Model comparison

GPT-5.6 Terra vs Wizardlm 13b

GPT-5.6 Terra is the stronger model overall, scoring 59.1 to 30.8 on the Noometry Index.

Last verified . 10 shared benchmarks.

GPT-5.6 Terra OpenAI

59.1

Rank #15 Confirmed

Wizardlm 13b Microsoft

30.8

Rank #272 Confirmed

Summary

  • They share 10 benchmarks with published results for both. GPT-5.6 Terra scores higher in 7 categories and Wizardlm 13b in 0 categories; 7 gaps are clear of the uncertainty.
  • The widest gap is in math, where GPT-5.6 Terra leads 81.5 to 27.8.
  • Wizardlm 13b has downloadable open weights; the other is API-only.

Side by side

GPT-5.6 Terra and Wizardlm 13b specifications
GPT-5.6 TerraWizardlm 13b
ProviderOpenAIMicrosoft
Noometry Index59.130.8
Released2026-07-09—
WeightsProprietaryOpen
Context window1.05M—
Max output128K—
Input $ / M tokens$2—
Output $ / M tokens$12—
Results tracked5210

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Category by category

Coding GPT-5.6 Terra leads

GPT-5.6 Terra: 57.1 (#16), Wizardlm 13b: 29.6 (#293)

Coding benchmarks
BenchmarkGPT-5.6 TerraWizardlm 13b
LMArena Coding14841035
DeepSWE69.6%—
FrontierCode41.3%—
CursorBench41.3%—
LMArena WebDev1520—
SciCode55%—
WeirdML78.3%—
ALE-Bench1,951—

Agentic & Tool Use Not comparable

GPT-5.6 Terra: 40.2 (#23), Wizardlm 13b: —

Agentic & Tool Use benchmarks
BenchmarkGPT-5.6 TerraWizardlm 13b
APEX-Agents58.2%—
BALROG53.2%—
GDP.pdf24.7%—
Vending-Bench 27,343—

Reasoning GPT-5.6 Terra leads

GPT-5.6 Terra: 60.6 (#19), Wizardlm 13b: 18.5 (#265)

Reasoning benchmarks
BenchmarkGPT-5.6 TerraWizardlm 13b
LMArena Hard Prompts14671018
ARC-AGI-283.9%—
SimpleBench48.9%—
Kagi LLM Benchmark51.3%—
NYT Connections (extended)78.4%—
ARC-AGI-196.5%—
CritPt30%—
Chess Puzzles54%—
Mystery Game Puzzles35%—
DTBench93.3%—
LMCA55%—
Surface Evolver Bench83.8%—
Epoch Capabilities Index159.31—

Math GPT-5.6 Terra leads

GPT-5.6 Terra: 81.5 (#10), Wizardlm 13b: 27.8 (#235)

Math benchmarks
BenchmarkGPT-5.6 TerraWizardlm 13b
LMArena Math14631017
FrontierMath (Tiers 1-3)86%—
FrontierMath Tier 470.7%—
OTIS Mock AIME 2024-202599.7%—
ProofBench74%—

Knowledge Not comparable

GPT-5.6 Terra: 61.3 (#27), Wizardlm 13b: —

Knowledge benchmarks
BenchmarkGPT-5.6 TerraWizardlm 13b
GPQA Diamond93.3%—
SimpleQA Verified43.2%—
LMArena Expert1492—

Multimodal Not comparable

GPT-5.6 Terra: 47.5 (#10), Wizardlm 13b: —

Multimodal benchmarks
BenchmarkGPT-5.6 TerraWizardlm 13b
LMArena Vision1271—
Blueprint-Bench 230.8%—
Furniture Assembly54.2%—
LMArena Document1472—

Multilingual GPT-5.6 Terra leads

GPT-5.6 Terra: 54.5 (#42), Wizardlm 13b: 27.3 (#272)

Multilingual benchmarks
BenchmarkGPT-5.6 TerraWizardlm 13b
LMArena Non-English14391034
LMArena Chinese15141023
LMArena French1476—
LMArena German1462—
LMArena Japanese1446—
LMArena Korean1420—
LMArena Russian1450—
LMArena Spanish1455—

Instruction Following GPT-5.6 Terra leads

GPT-5.6 Terra: 76.6 (#38), Wizardlm 13b: 53.7 (#280)

Instruction Following benchmarks
BenchmarkGPT-5.6 TerraWizardlm 13b
LMArena Instruction Following14531049

Long Context GPT-5.6 Terra leads

GPT-5.6 Terra: 44.4 (#64), Wizardlm 13b: 32.0 (#268)

Long Context benchmarks
BenchmarkGPT-5.6 TerraWizardlm 13b
LMArena Longer Query14521054

Writing & Preference GPT-5.6 Terra leads

GPT-5.6 Terra: 70.4 (#21), Wizardlm 13b: 30.7 (#282)

Writing & Preference benchmarks
BenchmarkGPT-5.6 TerraWizardlm 13b
LMArena Text14461077
LMArena Creative Writing14111090
LMArena Multi-Turn14511047
EQ-Bench Creative Writing1855—
EQ-Bench 41234—

Frequently asked questions

Is GPT-5.6 Terra better than Wizardlm 13b?

GPT-5.6 Terra is the stronger model overall, scoring 59.1 to 30.8 on the Noometry Index.

Is GPT-5.6 Terra or Wizardlm 13b better for coding?

GPT-5.6 Terra scores higher on coding benchmarks: 57.1 versus 29.6 in the Noometry coding category.

How many benchmarks do GPT-5.6 Terra and Wizardlm 13b share?

10 benchmarks have published results for both models. GPT-5.6 Terra has 52 scored results on Noometry and Wizardlm 13b has 10.

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