B.O.B. Leaderboard

OpenAIreleased 9 Jul 2026

GPT-5.6 Terra

#20 of 9533 of 46 benchmarksBenchmaxxed?

63.6

B.O.B.

Category profile

  • Real use (hard to game)2×42
  • Reasoning & knowledge67
  • Math80
  • Coding66
  • Agents & real work70
  • Independent indexes78

Reality check

Lab tests

71

Real use (9 tests)

42

Scores much higher on lab tests than on real-use tests. It does 28 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)

$2.00 in · $12.00 out

Cost per task on the AA index

$1.40

Output speed (Artificial Analysis)

127 tok/s

§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 42
EQ-Bench Creative Writingas gpt-5.6-terra1855
71%of 46
Sam Paech (open source)
LMArena Textas gpt-5.6-terra-xhigh1466
56%of 80
LMArena (blind human votes)
Vals Indexas openai/gpt-5.6-terra53.1%
54%of 42
Vals AI (private test sets)
LiveBench 2.0 (real-work suites)as gpt-5.6-terra71.0%
51%of 39
LiveBench / Abacus.AI
LMArena WebDevas gpt-5.6-terra-xhigh (codex-harness)1522
48%of 82
LMArena (blind human votes)
LMArena Agent Arenaas GPT 5.6 Terra (xHigh)0.005
43%of 50
LMArena (real agent sessions)
BridgeBench (overall)as GPT-5.6 Terra511
25%of 29
BridgeMind
Kagi LLM Benchmarkas gpt-5-6-terra51.3%
19%of 22
Kagi
SimpleBenchas gpt-5.6-terra_unknown48.9%
14%of 30
Epoch AI Benchmarking Hub
Reasoning & knowledge · Reasoning 67
CritPt (physics research)as gpt-5.6-terra_max30.0%
90%of 89
Epoch AI Benchmarking Hub
GPQA Diamondas gpt-5.6-terra_max93.3%
80%of 70
Epoch AI Benchmarking Hub
Chess Puzzlesas gpt-5.6-terra_max47.0%
74%of 73
Epoch AI Benchmarking Hub
ARC-AGI-2as gpt-5.6-terra_max83.9%
70%of 44
Epoch AI Benchmarking Hub
Mystery Game Puzzlesas gpt-5.6-terra_max35.0%
67%of 57
Epoch AI Benchmarking Hub
Blueprint-Bench 2as gpt-5.6-terra_unknown30.8%
47%of 31
Epoch AI Benchmarking Hub
SimpleQA Verifiedas gpt-5.6-terra_max43.2%
43%of 57
Epoch AI Benchmarking Hub
Math · Math 80
OTIS Mock AIMEas gpt-5.6-terra_max99.7%
86%of 73
Epoch AI Benchmarking Hub
FrontierMath Tiers 1-3as gpt-5.6-terra_max86.0%
84%of 60
Epoch AI Benchmarking Hub
ProofBenchas gpt-5.6-terra_xhigh74.0%
78%of 68
Epoch AI Benchmarking Hub
FrontierMath Tier 4as gpt-5.6-terra_max70.7%
73%of 52
Epoch AI Benchmarking Hub
Coding · Coding 66
ALE-Benchas gpt-5.6-terra_max1951.4%
89%of 71
Epoch AI Benchmarking Hub
DeepSWEas gpt-5.6-terra_max69.6%
80%of 26
Epoch AI Benchmarking Hub
WeirdMLas gpt-5.6-terra_high78.3%
77%of 52
Epoch AI Benchmarking Hub
SciCodeas gpt-5.6-terra_max55.0%
69%of 86
Epoch AI Benchmarking Hub
FrontierCodeas gpt-5.6-terra_unknown41.3%
48%of 45
Epoch AI Benchmarking Hub
CursorBenchas gpt-5.6-terra_max41.3%
31%of 17
Epoch AI Benchmarking Hub
Agents & real work · Agents 70
LMCAas gpt-5.6-terra_max55.0%
83%of 67
Epoch AI Benchmarking Hub
APEX-Agentsas gpt-5.6-terra_max58.2%
72%of 48
Epoch AI Benchmarking Hub
Vending-Bench 2as gpt-5.6-terra_unknown7343.2%
67%of 47
Epoch AI Benchmarking Hub
GDP.pdfas gpt-5.6-terra_unknown24.7%
67%of 37
Epoch AI Benchmarking Hub
DTBenchas gpt-5.6-terra_max93.3%
61%of 67
Epoch AI Benchmarking Hub
Independent indexes · Indexes 78
Epoch Capabilities Indexas GPT-5.6 Terra159.4
86%of 81
Epoch AI
Artificial Analysis Intelligence Indexas GPT-5.6 Terra (max)42
69%of 54
Artificial Analysis