GPT-5.4 vs Muse Ember
Change modelsGPT-5.4OpenAI
Muse EmberMeta
IndexAll categories, out of 100.
64.4 ±2.4
64.6 ±8.1 best
GapIndex points below the top.
−0.2 · no clear gap
Top
CoverageIndex weight that has results.
95% best
70%
SpeedOutput tokens per second.
38/s
158/s best
EloLMArena rating and rank.
1452
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ReleasedMonth of release.
2026-03
2026-11
Input / 1MUS dollars per 1M input tokens.
$2.50
$0.10 best
Output / 1MUS dollars per 1M output tokens.
$15.00
$0.50 best
Batch output / 1MBatch price per 1M output tokens.
$7.50
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1K chats2K tokens in, 500 out, each.
$12.50
$0.45 best
1K documents20K tokens in, 1K out, each.
$65.00
$2.50 best
1K agent tasks200K tokens in, 20K out, each.
$800.00
$30.00 best
ContextMaximum tokens in one request.
1.05M
1.05M
AgenticMulti-step tasks with tools.
62.0
70.0 best
CodingCode writing and repair.
61.0
72.3 best
ReasoningLogic problems and puzzles.
68.8 best
63.9
MultimodalTasks with images and text.
61.9
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KnowledgeFacts and expert knowledge.
66.2 best
37.3
MultilingualTasks in many languages.
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InstructionTasks with strict prompt rules.
63.3
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MathMath problems.
67.8
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Benchmarks
3 sharedOnly GPT-5.4: 98Only Muse Ember: 15
GPT-5.4
Muse Ember