Muse Spark 1.3 — API Pricing & Benchmarks
Muse Spark 1.3 is Meta's flagship reasoning model, released in 2026-09. The API costs $1.25 per 1M input tokens and $4.25 per 1M output tokens ($2.00 blended at a 3:1 ratio), with cached input at $0.15. It supports a 1.0M-token context window. On the independently measured Artificial Analysis Intelligence Index it scores 60.8, ranking #7 of 68 models tracked on this site, with a median output speed of 115 tokens/sec.
Explore provider routes and additional benchmark sources for Muse Spark 1.3
| Provider | Meta |
| Input price / 1M tokens | $1.25 |
| Output price / 1M tokens | $4.25 |
| Cached input / 1M tokens | $0.15 |
| Blended price (3:1) | $2.00 |
| Context window | 1.0M |
| Max output tokens | — |
| Knowledge cutoff | — |
| License | proprietary |
| Input modalities | T+I+V |
| Output speed (tok/s) | 115 |
| Released | 2026-09 |
| Artificial Analysis Intelligence Index | 60.8 |
| GPQA Diamond | 94.1% |
| Humanity's Last Exam | 47.5% |
Where Muse Spark 1.3 fits
On a blended 3:1 basis Muse Spark 1.3 costs $2.00 per 1M tokens, cheaper than 43% of the 80 priced models in this index. As Meta's flagship it is aimed at the hardest workloads — complex reasoning, agentic coding and multi-step tool use — where output quality dominates cost. Cached input is priced at $0.15 (88% below standard input), which rewards prompt structures with long stable prefixes — see our caching guide.
Price history
| Period | Input $/1M | Output $/1M | Cached $/1M |
|---|---|---|---|
| 2026-09-02 → current | $1.25 | $4.25 | $0.15 |
No list-price changes recorded since tracking began. Full dataset: price-history.json (CC BY 4.0).
Alternatives at a similar price
- Claude Haiku 4.5 (Anthropic) — $2.00/1M blended
- Muse Spark 1.2 (Meta) — $2.00/1M blended, AA Index 56.8
- Muse Spark 1.1 (Meta) — $2.00/1M blended, AA Index 53.2
- DeepSeek V4 Pro (DeepSeek) — $1.98/1M blended, AA Index 53.2
Compare Muse Spark 1.3
About Meta
Meta's Muse Spark models succeed the Llama line as its production API offering, posting strong arena Elo and Intelligence Index scores at aggressive mid-tier prices.