Claude Opus 5.5 tops the AI intelligence index with a 20% price cut
As seen on the 24/7 Wall St. homepage on September 22, 2026.
Taking the benchmark crown and cutting prices 20% at the same time tells you frontier AI pricing power is eroding fast, which squeezes every model vendor's margin math and cheapens inference for the cloud and software names buying it.
Claude Opus 5.5 takes the top spot on the Artificial Analysis Intelligence Index, along with a 20% price cut and larger cache hit discount Claude Opus 5.5 brings Anthropic to parity with GPT-6 Astra on evaluations like Terminal-Bench 4.0 and AutomationBench-AA, while extending https://t.co/Hgir4ao3pc
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Claude Opus 5.5 has claimed the top position on the Artificial Analysis Intelligence Index, a widely tracked benchmark that aggregates model performance across a range of evaluations. The simultaneous 20% price reduction and an expanded cache hit discount make this a notable two-front move.
On evaluations like Terminal-Bench 4.0 and AutomationBench-AA, Anthropic's new model reaches parity with GPT-6 Astra, erasing what had been a visible gap at the frontier. Matching the competition on those specific benchmarks while also cutting price puts pressure on every other model vendor to respond on both dimensions at once.
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The combination of a benchmark lead and a price cut in the same release is the clearest signal yet that raw performance no longer commands a premium at the frontier. When the top-ranked model is also cheaper, the pricing power that frontier AI labs once enjoyed erodes, and the margin math for every vendor selling inference gets harder to defend.
For cloud platforms and software companies that buy inference at scale, cheaper frontier-grade output is a direct input cost reduction. The enlarged cache hit discount compounds that effect for workloads that reuse context heavily, which covers a wide swath of enterprise applications.