Inference
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GPT-5.5 vs Muse Wonder

Change models
GPT-5.5OpenAI
Muse WonderMeta
IndexAll categories, out of 100.
69.1 ±2.5
73.1 ±4.0 best
GapIndex points below the top.
−4.0 · no clear gap
Top
CoverageIndex weight that has results.
95% best
85%
SpeedOutput tokens per second.
52/s
80/s best
EloLMArena rating and rank.
1466
1503 best
ReleasedMonth of release.
2026-04
2026-10
Input / 1MUS dollars per 1M input tokens.
$5.00
$4.00 best
Output / 1MUS dollars per 1M output tokens.
$30.00
$20.00 best
Batch output / 1MBatch price per 1M output tokens.
$15.00
—
1K chats2K tokens in, 500 out, each.
$25.00
$18.00 best
1K documents20K tokens in, 1K out, each.
$130.00
$100.00 best
1K agent tasks200K tokens in, 20K out, each.
$1,600.00
$1,200.00 best
ContextMaximum tokens in one request.
1.05M
1.05M
AgenticMulti-step tasks with tools.
65.8
73.0 best
CodingCode writing and repair.
65.5
72.3 best
ReasoningLogic problems and puzzles.
74.1 best
73.1
MultimodalTasks with images and text.
66.8
—
KnowledgeFacts and expert knowledge.
70.4 best
68.6
MultilingualTasks in many languages.
—
—
InstructionTasks with strict prompt rules.
64.8
74.4 best
MathMath problems.
74.7 best
73.5

Benchmarks

35 shared
Only GPT-5.5: 77Only Muse Wonder: 27
GPT-5.5
Muse Wonder
Artificial Analysis Humanity's Last ExamKnowledge
45.8%26 / 222
50.1% best12 / 222
Artificial Analysis Long Context ReasoningReasoning
84.3% best7 / 217
80.7%37 / 217
Critical Physics TasksReasoning
27.1%17 / 214
28.3% best15 / 214
OTIS Mock AIME 2024-2025Math
100.0% best1 / 200
99.4%17 / 200
Artificial Analysis Omniscience AccuracyKnowledge
58.0% best10 / 164
38.0%59 / 164
GDPval-AA normalizedAgentic
42.5%44 / 133
63.5% best5 / 133
Vibe Code Bench v1.1Coding
69.8%50 / 123
83.1% best22 / 123
Artificial Analysis SciCodeCoding
55.8%27 / 114
60.3% best10 / 114
FrontierMath-Tiers-1-3-v2-PrivateMath
85.3% best16 / 90
82.1%18 / 90
Legal Research BenchLegal
40.4%35 / 90
50.5% best7 / 90
Tax Agent BenchFinance
21.8%49 / 82
36.3% best15 / 82
LiveBench Data AnalysisReasoning
81.6%5 / 80
81.6%5 / 80
LiveBench ReasoningReasoning
89.7%15 / 80
90.6% best11 / 80
Mystery Game PuzzlesReasoning
56.0% best12 / 80
51.0%15 / 80
Finance Agent (v2)Finance
51.8%39 / 79
56.6% best18 / 79
Code MigrationCoding
45.2%18 / 77
62.6% best6 / 77
EMBFinance
64.5%26 / 75
67.1% best18 / 75
FrontierMath-Tier-4-v2-PrivateMath
72.5% best16 / 72
70.7%17 / 72
LiveBench Agentic CodingAgentic
54.0%33 / 66
62.7% best9 / 66
LiveBench CodingCoding
82.1% best9 / 66
80.7%16 / 66