[AINews] Meta Muse Wonder & Wonder Full: MSL’s Claude 5.5-tier Frontier Model

We have been coveringe MSL’s 14 month journey to becoming a frontier lab, but only today did the final ball drop: Meta’s Muse Wonder to match Spark and Glimmer, the way that OpenAI has Sol/Terra/Luna and Anthropic has Opus/Sonnet/Haiku. Interestingly, while Muse doesn’t claim a specific size, Muse Wonder Full does beat Fable and Astra on some benchmarks, and with various degrees of posttraining it is a little unclear if Wonder is more of a Fable/Astra class model or not. Meta has released Muse Wonder and Muse Wonder Full, achieving Artificial Analysis Intelligence Index v4.3 scores of 52 and 56 at max reasoning effort - each a material gain over Muse Spark 1.3 (max) at 48, with a release gap of only 6 weeks Muse Wonder is available for users on … 141 Replies · 287 Reposts · 2.5K Likes We have included a full breakdown of launch details below. AI News for 10/10/2026-10/12/2026. We checked 12 subreddits, 544 Twitters and no further Discords. AINews’ website lets you search all past issues. As a reminder, AINews is now a section of Latent Space. You can opt in/out of email frequencies! AI News for 10/10/2026-10/12/2026. We checked 12 subreddits, 544 Twitters…