Muse Ember 1.0 vs DeepSeek V4.1 Flash
Official Meta and DeepSeek 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 3x cheaper on input and 2.4x 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 $12 on DeepSeek V4.1 Flash.
- Pick Muse Ember 1.0 if you want the lower bill ($4.50 vs $12 for a medium month) or you reuse long prompts (cached input $0.004 vs $0.006).
- Pick DeepSeek V4.1 Flash 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 | DeepSeek V4.1 Flash |
|---|---|---|
| Price per 1M tokens | ||
| Input | $0.10 | $0.30 |
| Cached input | $0.004 | $0.006 |
| Output | $0.50 | $1.20 |
| Blend 3:1 | $0.20 | $0.525 |
| Sample month, medium | $4.50 | $12 |
| Context | ||
| Context window | 1M tokens | 1M tokens |
| Quality (LMArena, out of 100) | ||
| Coding | Not ranked | 38/100 #15 of 53 |
| Chat | Not ranked | 7/100 #20 of 54 |
| Creative writing | Not ranked | 0/100 #25 of 54 |
| Roleplay and characters | Not ranked | 0/100 #26 of 54 |
| Reasoning and math | Not ranked | 35/100 #14 of 52 |
| Vision | Not ranked | 17/100 #16 of 33 |
| Long documents | Not ranked | Not ranked |
| Cheap bulk and agents | Not ranked | 26/100 #19 of 40 |
| Details | ||
| Provider | Meta | DeepSeek |
| API model id | muse-ember-1.0 | deepseek-flash |
| 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. | Peak rate. Off-peak is half price. |
| Sources | ||
| Last checked | 2026-11-14 | 2026-11-14 |
| Official pricing | Meta pricing | DeepSeek 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, DeepSeek V4.1 Flash #15 of 53 (38/100)
- Chat (Text Arena): Muse Ember 1.0 not ranked, DeepSeek V4.1 Flash #20 of 54 (7/100)
- Creative writing (Text Arena creative writing): Muse Ember 1.0 not ranked, DeepSeek V4.1 Flash #25 of 54 (0/100)
- Roleplay and characters (Text Arena multi-turn): Muse Ember 1.0 not ranked, DeepSeek V4.1 Flash #26 of 54 (0/100)
- Reasoning and math (Text Arena math): Muse Ember 1.0 not ranked, DeepSeek V4.1 Flash #14 of 52 (35/100)
- Vision (Vision Arena): Muse Ember 1.0 not ranked, DeepSeek V4.1 Flash #16 of 33 (17/100)
- Long documents (Document Arena): Muse Ember 1.0 not ranked, DeepSeek V4.1 Flash not ranked
- Cheap bulk and agents (Agent Arena): Muse Ember 1.0 not ranked, DeepSeek V4.1 Flash #19 of 40 (26/100)
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. DeepSeek V4.1 Flash lists $0.30 input, $1.20 output, $0.006 cached input per 1M tokens on DeepSeek 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.
- DeepSeek V4.1 Flash: Peak rate. Off-peak is half price.
Sample monthly bill at list price, no caching: Light (2M input + 0.5M output tokens): $0.45 vs $1.20. Medium (20M input + 5M output tokens): $4.50 vs $12. Heavy (200M input + 50M output tokens): $45 vs $120.
FAQ
Is Muse Ember 1.0 cheaper than DeepSeek V4.1 Flash?
Muse Ember 1.0 costs $0.10 input and $0.50 output per 1M tokens; DeepSeek V4.1 Flash costs $0.30 and $1.20. For a medium month (20M input + 5M output tokens) Muse Ember 1.0 is cheaper: $4.50 vs $12.
Which is better for coding, Muse Ember 1.0 or DeepSeek V4.1 Flash?
Code Arena score: Muse Ember 1.0 n/a (not ranked), DeepSeek V4.1 Flash 38/100. We do not guess missing scores.
Which has the bigger context window?
Muse Ember 1.0: 1M tokens. DeepSeek V4.1 Flash: 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 DeepSeek V4.1 Flash cost per month?
Light (2M input + 0.5M output tokens): $0.45 vs $1.20. Medium (20M input + 5M output tokens): $4.50 vs $12. Heavy (200M input + 50M output tokens): $45 vs $120. 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.
Sources
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