B.O.B. Leaderboard

OpenAIreleased 9 Jul 2026

GPT-5.6 Luna

#43 of 9533 of 46 benchmarksBenchmaxxed?

49.0

B.O.B.

Category profile

  • Real use (hard to game)2×31
  • Reasoning & knowledge47
  • Math72
  • Coding52
  • Agents & real work40
  • Independent indexes70

Reality check

Lab tests

53

Real use (10 tests)

31

Scores much higher on lab tests than on real-use tests. It does 22 points better on the usual lab tests than on tests that are hard to train for.

What counts as real use

Price per 1M tokens (OpenRouter)

$0.20 in · $1.20 out

Cost per task on the AA index

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Output speed (Artificial Analysis)

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§Receipts

Every benchmark result

“Beats” = the share of tracked models this one beat on that test. The raw score is its best reported setting.

BenchmarkRawBeatsSource
Real use (hard to game) · Real use 31
EQ-Bench Creative Writingas gpt-5.6-luna1829
58%of 46
Sam Paech (open source)
LMArena WebDevas gpt-5.6-luna-xhigh (codex-harness)1518
47%of 82
LMArena (blind human votes)
Vals Indexas openai/gpt-5.6-luna51.7%
46%of 42
Vals AI (private test sets)
LMArena Textas gpt-5.6-luna-xhigh1453
41%of 80
LMArena (blind human votes)
LiveBench 2.0 (real-work suites)as gpt-5.6-luna59.8%
32%of 39
LiveBench / Abacus.AI
LMArena Agent Arenaas GPT 5.6 Luna (xHigh)-0.018
31%of 50
LMArena (real agent sessions)
SWE-rebenchas GPT-5.6 Luna [medium]43.6%
18%of 34
Nebius
BridgeBench (overall)as GPT-5.6 Luna476
14%of 29
BridgeMind
Kagi LLM Benchmarkas gpt-5-6-luna49.1%
14%of 22
Kagi
SimpleBenchas gpt-5.6-luna_unknown46.8%
10%of 30
Epoch AI Benchmarking Hub
Reasoning & knowledge · Reasoning 47
CritPt (physics research)as gpt-5.6-luna_max20.6%
73%of 89
Epoch AI Benchmarking Hub
GPQA Diamondas gpt-5.6-luna_max91.6%
68%of 70
Epoch AI Benchmarking Hub
Chess Puzzlesas gpt-5.6-luna_max43.0%
63%of 73
Epoch AI Benchmarking Hub
Mystery Game Puzzlesas gpt-5.6-luna_max21.0%
39%of 57
Epoch AI Benchmarking Hub
SimpleQA Verifiedas gpt-5.6-luna_max41.0%
37%of 57
Epoch AI Benchmarking Hub
ARC-AGI-2as gpt-5.6-luna_max59.5%
28%of 44
Epoch AI Benchmarking Hub
Blueprint-Bench 2as gpt-5.6-luna_unknown22.6%
20%of 31
Epoch AI Benchmarking Hub
Math · Math 72
FrontierMath Tiers 1-3as gpt-5.6-luna_max82.1%
76%of 60
Epoch AI Benchmarking Hub
OTIS Mock AIMEas gpt-5.6-luna_max98.3%
72%of 73
Epoch AI Benchmarking Hub
FrontierMath Tier 4as gpt-5.6-luna_max61.0%
71%of 52
Epoch AI Benchmarking Hub
ProofBenchas gpt-5.6-luna_max60.0%
70%of 68
Epoch AI Benchmarking Hub
Coding · Coding 52
ALE-Benchas gpt-5.6-luna_max1667.4%
83%of 71
Epoch AI Benchmarking Hub
DeepSWEas gpt-5.6-luna_max67.2%
64%of 26
Epoch AI Benchmarking Hub
SciCodeas gpt-5.6-luna_max53.6%
61%of 86
Epoch AI Benchmarking Hub
WeirdMLas gpt-5.6-luna_high60.9%
51%of 52
Epoch AI Benchmarking Hub
FrontierCodeas gpt-5.6-luna_unknown39.8%
41%of 45
Epoch AI Benchmarking Hub
CursorBenchas gpt-5.6-luna_max35.9%
13%of 17
Epoch AI Benchmarking Hub
Agents & real work · Agents 40
LMCAas gpt-5.6-luna_max48.5%
64%of 67
Epoch AI Benchmarking Hub
GDP.pdfas gpt-5.6-luna_unknown22.7%
44%of 37
Epoch AI Benchmarking Hub
DTBenchas gpt-5.6-luna_xhigh89.1%
39%of 67
Epoch AI Benchmarking Hub
APEX-Agentsas gpt-5.6-luna_unknown43.0%
27%of 48
Epoch AI Benchmarking Hub
Vending-Bench 2as gpt-5.6-luna_unknown4094.7%
26%of 47
Epoch AI Benchmarking Hub
Independent indexes · Indexes 70
Epoch Capabilities Indexas GPT-5.6 Luna156.3
70%of 81
Epoch AI