Muse Spark 1.3
Meta's 2 Sep 2026 flagship and the clearest statement yet that the company has left open frontier releases behind: Muse Spark 1.3 is closed, Meta has published no parameter count, and Llama 5 has slipped to roughly 2027. Taken on its own terms it is a strong model and a genuinely fast one. Artificial Analysis rates it 48 on the v4.3 Intelligence Index — above GPT-5.6 Sol at 47 and behind only the Astra, Fable 5.1 and Opus 5 families — at $1.25/$4.25, which is an eighth of Astra's input price. Output speed is 255.2 tokens/second, fifth of 199 models measured and nearly four times the 68 tok/s median. The offsetting figure is a 27.01s time to first token, so it is fast once it starts but not quick to start; for batch and throughput-bound work that trade is usually worth taking, for interactive work it usually is not. 1M context. Speed and latency figures are from Meta's first-party API.
1M
tokens
66K
tokens
$1.25
per 1M tokens
$4.25
per 1M tokens
255
tokens/sec
Sep 2026
2026-09-02
$2.75
per 1M tokens
35.3
quality per $
Capabilities
Benchmarks
Price vs Quality
Context Window in Context
- ▸ Muse Spark 1.31M
- GPT-4.11M
- Gemini 2.5 Pro1M
- Gemini 2.0 Flash1M
- Llama 4 Maverick1M
- GPT-5.51M
- GPT-5.5 Pro1M
- Claude Opus 4.71M
Non è ancora sul nostro gateway
Swfte Connect non ha una chiave per Muse Spark 1.3, quindi qui non c'è nulla da eseguire. Aggiungi la tua chiave del provider e chiamalo con la stessa API di ogni altro modello di questa directory.
curl https://api.swfte.com/agents/v2/gateway/chat/completions \
-H "Authorization: Bearer $SWFTE_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "meta:muse-spark-1.3",
"messages": [{"role": "user", "content": "Hello"}]
}'About Muse Spark 1.3
Muse Spark 1.3 is a flagship AI model by Meta, released on September 2, 2026. It supports a context window of 1000K tokens and can generate up to 66K output tokens.
At $1.25 per million input tokens and $4.25 per million output tokens, its blended cost of $2.75/1M tokens puts it in the mid-range pricing tier. Its value score of 35.3 reflects the balance of quality and cost.
Using Muse Spark 1.3 with Swfte
Access Muse Spark 1.3 through Swfte Connect, our unified LLM gateway. Connect gives you a single API for 50+ models, with automatic routing, cost optimization, and fallback handling. You can also try Muse Spark 1.3 in our AI Playground before integrating.