Compare / head-to-head
Claude Opus 4.8vs
Muse Spark 1.3
Muse Spark 1.3 leads 15 of 20 shared benchmarks. Muse Spark 1.3 is 5.5x cheaper per token. 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
4 – 15
Muse Spark 1.3 leads · 1 tied
Cheaper per token
Muse Spark 1.3
5.5x cheaper, input + output
Larger context
Muse Spark 1.3
1.0M tokens
Providers
2 providers
Anthropic · Meta
Claude Opus 4.8
Anthropic · released 2026-05-28
textvision
Muse Spark 1.3
Meta · released 2026-09-02
textvisionvideo
Quality
Benchmark matrix
20 shared · 20 only Claude Opus 4.8 · 9 only Muse Spark 1.3| Benchmark | Claude Opus 4.8 | Muse Spark 1.3 | Δ | Edge |
|---|---|---|---|---|
| Reported by both · 20 | ||||
| LMArena Elo | 1452.7 ↗ | 1494.3 ↗ | -41.6 | Muse Spark 1.3 |
| APEX-Agents (Mercor) | 48.9% ↗ | 57.8% ↗ | -8.9 pt | Muse Spark 1.3 |
| Chess Puzzles (Epoch AI run) | 34% ↗epoch run | 38% ↗epoch run | -4 pt | Muse Spark 1.3 |
| FrontierMath Tier 4 v2 (Epoch AI run) | 56.1% ↗epoch run | 46.3% ↗epoch run | +9.8 pt | Claude Opus 4.8 |
| FrontierMath Tiers 1-3 v2 (Epoch AI run) | 80% ↗epoch run | 74.4% ↗epoch run | +5.6 pt | Claude Opus 4.8 |
| LiveBench Agentic Coding (LiveBench) | 50.5% ↗ | 64.1% ↗ | -13.6 pt | Muse Spark 1.3 |
| LiveBench Coding (LiveBench) | 81.8% ↗ | 81.1% ↗ | +0.7 pt | Claude Opus 4.8 |
| LiveBench Data Analysis (LiveBench) | 66% ↗ | 79.6% ↗ | -13.6 pt | Muse Spark 1.3 |
| LiveBench Instruction Following (LiveBench) | 72% ↗ | 78% ↗ | -6 pt | Muse Spark 1.3 |
| LiveBench Language (LiveBench) | 79.7% ↗ | 82.8% ↗ | -3.1 pt | Muse Spark 1.3 |
| LiveBench Mathematics (LiveBench) | 94.3% ↗ | 95.9% ↗ | -1.6 pt | Muse Spark 1.3 |
| LiveBench Reasoning (LiveBench) | 89.2% ↗ | 89.7% ↗ | -0.5 pt | Muse Spark 1.3 |
| LMArena Agent (LMArena) | 0.0664 ↗ | 0.04 ↗ | 0 | Tie |
| LMArena Vision (LMArena) | 1286.4 ↗ | 1290.2 ↗ | -3.8 | Muse Spark 1.3 |
| LMArena WebDev (LMArena) | 1555.5 ↗ | 1656.6 ↗ | -101.1 | Muse Spark 1.3 |
| Mystery Game Puzzles (Epoch AI run) | 36% ↗epoch run | 25% ↗epoch run | +11 pt | Claude Opus 4.8 |
| OTIS Mock AIME 2024-2025 (Epoch AI run) | 98.3% ↗epoch run | 99.2% ↗epoch run | -0.9 pt | Muse Spark 1.3 |
| SimpleBench (SimpleBench) | 64.8% ↗ | 81.8% ↗ | -17 pt | Muse Spark 1.3 |
| Terminal-Bench 2.1 | 74.6% ↗ | 88.8% ↗ | -14.2 pt | Muse Spark 1.3 |
| Terminal-Bench 4.0 (Vals AI) | 23.2% ↗ | 24.7% ↗ | -1.5 pt | Muse Spark 1.3 |
| Only Claude Opus 4.8 reports · 20 | ||||
| SWE-bench Verified | 88.6% ↗ | not reported | — | — |
| GPQA Diamond | 93.6% ↗ | not reported | — | — |
| AIME 2026 | 100% ↗matharena ⚠ | not reported | — | — |
| Humanity's Last Exam (no tools) | 49.8% ↗ | not reported | — | — |
| BrowseComp | 84.3% ↗ | not reported | — | — |
| DeepSWE v1.1 (Datacurve) | 59% ↗ | not reported | — | — |
| EBR-bench (Epoch AI run) | 28.6% ↗epoch run | not reported | — | — |
| Furniture Assembly (Epoch AI run) | 42.5% ↗epoch run | not reported | — | — |
| GSO Opt@1 (GSO) | 47.1% ↗ | not reported | — | — |
| Humanity's Last Exam (with tools) | 57.9% ↗ | not reported | — | — |
| OSWorld-Verified | 83.4% ↗ | not reported | — | — |
| SAGE (Vals AI) | 54.8% ↗ | not reported | — | — |
| SimpleQA Verified | 53% ↗epoch run | not reported | — | — |
| SWE-bench Multilingual | 84.4% ↗ | not reported | — | — |
| SWE-bench Multimodal | 38.4% ↗ | not reported | — | — |
| SWE-Bench Pro | 69.2% ↗ | not reported | — | — |
| tau2-bench Banking Knowledge (Sierra) | 39.7% ↗ | not reported | — | — |
| Toolathlon-Verified (HKUST) | 76.2% ↗ | not reported | — | — |
| Vending-Bench 2 (Andon Labs) | 5787.43 ↗ | not reported | — | — |
| WeirdML (Håvard Tveit Ihle) | 82.9% ↗ | not reported | — | — |
| Only Muse Spark 1.3 reports · 9 | ||||
| AutomationBench | not reported | 49.6% ↗ | — | — |
| DeepSearchQA | not reported | 90.3% ↗ | — | — |
| DeepSWE v1.1 | not reported | 75.4% ↗ | — | — |
| GDPval-AA v2 | not reported | 1754 ↗ | — | — |
| JobBench | not reported | 64.9% ↗ | — | — |
| MRCR 256K-512K | not reported | 98.5% ↗ | — | — |
| MRCR 512K-1M | not reported | 98.1% ↗ | — | — |
| OSWorld 2.0 (partial) | not reported | 66.9% ↗ | — | — |
| SWE-Atlas Codebase QnA | not reported | 59.4% ↗ | — | — |
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 Claude Opus 4.8 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 | Claude Opus 4.8 | Muse Spark 1.3 | Edge |
|---|---|---|---|
| Context window | 1M tokens | 1.0M tokens | Muse Spark 1.3 |
| Max output | 128K tokens | — | — |
| Input price / 1M | $5 ↗ | $1.25 ↗ | Muse Spark 1.3 |
| Output price / 1M | $25 ↗ | $4.25 ↗ | Muse Spark 1.3 |
| Cached input / 1M | $0.5 ↗ | $0.15 ↗ | Muse Spark 1.3 |
| Input + output / 1M Lower is cheaper. List prices; batch, tool and regional fees excluded. | $30 | $5.5 | Muse Spark 1.3 |
| Modalities | text · vision | text · vision · video | Muse Spark 1.3 |
| Released | 2026-05-28 | 2026-09-02 | — |
| Cited benchmark scores | 47 | 29 | — |
Reliability
Provider status
Live from /statusMore matchups
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Which one wins on your data?
Public benchmarks are a starting point. Run Claude Opus 4.8 and Muse Spark 1.3 on your own prompts with Respan evals, or route to either through one gateway key with automatic failover.