Compare / head-to-head
Grok 4vs
Muse Spark 1.3
Muse Spark 1.3 leads 5 of 5 shared benchmarks. Muse Spark 1.3 has the larger context window (1.0M tokens).
Benchmarks from cited public sources; pricing from official pages; status from official provider feeds.
Shared benchmarks
0 – 5
Muse Spark 1.3 leads
Cheaper per token
—
list price, input + output
Larger context
Muse Spark 1.3
1.0M tokens
Providers
2 providers
xAI · Meta
Grok 4
xAI · released 2025-07-09
textvision
- Context
- 256K
- Max out
- —
- Input /1M
- —
- Output /1M
- —
- Cached /1M
- —
- Scores
- 17 · 8 core
Muse Spark 1.3
Meta · released 2026-09-02
textvisionvideo
Quality
Benchmark matrix
5 shared · 12 only Grok 4 · 24 only Muse Spark 1.3| Benchmark | Grok 4 | Muse Spark 1.3 | Δ | Edge |
|---|---|---|---|---|
| Reported by both · 5 | ||||
| LMArena Elo | 1410.8 ↗ | 1494.3 ↗ | -83.5 | Muse Spark 1.3 |
| Chess Puzzles (Epoch AI run) | 28% ↗epoch run | 38% ↗epoch run | -10 pt | Muse Spark 1.3 |
| LMArena Vision (LMArena) | 1184.2 ↗ | 1290.2 ↗ | -106 | Muse Spark 1.3 |
| OTIS Mock AIME 2024-2025 (Epoch AI run) | 84% ↗epoch run | 99.2% ↗epoch run | -15.2 pt | Muse Spark 1.3 |
| SimpleBench (SimpleBench) | 60.5% ↗ | 81.8% ↗ | -21.3 pt | Muse Spark 1.3 |
| Only Grok 4 reports · 12 | ||||
| GPQA Diamond | 87% ↗epoch run | not reported | — | — |
| AIME 2025 | 91.7% ↗ | not reported | — | — |
| Humanity's Last Exam (no tools) | 25.4% ↗ | not reported | — | — |
| ARC-AGI-2 | 15.9% ↗ | not reported | — | — |
| BALROG (BALROG) | 43.6% ↗ | not reported | — | — |
| GPQA (no tools) | 87.5% ↗ | not reported | — | — |
| HMMT 2025 (no tools) | 90% ↗ | not reported | — | — |
| Humanity's Last Exam (with tools) | 38.6% ↗ | not reported | — | — |
| LiveCodeBench (Jan - May) | 79% ↗ | not reported | — | — |
| SAGE (Vals AI) | 25.1% ↗ | not reported | — | — |
| USAMO 2025 (no tools) | 37.5% ↗ | not reported | — | — |
| WeirdML (Håvard Tveit Ihle) | 45.7% ↗ | not reported | — | — |
| Only Muse Spark 1.3 reports · 24 | ||||
| APEX-Agents (Mercor) | not reported | 57.8% ↗ | — | — |
| AutomationBench | not reported | 49.6% ↗ | — | — |
| DeepSearchQA | not reported | 90.3% ↗ | — | — |
| DeepSWE v1.1 | not reported | 75.4% ↗ | — | — |
| FrontierMath Tier 4 v2 (Epoch AI run) | not reported | 46.3% ↗epoch run | — | — |
| FrontierMath Tiers 1-3 v2 (Epoch AI run) | not reported | 74.4% ↗epoch run | — | — |
| GDPval-AA v2 | not reported | 1754 ↗ | — | — |
| JobBench | not reported | 64.9% ↗ | — | — |
| LiveBench Agentic Coding (LiveBench) | not reported | 64.1% ↗ | — | — |
| LiveBench Coding (LiveBench) | not reported | 81.1% ↗ | — | — |
| LiveBench Data Analysis (LiveBench) | not reported | 79.6% ↗ | — | — |
| LiveBench Instruction Following (LiveBench) | not reported | 78% ↗ | — | — |
| LiveBench Language (LiveBench) | not reported | 82.8% ↗ | — | — |
| LiveBench Mathematics (LiveBench) | not reported | 95.9% ↗ | — | — |
| LiveBench Reasoning (LiveBench) | not reported | 89.7% ↗ | — | — |
| LMArena Agent (LMArena) | not reported | 0.04 ↗ | — | — |
| LMArena WebDev (LMArena) | not reported | 1656.6 ↗ | — | — |
| MRCR 256K-512K | not reported | 98.5% ↗ | — | — |
| MRCR 512K-1M | not reported | 98.1% ↗ | — | — |
| Mystery Game Puzzles (Epoch AI run) | not reported | 25% ↗epoch run | — | — |
| OSWorld 2.0 (partial) | not reported | 66.9% ↗ | — | — |
| SWE-Atlas Codebase QnA | not reported | 59.4% ↗ | — | — |
| Terminal-Bench 2.1 | not reported | 88.8% ↗ | — | — |
| Terminal-Bench 4.0 (Vals AI) | not reported | 24.7% ↗ | — | — |
Scores tagged "epoch" or "matharena" are independent runs, used only where the lab has not published its own; ⚠ marks rows MathArena flags as released after the competition. Higher is better on every row. Δ is Grok 4 minus Muse Spark 1.3 in the benchmark's own unit. "Not reported" means the lab has not published that figure; it is not a zero. ↗ opens the source.
Specs & pricing
Side by side
Official pricing pages and model cards| Spec | Grok 4 | Muse Spark 1.3 | Edge |
|---|---|---|---|
| Context window | 256K tokens | 1.0M tokens | Muse Spark 1.3 |
| Max output | — | — | — |
| Input price / 1M | — | $1.25 ↗ | — |
| Output price / 1M | — | $4.25 ↗ | — |
| Cached input / 1M | — | $0.15 ↗ | — |
| Input + output / 1M Lower is cheaper. List prices; batch, tool and regional fees excluded. | — | $5.5 | — |
| Modalities | text · vision | text · vision · video | Muse Spark 1.3 |
| Released | 2025-07-09 | 2026-09-02 | — |
| Cited benchmark scores | 17 | 29 | — |
Reliability
Provider status
Live from /statusMore matchups
Grok 4 vs …
Models sharing the most benchmarksMore matchups
Muse Spark 1.3 vs …
Models sharing the most benchmarksBuilt by Respan
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