Muse Spark 1.3 vs Kimi K3
Muse Spark 1.3 scores higher on the Models at Work leaderboard (72 vs 60 out of 100). Muse Spark 1.3 is about 3.0× cheaper per blended million tokens ($0.78 vs $2.31, one figure an Artificial Analysis estimate). On Artificial Analysis' independent Intelligence Index, Muse Spark 1.3 leads 48 to 44.
| Muse Spark 1.3 · Meta | Kimi K3 · Moonshot | |
|---|---|---|
| Leaderboard rank | #8 | #11 |
| Score (0–100) | 72 | 60 |
| Tier | Workhorse | Open weights |
| Price per 1M tokens | $0.78 blended (estimate) | $2.31 blended (estimate) |
| Context window | Not verified | Not verified |
| Open weights | Not verified | Yes |
| Artificial Analysis Intelligence Index | 48 | 44 |
| Arena text score | 1494 | 1488 |
| DistressBench (Scale) | 84.88 | — |
| Best for | Latency-first products, Customer-facing chat, Meta-ecosystem teams | Self-hosting, Open-licence requirements, Arena-style chat quality |
Choose Muse Spark 1.3 if…
- you need latency-first products
- you need customer-facing chat
- you need meta-ecosystem teams
The fastest thing in the table by a distance, and the one to beat on the stress benchmark nobody else talks about.
Choose Kimi K3 if…
- you need self-hosting
- you need open-licence requirements
- you need arena-style chat quality
The highest-placed open-licence model on Arena, and the one most teams have not tried yet.
Caveats: Price is Artificial Analysis' blended figure, not a vendor list price; context not verified from a primary source.
Questions people ask
Which is better, Muse Spark 1.3 or Kimi K3?
Muse Spark 1.3 scores higher on the Models at Work leaderboard (72 vs 60 out of 100). Muse Spark 1.3 is about 3.0× cheaper per blended million tokens ($0.78 vs $2.31, one figure an Artificial Analysis estimate). On Artificial Analysis' independent Intelligence Index, Muse Spark 1.3 leads 48 to 44.
When should I choose Muse Spark 1.3 over Kimi K3?
Choose Muse Spark 1.3 for latency-first products, customer-facing chat, meta-ecosystem teams. The fastest thing in the table by a distance, and the one to beat on the stress benchmark nobody else talks about.
When should I choose Kimi K3 over Muse Spark 1.3?
Choose Kimi K3 for self-hosting, open-licence requirements, arena-style chat quality. The highest-placed open-licence model on Arena, and the one most teams have not tried yet.
Which is cheaper, Muse Spark 1.3 or Kimi K3?
Meta does not publish a simple list price for Muse Spark 1.3; Artificial Analysis estimates a blended $0.78 per million tokens (three input to one output). Moonshot does not publish a simple list price for Kimi K3; Artificial Analysis estimates a blended $2.31 per million tokens (three input to one output).
Scores come from the Models at Work leaderboard: Score is 0 to 100: 50% independent evals normalised within this table, 20% price-performance, 15% practitioner sentiment from Signals and community threads, 15% operational fit (context, speed, availability, open weights). Models within three points are a tie in practice. Vendor-published figures are labelled as such and never counted as independent. Prices are vendor list prices where published; blended figures assume three input tokens per output token.