Anthropic just launched Claude Opus 5.5 as the first model in its new Claude 5.5 family.
This is a AI post classified by Jev as Frontier models (a model release), kept by the AI Radar because it carries real work, not commentary.
Anthropic just launched Claude Opus 5.5 as the first model in its new Claude 5.5 family. It delivers Claude Fable 5.1-level performance on most tasks while costing 40% less to run than Opus 5. The great AI pacing era lasted about three business days 😅
Posted by Shay Boloor (451.8k followers) 1 h ago · 162 likes · 22.9k views · view the original post on X. Kept by the AI Radar as Frontier models.
More AI work like this
- use opus 5.5 on medium or high. — @Ananth7e
- is this pacing the frontier — @justalexoki
- Live look from the OpenAI office today: — @uzairansar
- What a task costs on Opus 5.5… — @cxocommunity
- Claude Opus 5.5 takes the pelican for a ride. 🚲 — @YouWareAI
- Opus 5.5 is here! — @AdamHoltererer
- Here's how Anthropic models were being used before today's Opus 5.5 launch. — @PeterJ_Walker
- roughly similar on AI R&D but a beast on agentic coding task, very impressive — @eliebakouch
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