Inference
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GPT-6.1 Sol vs Muse Spark 1.3

Change models
GPT-6.1 SolOpenAI
Muse Spark 1.3Meta
IndexAll categories, out of 100.
78.0 ±2.2 best
70.1 ±4.0
GapIndex points below the top.
Top
−7.9
CoverageIndex weight that has results.
100% best
85%
SpeedOutput tokens per second.
34/s
76/s best
EloLMArena rating and rank.
1446
1491 best
ReleasedMonth of release.
2026-09
2026-09
Input / 1MUS dollars per 1M input tokens.
$2.00
$1.25 best
Output / 1MUS dollars per 1M output tokens.
$10.00
$4.25 best
Batch output / 1MBatch price per 1M output tokens.
$5.00
—
1K chats2K tokens in, 500 out, each.
$9.00
$4.63 best
1K documents20K tokens in, 1K out, each.
$50.00
$29.25 best
1K agent tasks200K tokens in, 20K out, each.
$600.00
$335.00 best
ContextMaximum tokens in one request.
1.05M
1.05M
AgenticMulti-step tasks with tools.
76.0 best
70.4
CodingCode writing and repair.
75.8 best
68.8
ReasoningLogic problems and puzzles.
81.8 best
68.1
MultimodalTasks with images and text.
72.2
—
KnowledgeFacts and expert knowledge.
78.0 best
67.5
MultilingualTasks in many languages.
73.2
—
InstructionTasks with strict prompt rules.
76.6
84.4 best
MathMath problems.
78.2 best
68.6

Benchmarks

45 shared
Only GPT-6.1 Sol: 53Only Muse Spark 1.3: 14
GPT-6.1 Sol
Muse Spark 1.3
Artificial Analysis Humanity's Last ExamKnowledge
52.9% best10 / 222
48.7%15 / 222
Artificial Analysis Long Context ReasoningReasoning
83.0%18 / 217
83.0%18 / 217
Critical Physics TasksReasoning
31.7% best4 / 214
24.9%21 / 214
OTIS Mock AIME 2024-2025Math
100.0% best1 / 200
99.2%19 / 200
Artificial Analysis Omniscience AccuracyKnowledge
61.8% best5 / 164
43.6%41 / 164
GDPval-AA normalizedAgentic
54.8%22 / 133
59.0% best10 / 133
Vibe Code Bench v1.1Coding
88.9% best10 / 123
82.9%23 / 123
Artificial Analysis SciCodeCoding
54.2%35 / 114
58.8% best14 / 114
Chess PuzzlesReasoning
68.0% best4 / 90
37.0%39 / 90
FrontierMath-Tiers-1-3-v2-PrivateMath
93.7% best2 / 90
74.0%25 / 90
Legal Research BenchLegal
38.5%39 / 90
40.9% best33 / 90
Tax Agent BenchFinance
21.8%49 / 82
37.9% best14 / 82
LiveBench Data AnalysisReasoning
82.7% best3 / 80
79.6%13 / 80
LiveBench ReasoningReasoning
92.6% best3 / 80
89.7%15 / 80
Mystery Game PuzzlesReasoning
80.0% best3 / 80
25.0%37 / 80
Finance Agent (v2)Finance
52.0%37 / 79
58.9% best8 / 79
Code MigrationCoding
65.1% best5 / 77
27.6%44 / 77
EMBFinance
70.8% best14 / 75
62.7%31 / 75
FrontierMath-Tier-4-v2-PrivateMath
100.0% best1 / 72
46.3%24 / 72
LiveBench Agentic CodingAgentic
54.5%31 / 66
64.1% best8 / 66