Muse Spark 1.3 vs Grok 4.3: Release Comparison
Comparison of the Muse Spark 1.3 and Grok 4.3 releases: 2 and 4 models respectively, each with different intelligence, performance, and pricing characteristics. Below is a comparison of the key metrics across all 6 models.
- For intelligence, Muse Spark 1.3 scores highest: Muse Spark 1.3 (max) at 48, against Grok 4.3 (high) at 25 for Grok 4.3.
- For output speed, Muse Spark 1.3 is fastest: Muse Spark 1.3 (xhigh) at 232 t/s, against Grok 4.3 (high) at 111 t/s for Grok 4.3.
- For cost per task, Grok 4.3 is cheapest: Grok 4.3 (Non-reasoning) at $0.14, against Muse Spark 1.3 (xhigh) at $1.37 for Muse Spark 1.3.
Releases compared
Intelligence
Artificial Analysis Intelligence Index
Intelligence Index vs. Cost per Intelligence Index Task
Cost
Cost per Intelligence Index Task
Speed & Latency
Output Speed
Capability Scores
Capability Indices
Incorporates 7 evaluations: AA-Omniscience, GDPval-AA v2, AA-Briefcase, Humanity's Last Exam, AutomationBench-AA, AA-LCR v1.1, GDP.pdf · Higher is better
Incorporates 6 evaluations: AA-Omniscience, GDPval-AA v2, AA-Briefcase, AutomationBench-AA, AA-LCR v1.1, GDP.pdf · Higher is better
Incorporates 7 evaluations: AA-Omniscience, GDPval-AA v2, AA-Briefcase, Humanity's Last Exam, AA-LCR v1.1, GDP.pdf, AutomationBench-AA · Higher is better
Incorporates 6 evaluations: AA-Omniscience, GDPval-AA v2, AA-Briefcase, MLCR-AA, Humanity's Last Exam, AutomationBench-AA · Higher is better
Incorporates 6 evaluations: AA-Omniscience, Humanity's Last Exam, CritPt, GDPval-AA v2, AA-Briefcase, Terminal-Bench 4.0 · Higher is better
Incorporates 5 evaluations: AA-Omniscience, Humanity's Last Exam, GDPval-AA v2, AA-Briefcase, AA-LCR v1.1 · Higher is better
Further details
Input modality | Output modality | Weights | Provider Benchmarks | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Muse Spark 1.3 (max) |  Meta | 48 | 50 | 51 | 51 | 49 | 49 | 56 | $1.60 | $0.8 | $1.25 | $4.25 | $0.15 | $2,000 | 60k | 34k | 168M | 221 | 20.74s | 29.80s | 32.07s | 273.14s | - | 1M | Sep 2026 | - | Yes | Supports: text, image, and video | Supports: text | Not available | - | | |
| Muse Spark 1.3 (xhigh) | Meta | 45 | 48 | 49 | 49 | - | 46 | 55 | $1.37 | $0.8 | $1.25 | $4.25 | $0.15 | $1,655 | 55k | 33k | 137M | 232 | 22.70s | 31.34s | 33.50s | 244.83s | - | 1M | Sep 2026 | - | Yes | Supports: text, image, and video | Supports: text | Not available | - | | |
| Grok 4.3 (high) |  SpaceXAI | 25 | 28 | 18 | 33 | 27 | 31 | 41 | $0.17 | $0.6 | $1.25 | $2.50 | $0.20 | $332 | 18k | 11k | 87M | 111 | 19.61s | 19.61s | 24.11s | 161.88s | - | 1M | Apr 2026 | - | Yes | Supports: text and image | Supports: text | Not available | - |   | |
| Grok 4.3 (medium) | SpaceXAI | 25 | - | - | - | - | - | - | - | $0.6 | $1.25 | $2.50 | $0.20 | - | - | - | - | 102 | 11.48s | 11.48s | 16.36s | - | - | 1M | Apr 2026 | - | Yes | Supports: text and image | Supports: text | Not available | - | | |
| Grok 4.3 (low) | SpaceXAI | 24 | - | - | - | - | - | - | - | $0.6 | $1.25 | $2.50 | $0.20 | - | - | - | - | 102 | 4.64s | 4.64s | 9.53s | - | - | 1M | Apr 2026 | - | Yes | Supports: text and image | Supports: text | Not available | - | | |
| Grok 4.3 (Non-reasoning) | SpaceXAI | 15 | 16 | 14 | 19 | - | 15 | 21 | $0.14 | $0.6 | $1.25 | $2.50 | $0.20 | $203 | 9k | 0 | 12M | 109 | 0.71s | 0.71s | 5.31s | 86.37s | - | 1M | Apr 2026 | - | No | Supports: text and image | Supports: text | Not available | - | | |