Noometry

Model comparison

Claude 2 vs GPT-5.6 Terra

GPT-5.6 Terra is the stronger model overall, scoring 59.1 to 24.7 on the Noometry Index.

Last verified . 4 shared benchmarks.

Claude 2 Anthropic

24.7

Rank #342 Reported

GPT-5.6 Terra OpenAI

59.1

Rank #15 Confirmed

Summary

  • They share 4 benchmarks with published results for both. Claude 2 scores higher in 0 categories and GPT-5.6 Terra in 3 categories; 3 gaps are clear of the uncertainty.
  • The widest gap is in math, where GPT-5.6 Terra leads 81.5 to 8.7.
  • The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 2.5% for Claude 2 and 99.7% for GPT-5.6 Terra.

Side by side

Claude 2GPT-5.6 Terra
ProviderAnthropicOpenAI
Noometry Index24.759.1
Released2023-07-112026-07-09
WeightsProprietaryProprietary
Context window—1.05M
Max output—128K
Input $ / M tokens—$2
Output $ / M tokens—$12
Results tracked852

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Category by category

Coding Not comparable

Claude 2: —, GPT-5.6 Terra: 57.1 (#16)

BenchmarkClaude 2GPT-5.6 Terra
DeepSWE—69.6%
FrontierCode—41.3%
CursorBench—41.3%
LMArena WebDev—1520
SciCode—55%
WeirdML—78.3%
LMArena Coding—1484
ALE-Bench—1,951
HumanEval+61.6%—

Agentic & Tool Use Not comparable

Claude 2: —, GPT-5.6 Terra: 40.2 (#23)

BenchmarkClaude 2GPT-5.6 Terra
APEX-Agents—58.2%
BALROG—53.2%
GDP.pdf—24.7%
Vending-Bench 2—7,343

Reasoning GPT-5.6 Terra leads

Claude 2: 20.8 (#213), GPT-5.6 Terra: 60.6 (#19)

BenchmarkClaude 2GPT-5.6 Terra
DTBench51.9%93.3%
Epoch Capabilities Index120.08159.31
ARC-AGI-2—83.9%
SimpleBench—48.9%
Kagi LLM Benchmark—51.3%
NYT Connections (extended)—78.4%
ARC-AGI-1—96.5%
CritPt—30%
Chess Puzzles—54%
LMArena Hard Prompts—1467
Mystery Game Puzzles—35%
LMCA—55%
Surface Evolver Bench—83.8%

Math GPT-5.6 Terra leads

Claude 2: 8.7 (#314), GPT-5.6 Terra: 81.5 (#10)

BenchmarkClaude 2GPT-5.6 Terra
OTIS Mock AIME 2024-20252.5%99.7%
FrontierMath (Tiers 1-3)—86%
FrontierMath Tier 4—70.7%
ProofBench—74%
LMArena Math—1463
MATH Level 511.7%—

Knowledge GPT-5.6 Terra leads

Claude 2: 17.0 (#282), GPT-5.6 Terra: 61.3 (#27)

BenchmarkClaude 2GPT-5.6 Terra
GPQA Diamond34.7%93.3%
SimpleQA Verified—43.2%
LMArena Expert—1492
MMLU78.5%—
TriviaQA87.5%—

Multimodal Not comparable

Claude 2: —, GPT-5.6 Terra: 47.5 (#10)

BenchmarkClaude 2GPT-5.6 Terra
LMArena Vision—1271
Blueprint-Bench 2—30.8%
Furniture Assembly—54.2%
LMArena Document—1472

Multilingual Not comparable

Claude 2: —, GPT-5.6 Terra: 54.5 (#42)

BenchmarkClaude 2GPT-5.6 Terra
LMArena Non-English—1439
LMArena Chinese—1514
LMArena French—1476
LMArena German—1462
LMArena Japanese—1446
LMArena Korean—1420
LMArena Russian—1450
LMArena Spanish—1455

Instruction Following Not comparable

Claude 2: —, GPT-5.6 Terra: 76.6 (#38)

BenchmarkClaude 2GPT-5.6 Terra
LMArena Instruction Following—1453

Long Context Not comparable

Claude 2: —, GPT-5.6 Terra: 44.4 (#64)

BenchmarkClaude 2GPT-5.6 Terra
LMArena Longer Query—1452

Writing & Preference Not comparable

Claude 2: —, GPT-5.6 Terra: 70.4 (#21)

BenchmarkClaude 2GPT-5.6 Terra
LMArena Text—1446
LMArena Creative Writing—1411
EQ-Bench Creative Writing—1855
EQ-Bench 4—1234
LMArena Multi-Turn—1451

Frequently asked questions

Is Claude 2 better than GPT-5.6 Terra?

GPT-5.6 Terra is the stronger model overall, scoring 59.1 to 24.7 on the Noometry Index.

How many benchmarks do Claude 2 and GPT-5.6 Terra share?

4 benchmarks have published results for both models. Claude 2 has 8 scored results on Noometry and GPT-5.6 Terra has 52.

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