Muse Ember vs Muse Spark 1.3
There is no quality verdict yet: the AIGROW small-business benchmark has not run either model. On price, Muse Ember costs less: $0.10 in and $0.50 out per million tokens, against $1.25 in and $4.25 out for Muse Spark 1.3.
AIGROW credit covers Claude Opus 5.5, Claude Fable 5.2, Claude Fable 5.1, GPT-6 Astra, Claude Sonnet 5.5, GPT-6.1 Sol, GPT-6.1 Terra, Grok 4.7 and Gemini 4 Argon. See API credit
$25 a month brings $110 of API credit and cancels any time; $25 once buys $100. US dollars, standard rate, shortest context band. Price only: the benchmark has not run both.
- Muse Ember
- $0.50
- Muse Spark 1.3
- $5.45
- Muse Ember, per M tokens
- $0.10 / $0.50
- Muse Spark 1.3, per M tokens
- $1.25 / $4.25
3,000 tokens in and 400 out each, at list price.
Meta pairs the two in one agent, Spark to plan and Ember for the volume, with Ember at less than a twelfth of the Spark input price. 1,000 support replies cost $5.45 on Muse Spark 1.3 and $0.50 on Muse Ember, so Muse Spark 1.3 costs 10.9 times as much.
What each one costs
The API price per million tokens and the cheapest app plan with each model, from the makers’ own pages. Each name opens that model’s full price page.
- Muse Ember
- On the Meta API, Muse Ember costs $0.10 per million input tokens and $0.50 per million output tokens.
- Muse Spark 1.3
- On the Meta API, Muse Spark 1.3 costs $1.25 per million input tokens and $4.25 per million output tokens.
Side by side
Each maker’s published rate for its standard tier. Cached input is what a repeated prompt prefix costs once the provider has stored it.
| Fact | Muse Ember | Muse Spark 1.3 |
|---|---|---|
| Maker | Meta | Meta |
| Tier | Small and fast | Flagships |
| Input, per M tokens | $0.10 | $1.25 |
| Output, per M tokens | $0.50 | $4.25 |
| Cached input | $0.004 | $0.15 |
| Context window | 1.05M | 1.05M |
| Released | 9 Nov 2026 | Not published |
| Weights | Closed weights | Closed weights |
What a job costs on each
1,000 runs of each job at the two list prices. The gap moves from job to job because the models price input, output and cached context differently.
| Job | Muse Ember | Muse Spark 1.3 | Cheaper |
|---|---|---|---|
| Support reply3,000 in, 400 out. | $0.50 | $5.45 | Muse Ember, 91% less |
| Document summary25,000 in, 1,000 out. | $3.00 | $35.50 | Muse Ember, 92% less |
| Agent task80,000 in (70,000 cached), 3,000 out. | $2.78 | $35.75 | Muse Ember, 92% less |
The token counts are ours, chosen to look like real work; the prices are the makers’. A model with no published cache price bills the agent task’s repeated context at its full input rate.
The small print
What each base rate leaves out, from the makers’ own pages: surcharges, discounts, promotions and cache pricing.
- Muse Ember
- Prices are for requests up to 200K input tokens. A longer request bills $0.30 / $1.50, cached $0.012, on all its tokens. No Contributor tier. Max output 524,288. Release date is the Meta AI research blog post date. Meta’s pricing page
- Muse Spark 1.3
- Standard tier; no long-context premium. A Contributor tier (Meta may train on your data) costs $0.10 / $0.20, cached $0.002. Web search grounding $2.50 per 1,000 queries. Release date not stated on the official pages. Meta’s pricing page
Other comparisons
Every head to head on the list that involves Muse Ember or Muse Spark 1.3.
Compare Muse Ember and Muse Spark 1.3 with 52 other models
The price list sets every model’s input and output price side by side, with what a support reply, a document summary and an agent task cost on each.
Prices checked 12 November 2026