signalThe Rundown AI2026-09-24
The pacing era's first launch day
Anthropic released Claude Opus 5.5, which tops the AA Intelligence Index at 58, beating previous leaders and priced 40% lower, while OpenAI shipped GPT-6 Sol and Luna at half the price of their predecessors. The rival launches came 90 minutes apart, marking the first launch day of the pacing era.
- for who
- AI enthusiasts, developers, and industry watchers
- why now
- Anthropic and OpenAI's 90-minute-apart launches with 50% price cuts signal intense competition.
- what changes
- Frontier AI capabilities are now available at significantly lower prices, forcing buyers to reassess model choices.
key points
- Claude Opus 5.5 leads AA Intelligence Index at 58, beating Fable 5.1 and GPT-6 Astra, at 40% lower price
- OpenAI's GPT-6 Sol and Luna cut prices by half, at $0.10/$0.50 and $2/$10 per million tokens
- Anthropic and OpenAI shipped model updates just 90 minutes apart in the pacing era
#model releases#pricing comparison#Anthropic#OpenAI3 sources · confidence medium
score
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