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Better prompt caching for GPT-6

Learn how GPT-6 improves prompt caching with higher cache hit rates, new diagnostics, explicit breakpoints, and controls that reduce latency and costs.

We haven't written up this one. OpenAI News has the full story — the link below goes straight to it.

Also reported by 1 other outlet

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OpenAI's GPT-5.6 Moves Point to a Broader API Price-Performance Strategy

OpenAI's latest GPT-5.6 changes offer concrete evidence of a strategy that matters to anyone building with AI APIs: improving the balance between model capability, speed, and cost rather than treating…

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Amazon Blocks Meta’s Muse AI Assistant

Todd Bishop, reporting at GeekWire: Amazon says it has cut off Meta’s new Muse personal AI agent from shopping on Amazon.com on behalf of customers, after attempting unsuccessfully to get the Facebook…

  • Amazon blocked Meta's Muse AI assistant from accessing Amazon.com.
  • Muse never agreed to any terms or conditions for the experience.
  • Customers faced a warning about unauthorized AI agent access.

Anthropic Cuts AI Processing Costs 40% With Opus 5.5 Debut

Anthropic said its new Claude Opus 5.5 represents a “major step up” from Opus 5 and costs 40% less to run than Opus 5 on typical workloads. “It’s the new leading model, and early testers saw large jumps in performance on their most complex work,” Anthropic said in a Tuesday (Sept. 22) announcement.

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