References 682% CONFIDENCEOverall confidence: 82%How well the pin's source and references back up its dates.Weighted average of how firmly 6 references, the source included, support the pin's start and end times; a reference counts half as much for every 180 days older than the newestShow all pins at 75% confidence or better
The first entry is always the pin's source. Overall confidence is a weighted average of how firmly each reference supports the start and end times used above; a reference counts half as much for every 180 days older than the newest.
- [1]90%research.meta.ai/blog/introducing-muse-code-and-muse-spark-1-2research.meta.ai· Posted Oct 12, 2026· Starts Aug 5, 2026 ✓· 20% of score
Meta[5] AI Research's post 'Introducing Muse Code and Muse Spark 1.2' is dated August 5, 2026 and says the model 'is available today in Muse Code and in Meta Model API'; Artificial Analysis[4] and OpenRouter[6] carry the same day.
- [2]70%Muse Spark - Wikipediaen.wikipedia.org· Added Oct 12, 2026· 20% of score
Notes Muse Code was released alongside Muse Spark 1.2 on 5 August 2026 (Reuters), that the contributor tier lets Meta[1][5] retain submitted data (Business Insider), and that Zuckerberg said Muse Spark 1.2 would be released as open weights while the smaller open-weight Muse Glimmer shipped on 10 August (CNBC).
- [3]75%Meta Releases Muse Spark 1.2, Jumps To Score Of 54 On Artificial Analysis Intelligence Index - OfficeChaiofficechai.com· Published Aug 6, 2026· 15% of score
Trade summary: Meta's[1][5] third model launch in four months, 54 puts it in a tie for third place among US labs behind Claude Opus 5, Claude Fable 5, GPT-5.6 Sol and Kimi K3, cached input $0.15 per 1 million, first-party API at launch, 1M context unchanged.
- [4]85%Muse Spark 1.2: Benchmarks and analysis - Artificial Analysisartificialanalysis.ai· Published Aug 5, 2026· 15% of score
Independent benchmarks: 54 on the Intelligence Index, up from 51 for 1.1 and 43 for 1.0, tied with GPT-5.5 (xhigh) and Grok 4.5 (high); GDPval-AA v2 up 260 Elo to 1,631 (fifth); Terminal-Bench v2.1 78% to 80%; hallucination rate 38% to 28%; $0.40 per index task against $0.29; price unchanged at $1.25 and $4.25.[1]
- [5]90%Meet Muse Spark 1.2 and Muse Code - Meta for Developersdev.meta.ai· Published Aug 5, 2026· 15% of score
Meta's[1] developer post: model ids muse-spark-1.2 and muse-spark-1.2-contributor, $0.15 cached input, $1.25 input and $4.25 output per 1 million tokens with thinking tokens billed as output, a 1M-token window, availability in Muse Code, the Meta Model API and OpenRouter[6], and a contributor tier rate-limited in a rolling 5-hour window in select countries.
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