Observed Signal · Sep 3, 2024 · Technical Release · Source: Trending Topics · Impact: 4/5 · Sentiment: Positive
Meta Launches Muse Spark 1.3, Ranking Behind Only Anthropic
Meta has rolled out Muse Spark 1.3, announced by CEO Mark Zuckerberg on X as the company's biggest leap in coding and agent-based work. The fourth Muse Spark release in five months is available through Muse Code and Meta's API. According to Artificial Analysis, the public xhigh configuration scores 61 points on the Intelligence Index, matching GPT-5.6 Sol (max), Grok 4.6 (high) and Claude Opus 5 (high); a limited max preview scores 62. Only Anthropic's Claude Fable 5.1 (max) and Claude Opus 5 (max) rank higher. Pricing remains at $1.25 per million input tokens and $4.25 per million output tokens. Meta confirmed open-weights release for Muse Spark 1.2 but has not yet decided on 1.3. The next flagship model, code-named Watermelon, is expected in autumn.
Meta, a major platform, shipped a competitive LLM release that narrows the gap to Anthropic and undercuts peers on price; open-weights decisions could shape AI tooling used across marketing and ad tech.
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Key Takeaways & Evidence Grounding
- Meta announced and rolled out Muse Spark 1.3, the fourth release in five months.
- The public Muse Spark 1.3 (xhigh) scores 61 points on the Artificial Analysis Intelligence Index; the max preview scores 62.
- Only Anthropic's Claude Fable 5.1 (max) with 66 and Claude Opus 5 (max) with 63 rank higher among tested models.
- Pricing is unchanged at $1.25 per million input tokens and $4.25 per million output tokens, with a one-million-token context window.
- Meta confirmed open weights for Muse Spark 1.2 but has not decided whether to release Muse Spark 1.3 weights.
Connected Companies & Entities
10 Entities mapped“Mark Zuckerberg announced the rollout of Muse Spark 1.3 on X; the model is available via Muse Code and Meta's API....”
“Only Anthropic ranks ahead, with Claude Fable 5.1 (max) and Claude Opus 5 (max)....”
“Google's best-ranked model in the index is Gemini 3.8 Flash (high) with 59 points....”
“OpenAI and xAI do not surpass Muse Spark 1.3 in their strongest listed configurations....”
“Kimi K3 (max) from Moonshot AI leads the open-weights ranking with 60 points....”
“Z.ai's GLM-5.3 (max) also scores 60 points in the open-weights ranking....”
“Z.ai's GLM-5.3 (max) also scores 60 points in the open-weights ranking....”
“Alibaba's Qwen3.8 scores 58 points in the open-weights ranking....”
“According to reports by The Information, the Watermelon model is expected to appear in autumn....”
Ontology Mapping & Concepts
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