude Fable 5.1 for most tasks, and costs 40% less to run than Opus 5.
Ox Alpha (stealth model) is free for the next week
- 1M Context
- Multi-modal
- Zero Data Retention
Generous rate limits, near unlimited usage
We have capacity for 100T tokens per day, lets see what you can do
Today’s For You release is in the open-source repo.
Notable updates:
• How ranking weights actually work
• A new filter required for Brazil’s 2026 election
All the details: https://t.co/rdPoHOvJbd
@deliprao If we wanted hallucinated larp vulnerabilities we'd read our message requests.
And Z.a͏i should probably share these with the companies instead of requiring that they share read access to their entire GitHub org to view the supposedly severe vulnerabilities in their codebases.