Muse Ember 1.0 vs Muse Spark 1.3
Official Meta API prices and LMArena scores, checked 2026-11-14. Add up to 2 more models to compare 4.
Muse Ember 1.0 costs less; quality is n/a.
Muse Ember 1.0 is 13x cheaper on input and 8.5x cheaper on output. LMArena has no task both models are ranked on, so quality is n/a here. A medium month (20M input + 5M output tokens) costs $4.50 on Muse Ember 1.0 and $46.25 on Muse Spark 1.3.
- Pick Muse Ember 1.0 if you want the lower bill ($4.50 vs $46.25 for a medium month) or you reuse long prompts (cached input $0.004 vs $0.15).
- Pick Muse Spark 1.3 if nothing here clearly favors it (no lower bill, bigger context, cheaper cache or LMArena lead of 3+ points over Muse Ember 1.0).
Medium: 20M input + 5M output tokens a month at list price (short-context rate, no caching or batch discounts).
Marked side is better: lower for prices, higher for context and scores. Bars are scaled to the larger of the two.
| Spec | Muse Ember 1.0 | Muse Spark 1.3 |
|---|---|---|
| Price per 1M tokens | ||
| Input | $0.10 | $1.25 |
| Cached input | $0.004 | $0.15 |
| Output | $0.50 | $4.25 |
| Blend 3:1 | $0.20 | $2 |
| Sample month, medium | $4.50 | $46.25 |
| Context | ||
| Context window | 1M tokens | 1M tokens |
| Quality (LMArena, out of 100) | ||
| Coding | Not ranked | 35/100 #17 of 53 |
| Chat | Not ranked | 46/100 #7 of 54 |
| Creative writing | Not ranked | 28/100 #12 of 54 |
| Roleplay and characters | Not ranked | 19/100 #9 of 54 |
| Reasoning and math | Not ranked | 52/100 #6 of 52 |
| Vision | Not ranked | 83/100 #5 of 33 |
| Long documents | Not ranked | 74/100 #6 of 12 |
| Cheap bulk and agents | Not ranked | 27/100 #18 of 40 |
| Details | ||
| Provider | Meta | Meta |
| API model id | muse-ember-1.0 | muse-spark-1.3 |
| Notes | Released Nov 9, 2026. Prompts up to 200K tokens. Longer prompts cost $0.30 in, $1.50 out (the whole request bills at the higher rate). Standard mode only. 512K max output. | Contributor mode (trains on your data): $0.10 in, $0.20 out. |
| Sources | ||
| Last checked | 2026-11-14 | 2026-11-14 |
| Official pricing | Meta pricing | Meta pricing |
Plans from data checked hourly against each vendor's official pricing page. Vendors state limits in different units, so we quote them as published. Team and enterprise plans are per seat.
API prices in USD per 1M tokens from each provider's official pricing page. Blend 3:1 = (3 x input + output) / 4. Sample month = stated input and output tokens at the list price, no caching. Quality: relative score out of 100 on each LMArena leaderboard (100 = top model we price on that board, n/a = not ranked there), data licensed CC BY 4.0. See how we pick.
Where each one ranks on LMArena
Relative score out of 100 on each leaderboard (100 = the top model we price there), with the rank among the models from our API price table that appear on that board.
- Coding (Code Arena): Muse Ember 1.0 not ranked, Muse Spark 1.3 #17 of 53 (35/100)
- Chat (Text Arena): Muse Ember 1.0 not ranked, Muse Spark 1.3 #7 of 54 (46/100)
- Creative writing (Text Arena creative writing): Muse Ember 1.0 not ranked, Muse Spark 1.3 #12 of 54 (28/100)
- Roleplay and characters (Text Arena multi-turn): Muse Ember 1.0 not ranked, Muse Spark 1.3 #9 of 54 (19/100)
- Reasoning and math (Text Arena math): Muse Ember 1.0 not ranked, Muse Spark 1.3 #6 of 52 (52/100)
- Vision (Vision Arena): Muse Ember 1.0 not ranked, Muse Spark 1.3 #5 of 33 (83/100)
- Long documents (Document Arena): Muse Ember 1.0 not ranked, Muse Spark 1.3 #6 of 12 (74/100)
- Cheap bulk and agents (Agent Arena): Muse Ember 1.0 not ranked, Muse Spark 1.3 #18 of 40 (27/100)
Pricing details from the official pages
Muse Ember 1.0 lists $0.10 input, $0.50 output, $0.004 cached input per 1M tokens on Meta pricing. Muse Spark 1.3 lists $1.25 input, $4.25 output, $0.15 cached input per 1M tokens on Meta pricing. Prices checked 2026-11-14.
- Muse Ember 1.0: Released Nov 9, 2026. Prompts up to 200K tokens. Longer prompts cost $0.30 in, $1.50 out (the whole request bills at the higher rate). Standard mode only. 512K max output.
- Muse Spark 1.3: Contributor mode (trains on your data): $0.10 in, $0.20 out.
Sample monthly bill at list price, no caching: Light (2M input + 0.5M output tokens): $0.45 vs $4.62. Medium (20M input + 5M output tokens): $4.50 vs $46.25. Heavy (200M input + 50M output tokens): $45 vs $462.50.
FAQ
Is Muse Ember 1.0 cheaper than Muse Spark 1.3?
Muse Ember 1.0 costs $0.10 input and $0.50 output per 1M tokens; Muse Spark 1.3 costs $1.25 and $4.25. For a medium month (20M input + 5M output tokens) Muse Ember 1.0 is cheaper: $4.50 vs $46.25.
Which is better for coding, Muse Ember 1.0 or Muse Spark 1.3?
Code Arena score: Muse Ember 1.0 n/a (not ranked), Muse Spark 1.3 35/100. We do not guess missing scores.
Which has the bigger context window?
Muse Ember 1.0: 1M tokens. Muse Spark 1.3: 1M tokens. Both list the same window. Long prompts can cost more; see the pricing notes above.
How much do Muse Ember 1.0 and Muse Spark 1.3 cost per month?
Light (2M input + 0.5M output tokens): $0.45 vs $4.62. Medium (20M input + 5M output tokens): $4.50 vs $46.25. Heavy (200M input + 50M output tokens): $45 vs $462.50. Pick your own token counts in the plan vs API calculator.
Where do these numbers come from?
Prices come from each provider's official pricing page, checked daily. Quality is the relative score on the LMArena leaderboard dataset, licensed CC BY 4.0. Where a model is not ranked we show n/a.