Anthropic released Opus 5.5 today.
The real news is not the performance, but the price. Per million tokens: Input from $5 to $4 Output from $25 to $20 Cache read from 50 cents to 20 cents Write cache from $6.25 to $5 Anthropic's own statement: on typical workloads
Made this in 5 minutes with Claude Opus 5.5
The future is here
I made this in Claude Opus 5.5 Roblox Studio UI Builder Plugin v1.2
You can now make UI for any game within like 5 seconds and get full UI for a roblox game with 1 prompt with the tool I've built. I am still going to be constantly improving it until everyone is fully satifisfied
On an IKEA table assembly task, Fable 5.1 and Opus 5 fail, while Opus 5.5 and GPT-6 Astra both succeed.
Opus 5.5 finishes faster; GPT-6 Astra takes a cleaner, safer trajectory. Check out our full benchmark + datagen pipeline at full paper at
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