Muse Spark 1.1 is a Closed frontier API from Meta AI (United States).
One-line fit: best used for Meta product surfaces, competitive API pricing.
Key specifications
| Provider | Meta AI |
|---|---|
| Model | Muse Spark 1.1 |
| Type | Closed frontier API |
| Context window | Large |
| Pricing (indicative) | API under Sonnet-class (launch positioning) |
| Company category | Frontier Lab |
| Region | United States |
| Official site | https://ai.meta.com |
Benchmarks and public standing
Consumer + coding improving; API preview Jul 2026
Treat scores as directional. SWE-bench, Terminal-Bench, LMSYS Arena, Artificial Analysis, and vendor cards use different harnesses and are not always comparable 1:1. Re-check the latest official model card before decisions.
What this model is good at
Meta product surfaces, competitive API pricing
This aligns with Meta AI’s broader strengths:
- Open-weight ecosystem (Llama)
- Free consumer Meta AI
- Multimodal social products
- Open innovation
Limitations and watch-outs
Dev platform still maturing vs Claude/GPT
- Rate limits, regional availability, and data retention policies vary by plan.
- Agent harness quality (Cursor, Claude Code, Codex, custom tools) can change outcomes more than raw model Elo.
- Open-weight availability (if any) is separate from hosted API quality and safety filters.
Ideal users
- Product engineers shipping features that match: Meta product surfaces, competitive API pricing
- Teams standardizing on the Meta AI ecosystem
- Agent builders who need a Closed frontier API
When to pick something else
- Cheaper volume: compare lower tiers from the same lab or open Chinese/EU alternatives.
- Maximum hard SWE thoughtfulness: compare Claude Fable-class and other coding flagships.
- Giant multimodal corpora / Workspace: compare Gemini-class models.
- Self-host / open weights: Llama, Qwen, DeepSeek, GLM, Mistral open lines.
Parent company
Meta AI – Open-weight Llama lineage plus closed Muse Spark consumer/API push. Massive social distribution.
Related models from Meta AI
- Llama 4 family – Open / hybrid
- Llama 3.1 / 3.2 / 3.3 – Open weights
- Meta AI assistant – Consumer product
Data is curated for AIForumSphere model directory mid-2026 directional figures.
