Muse Spark 1.3
Meta
Meta's newest Spark generation — strong, fast, still fresh.
Ranked #8 of 402 on LMArena’s overall board (style control) · retrieved 2026-09-19
The numbers
Arena Score (LMArena, style control)1493.1 (1484.3–1502, 4,723 votes)
Coding board score1536.7 (#8, 1,346 votes)
Intelligence Index (Artificial Analysis)48.2
Median output speed~223 tokens/sec
Price per 1M tokens in/out (Artificial Analysis)$1.25 / $4.25
Context window~1M
LicenseProprietary
Released2026-09-02
Exact source entries: LMArena “muse-spark-1.3-max” · Artificial Analysis “Muse Spark 1.3 (max)”, retrieved 2026-09-19.
Try or learn moreHonest read
Best at
- Arena Score 1493 with only 4,723 votes — a strong start
- Measured output speed 223 tokens/second (median) — quick for its quality class
- Intelligence Index 48.2, fourth-best we recorded
Not the pick for
- Newest means least battle-tested — the confidence band is wide
- LMArena hasn't listed its price yet; the $1.25/$4.25 figure on this card comes from Artificial Analysis
Choose it if you are
Speed-sensitive products that still want top-10 quality.
Rankings come from the sources above; this plain-language read is our editorial summary of those numbers.
Compare with the leaders
Best image
Text-to-image, by blind human votes
GPT-Image 2.5 (Sunburst) · Arena Score 1421
Best video
Text-to-video, by blind human votes
Gemini Omni 1.1 Flash · Arena Score 1515
Best code
Coding, by blind human votes
Claude Fable 5 · Arena Score 1552
Best reasoning
Highest Intelligence Index we track
Claude Fable 5.1 · Index 53.4
Best open model
Open weights, by human votes
Kimi K3 · Arena Score 1485
Best value
Intelligence per dollar
GLM 5.3 Flash · 176 pts / $1M