Model Watch · Meta
Muse Spark 1.3
Meta's frontier model ships under Muse now, not Llama. A contributor tier drops the input price to ten cents a million if you qualify.
What is Muse Spark 1.3?
Muse Spark 1.3 is a model from Meta, built in the US. It's out, and you can call it today.
When did Muse Spark 1.3 come out?
Meta released it on 2 September 2026. That date comes from the lab's own docs.
What does it cost, and how much context does it hold?
| Lab | Meta |
|---|---|
| Built in | US |
| Status | released |
| API model id | muse-spark-1.3 |
| Released | 2 September 2026 |
| Context window | 1,048,576 tokens |
| Max output | Not published |
| Input, per 1M tokens | $1.25 |
| Output, per 1M tokens | $4.25 |
List prices per million tokens, read off the lab's own docs. Caching, batching and volume deals all cut the real number, so treat this as the ceiling. Check the source before you budget against it.
At 700 words in and 500 out, twenty times a day, that works out around $2.40 a month. Put your own numbers in, see every Meta price, or put it next to another model.
How does it compare to Meta's other models?
| Model | Status | Date | Context | In / 1M | Out / 1M |
|---|---|---|---|---|---|
| Muse Spark 1.3 | released | 2 September 2026 | 1,048,576 tokens | $1.25 | $4.25 |
| Muse Glimmer | released | 10 August 2026 | 131,072 tokens | — | — |
| Muse Spark 1.1 | released | 9 July 2026 | 1,048,576 tokens | $1.25 | $4.25 |
| Muse Video | announced | — | — | — | — |
| Muse Spark 1.2 | released | — | 1,048,576 tokens | $1.25 | $4.25 |
| Llama 5 | rumoured | — | — | — | — |
| Llama 4 Scout | released | — | — | — | — |
A dash means the lab hasn't published that number for that model.
What are people discussing about Muse Spark 1.3?
We tracked 2 public discussions naming Muse Spark 1.3 across r/ClaudeAI and r/singularity on 2 September 2026.
The subject that came up most was availability and outages and what it costs. A discussion can cover several, so these add up to more than 2.
| What people are discussing | Threads |
|---|---|
| availability and outages | 1 |
| what it costs | 1 |
Every mention we've logged
Every tracked post, release, changelog entry or incident whose title or summary names Muse Spark 1.3. Newest first, each one linking to where the lab published it.
Nothing yet. The name hasn't appeared in a tracked source.
Muse Spark 1.3 is part of the Muse Spark 1 family, which is where the point releases sit next to each other.
Keep reading
The release timeline is every model we know about, filterable by lab, country and date. The tracker is the live feed these mentions come from, and Model Watch is the whole catalogue on one page.
More from Meta:
- Muse Glimmer · released
- Muse Spark 1.1 · released
- Muse Video · announced
- Muse Spark 1.2 · released
- Llama 5 · rumoured
- Llama 4 Scout · released
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