GPT-6 Sol, Sonnet 5.5, Astra Shelved: September's Models, Tested
GPT-6 Sol got cheaper without getting smarter, Sonnet 5.5 got much smarter but not cheaper at full effort, and Astra 6.1 never shipped.
Topic
AI Models & Benchmarks
New AI models and the benchmarks that grade them: what the index measures, what it misses, and what is actually available to use.
Muse Wonder Full Lands Just Behind Opus 5.5
Meta's new flagship scores 56 on an independent index, two points behind Claude Opus 5.5. And the stronger model is not the one you can call today.
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