Muse Spark 1.3
Muse Spark 1.3 by Meta: League Score, pricing, context window and sourced benchmarks — the full tracked record.
69 Closed $1.25 / $4.25 per 1M 1M context
League positions: #16 overall · #9 Value Division. Score coverage: 40% of components measured. Count tokens & cost for Muse Spark 1.3 · Estimate a workload cost
Agent-ready: this model is tracked with agentic strengths. See the AI Agents section for the products and frameworks that put models like this to work.
Specifications & pricing
| Maker | Meta — lab profile |
| Family | Muse Spark |
| Released | Sep 2, 2026 |
| Status | Current |
| Weights | Closed / proprietary API |
| License | Proprietary |
| Knowledge cutoff | Not published |
| Context window | 1,048,576 tokens |
| Max output | 943,718 tokens |
| Modalities in | text, image, video, pdf |
| Modalities out | text |
| API price (input) | $1.25 per 1M tokens |
| API price (output) | $4.25 per 1M tokens |
| Cached input | $0.15 per 1M |
| Blended (3:1 in:out) | $2.00 per 1M |
| Pricing source | Official pricing page (checked Oct 14, 2026) |
| API access | Meta Model API, OpenRouter |
Benchmark results
| Benchmark | Score | Source | Date | Link |
|---|---|---|---|---|
| LiveBench overall | 74.9 / 100 | LiveBench | Oct 14, 2026 | Source |
How its League Score is built
| Component | Raw | Normalised | Weight | Date | Link |
|---|---|---|---|---|---|
| LiveBench overall | 74.9 | 68.8 | 40% | Oct 14, 2026 | Source |
Normalised 0–100 against the tracked field; missing components redistribute their weight. Full rules on the methodology page.
Closest rivals
- Muse Spark 1.3 vs Claude Haiku 5.5 — full comparison or compare any pair
- Muse Spark 1.3 vs Kimi K2.6 — full comparison or compare any pair
- Muse Spark 1.3 vs Gemini 3.5 Flash-Lite — full comparison or compare any pair
FAQ
How much does Muse Spark 1.3 cost?
Muse Spark 1.3 costs $1.25 per 1M input tokens and $4.25 per 1M output tokens on the first-party API (checked Oct 14, 2026).
What is the context window of Muse Spark 1.3?
Muse Spark 1.3 accepts up to 1,048,576 tokens of context.
Is Muse Spark 1.3 open source?
No — Muse Spark 1.3 is a closed model available through Meta’s API and products.
Data verified Oct 14, 2026. Spotted an error? Every figure above links to its source.