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Muse Spark 1.3 vs DeepSeek V4.1 Flash
Muse Spark 1.3 scores higher than DeepSeek V4.1 Flash on all 6 public leaderboards that rate both. On the ArtificialWatch Index, which takes the median of each model's percentile across the boards that score it, Muse Spark 1.3 is at 81.4 and DeepSeek V4.1 Flash at 49.2 (out of 100).
Scores as published by each board; table composed September 28, 2026.
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Leaderboard by leaderboard
| Board | Muse Spark 1.3 | DeepSeek V4.1 Flash | Higher |
|---|---|---|---|
| LMArena Elo (community votes) | 1,655.5 | 1,620.7 | Muse Spark 1.3 |
| LiveBench global average (0-100) | 81.6 | 81.1 | Muse Spark 1.3 |
| SimpleBench AVG@5 % (private set) | 81.8 | 66.7 | Muse Spark 1.3 |
| LLM Stats LLM Stats Score · composite (0-100), their rendered top 15 | 53.8 | 51.4 | Muse Spark 1.3 |
| Vals AI Vals Index accuracy % · weighted finance + coding tasks | 64.5 | 57.9 | Muse Spark 1.3 |
| Artificial Analysis intelligence index · measured runs only | 48.1 | 39.5 | Muse Spark 1.3 |
Raw scores are each board's own scale, so compare within a row, not across rows. Full table: the bench index.
For coding
On the ArtificialWatch coding index, Muse Spark 1.3 is at 83.3 (#6 of 31) and DeepSeek V4.1 Flash at 72.4 (#8). Muse Spark 1.3 scores higher on 2 of the 3 coding boards that rate both and DeepSeek V4.1 Flash on 1.
| Coding board | Muse Spark 1.3 | DeepSeek V4.1 Flash |
|---|---|---|
| LMArena · Coding | 1,538.7 | 1,532.2 |
| LiveBench · Coding | 72.6 | 78.7 |
| Vals Vibe Code Bench | 85.9 | 84.7 |
Muse Spark 1.3 at a glance
- Developer
- Meta
- Status
- Live since September 2, 2026
- API price
- $1.25 input / $4.25 output per 1M tokens · Meta, muse-spark-1.3
- Context window
- 1.05M tokens
Live — Sep 2 · $1.25/$4.25 per 1M and 1M ctx, identical to 1.2 · Meta: ~20% fewer tool calls, ~25% fewer tokens vs 1.2 · open weights on the roadmap, undated.
Muse Spark 1.3 is out — same price as 1.2, and the radar called it in 61 seconds
2026-09-03 · Meta released Muse Spark 1.3 today. Its own words: "We're excited to release Muse Spark 1.3, which delivers improved performance across agentic and coding tasks." The numbers Meta gives are efficiency, not capability: ~20% fewer tool calls and ~25% fewer tokens than 1.2 on coding work, fewer interaction turns, less…
DeepSeek V4.1 Flash at a glance
- Developer
- DeepSeek
- Status
- Live since September 10, 2026
Live — Sep 10 · 1M ctx · $0.15/$0.60 per 1M as our sweep read it · DeepSeek serves it under the unversioned id deepseek-flash, so the id itself never carries the version.
Muse Spark 1.3 vs DeepSeek V4.1 Flash: quick answers
Which is better, Muse Spark 1.3 or DeepSeek V4.1 Flash?
It depends on what you measure. Muse Spark 1.3 scores higher than DeepSeek V4.1 Flash on all 6 public leaderboards that rate both. Muse Spark 1.3's widest lead is on SimpleBench. On the ArtificialWatch Index, which takes the median of each model's percentile across the boards that score it, Muse Spark 1.3 is at 81.4 and DeepSeek V4.1 Flash at 49.2 (out of 100).
Which is newer, Muse Spark 1.3 or DeepSeek V4.1 Flash?
DeepSeek V4.1 Flash. It went live on September 10, 2026, 8 days after Muse Spark 1.3 (September 2, 2026).
How do Muse Spark 1.3 and DeepSeek V4.1 Flash compare for coding?
On the ArtificialWatch coding index, Muse Spark 1.3 is at 83.3 (#6 of 31) and DeepSeek V4.1 Flash at 72.4 (#8). Muse Spark 1.3 scores higher on 2 of the 3 coding boards that rate both and DeepSeek V4.1 Flash on 1.
Who makes Muse Spark 1.3 and DeepSeek V4.1 Flash?
Muse Spark 1.3 is from Meta; DeepSeek V4.1 Flash is from DeepSeek.
Where do these numbers come from?
Each score is the leaderboard's own published figure, read by ArtificialWatch (table composed September 28, 2026). Boards measure different things, so raw scores are only comparable within a row.
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