GPT-5.6 Luna vs Muse Spark 1.2
Change modelsGPT-5.6 LunaOpenAI
Muse Spark 1.2Meta
IndexAll categories, out of 100.
65.5 ±2.1 best
64.9 ±3.3
GapIndex points below the top.
Top
−0.6 · no clear gap
CoverageIndex weight that has results.
100% best
95%
SpeedOutput tokens per second.
51/s
123/s best
EloLMArena rating and rank.
1431
1484 best
ReleasedMonth of release.
2026-07
2026-08
Input / 1MUS dollars per 1M input tokens.
$0.20 best
$1.25
Output / 1MUS dollars per 1M output tokens.
$1.20 best
$4.25
Batch output / 1MBatch price per 1M output tokens.
$0.60
—
1K chats2K tokens in, 500 out, each.
$1.00 best
$4.63
1K documents20K tokens in, 1K out, each.
$5.20 best
$29.25
1K agent tasks200K tokens in, 20K out, each.
$64.00 best
$335.00
ContextMaximum tokens in one request.
1.05M
1.05M
AgenticMulti-step tasks with tools.
64.7 best
62.7
CodingCode writing and repair.
67.4 best
64.3
ReasoningLogic problems and puzzles.
66.3 best
64.1
MultimodalTasks with images and text.
65.8
67.2 best
KnowledgeFacts and expert knowledge.
62.1
65.2 best
MultilingualTasks in many languages.
53.1
—
InstructionTasks with strict prompt rules.
48.2
77.0 best
MathMath problems.
68.4 best
64.4
Benchmarks
54 sharedOnly GPT-5.6 Luna: 48Only Muse Spark 1.2: 3
GPT-5.6 Luna
Muse Spark 1.2