Anthropic's Claude Fable 5.2 leads AI benchmarks ahead of IPO

anthropic has released claude fable 5.2 and mythos 5.2, two new flagship ai models built for demanding technical tasks. fable 5.2 leads the artificial analysis intelligence index v5 with 65 points, surpassing gemini 4 carbon's 60 points and fable 5.1's 50 points. the models produce output up to 30 percent faster than their predecessors and are priced at $8 per million input tokens and $40 per million output tokens. anthropic positions these models for technical work and recommends claude opus 5.5 for everyday use. the release occurs just before anthropic's ipo.