Compare / head-to-head

Muse Spark 1.3vsSeed-OSS-36B-Instruct

Muse Spark 1.3 leads 2 of 2 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
2 – 0
Muse Spark 1.3 leads
Cheaper per token
—
list price, input + output
Larger context
Muse Spark 1.3
1.0M tokens
Providers
2 providers
Meta · ByteDance Seed
Muse Spark 1.3
Meta · released 2026-09-02
textvisionvideo
Context
1.0M
Max out
—
Input /1M
$1.25 ↗
Output /1M
$4.25 ↗
Cached /1M
$0.15
Scores
29 · 7 core
Seed-OSS-36B-Instruct
ByteDance Seed · released 2025-08-20
text
Context
512K
Max out
—
Input /1M
—
Output /1M
—
Cached /1M
—
Scores
18 · 12 core
Quality

Benchmark matrix

BenchmarkMuse Spark 1.3Seed-OSS-36B-InstructΔEdge
Reported by both · 2
Chess Puzzles (Epoch AI run)38% ↗epoch run13% ↗epoch run+25 ptMuse Spark 1.3
OTIS Mock AIME 2024-2025 (Epoch AI run)99.2% ↗epoch run67.5% ↗epoch run+31.7 ptMuse Spark 1.3
Only Muse Spark 1.3 reports · 27
LMArena Elo1494.3 ↗not reported——
APEX-Agents (Mercor)57.8% ↗not reported——
AutomationBench49.6% ↗not reported——
DeepSearchQA90.3% ↗not reported——
DeepSWE v1.175.4% ↗not reported——
FrontierMath Tier 4 v2 (Epoch AI run)46.3% ↗epoch runnot reported——
FrontierMath Tiers 1-3 v2 (Epoch AI run)74.4% ↗epoch runnot reported——
GDPval-AA v21754 ↗not reported——
JobBench64.9% ↗not reported——
LiveBench Agentic Coding (LiveBench)64.1% ↗not reported——
LiveBench Coding (LiveBench)81.1% ↗not reported——
LiveBench Data Analysis (LiveBench)79.6% ↗not reported——
LiveBench Instruction Following (LiveBench)78% ↗not reported——
LiveBench Language (LiveBench)82.8% ↗not reported——
LiveBench Mathematics (LiveBench)95.9% ↗not reported——
LiveBench Reasoning (LiveBench)89.7% ↗not reported——
LMArena Agent (LMArena)0.04 ↗not reported——
LMArena Vision (LMArena)1290.2 ↗not reported——
LMArena WebDev (LMArena)1656.6 ↗not reported——
MRCR 256K-512K98.5% ↗not reported——
MRCR 512K-1M98.1% ↗not reported——
Mystery Game Puzzles (Epoch AI run)25% ↗epoch runnot reported——
OSWorld 2.0 (partial)66.9% ↗not reported——
SimpleBench (SimpleBench)81.8% ↗not reported——
SWE-Atlas Codebase QnA59.4% ↗not reported——
Terminal-Bench 2.188.8% ↗not reported——
Terminal-Bench 4.0 (Vals AI)24.7% ↗not reported——
Only Seed-OSS-36B-Instruct reports · 16
GPQA Diamondnot reported71.5% ↗epoch run——
MMLUnot reported87.4% ↗——
MMLU-Pronot reported82.7% ↗——
AIME24not reported91.7% ↗——
AIME25not reported84.7% ↗——
BeyondAIMEnot reported65% ↗——
GPQA-Dnot reported71.4% ↗——
HLEnot reported10.1% ↗——
IFEvalnot reported85.8% ↗——
LiveCodeBench v6 (02/2025-05/2025)not reported67.4% ↗——
MMMLUnot reported78.4% ↗——
Multi-SWE-Benchnot reported17% ↗——
RULER (128K)not reported94.6% ↗——
SuperGPQAnot reported55.7% ↗——
SWE-Bench Verified (OpenHands)not reported56% ↗——
TAU1-Retailnot reported70.4% ↗——
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 Muse Spark 1.3 minus Seed-OSS-36B-Instruct 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

SpecMuse Spark 1.3Seed-OSS-36B-InstructEdge
Context window1.0M tokens512K tokensMuse 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——
Modalitiestext · vision · videotextMuse Spark 1.3
Released2026-09-022025-08-20—
Cited benchmark scores2918—
Reliability

Provider status

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