Muse Spark vs Seed 2.1 Pro
Change modelsMuse SparkMeta
Seed 2.1 ProByteDance
IndexAll categories, out of 100.
59.7 ±3.5
59.9 ±8.9 best
GapIndex points below the top.
−0.2 · no clear gap
Top
CoverageIndex weight that has results.
95% best
65%
SpeedOutput tokens per second.
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EloLMArena rating and rank.
1474
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ReleasedMonth of release.
2026-04
2026-06
Input / 1MUS dollars per 1M input tokens.
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Output / 1MUS dollars per 1M output tokens.
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1K chats2K tokens in, 500 out, each.
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1K documents20K tokens in, 1K out, each.
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1K agent tasks200K tokens in, 20K out, each.
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ContextMaximum tokens in one request.
262K best
256K
AgenticMulti-step tasks with tools.
55.7
62.5 best
CodingCode writing and repair.
53.2
59.8 best
ReasoningLogic problems and puzzles.
59.7
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MultimodalTasks with images and text.
62.8 best
62.5
KnowledgeFacts and expert knowledge.
67.6 best
55.0
MultilingualTasks in many languages.
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InstructionTasks with strict prompt rules.
59.9
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MathMath problems.
60.0
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Benchmarks
4 sharedOnly Muse Spark: 43Only Seed 2.1 Pro: 6
Muse Spark
Seed 2.1 Pro