Model comparison

GPT-5.6 Terra vs Olmo 3.1 32b Think

GPT-5.6 Terra is the stronger model overall, scoring 59.2 to 37.9 on the Noometry Index.

Last verified . 15 shared benchmarks.

GPT-5.6 Terra OpenAI

59.2

Rank #17 Confirmed

Summary

  • They share 15 benchmarks with published results for both. GPT-5.6 Terra scores higher in 8 categories and Olmo 3.1 32b Think in 0 categories; 8 gaps are clear of the uncertainty.
  • The widest gap is in math, where GPT-5.6 Terra leads 81.6 to 36.3.
  • Olmo 3.1 32b Think has downloadable open weights; the other is API-only.

Side by side

GPT-5.6 Terra and Olmo 3.1 32b Think specifications
GPT-5.6 TerraOlmo 3.1 32b Think
ProviderOpenAIAllen Institute for AI (Ai2)
Noometry Index59.237.9
Released2026-07-09—
WeightsProprietaryOpen
Context window1.05M—
Max output128K—
Input $ / M tokens$2—
Output $ / M tokens$12—
Results tracked5215

Sponsored placements are available on pages like this one. Advertise on Noometry

Category by category

Coding GPT-5.6 Terra leads

GPT-5.6 Terra: 57.7 (#19), Olmo 3.1 32b Think: 37.7 (#189)

Coding benchmarks
BenchmarkGPT-5.6 TerraOlmo 3.1 32b Think
LMArena Coding14841291
DeepSWE69.6%—
FrontierCode41.3%—
CursorBench41.3%—
LMArena WebDev1522—
SciCode55%—
WeirdML78.3%—
ALE-Bench1,951—

Agentic & Tool Use Not comparable

GPT-5.6 Terra: 40.1 (#25), Olmo 3.1 32b Think: —

Agentic & Tool Use benchmarks
BenchmarkGPT-5.6 TerraOlmo 3.1 32b Think
APEX-Agents58.2%—
BALROG53.2%—
GDP.pdf24.7%—
Vending-Bench 27,343—

Reasoning GPT-5.6 Terra leads

GPT-5.6 Terra: 60.7 (#21), Olmo 3.1 32b Think: 25.2 (#150)

Reasoning benchmarks
BenchmarkGPT-5.6 TerraOlmo 3.1 32b Think
LMArena Hard Prompts14681272
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 Index159.62—

Math GPT-5.6 Terra leads

GPT-5.6 Terra: 81.6 (#12), Olmo 3.1 32b Think: 36.3 (#168)

Math benchmarks
BenchmarkGPT-5.6 TerraOlmo 3.1 32b Think
LMArena Math14661305
FrontierMath (Tiers 1-3)86%—
FrontierMath Tier 470.7%—
OTIS Mock AIME 2024-202599.7%—
ProofBench74%—

Knowledge GPT-5.6 Terra leads

GPT-5.6 Terra: 61.2 (#30), Olmo 3.1 32b Think: 35.7 (#181)

Knowledge benchmarks
BenchmarkGPT-5.6 TerraOlmo 3.1 32b Think
LMArena Expert14921295
GPQA Diamond93.3%—
SimpleQA Verified43.2%—

Multimodal Not comparable

GPT-5.6 Terra: 47.3 (#11), Olmo 3.1 32b Think: —

Multimodal benchmarks
BenchmarkGPT-5.6 TerraOlmo 3.1 32b Think
LMArena Vision1271—
Blueprint-Bench 230.8%—
Furniture Assembly54.2%—
LMArena Document1472—

Multilingual GPT-5.6 Terra leads

GPT-5.6 Terra: 54.4 (#44), Olmo 3.1 32b Think: 38.1 (#231)

Multilingual benchmarks
BenchmarkGPT-5.6 TerraOlmo 3.1 32b Think
LMArena Non-English14391209
LMArena Chinese15131242
LMArena French14711260
LMArena German14601262
LMArena Russian14501193
LMArena Spanish14481289
LMArena Japanese1457—
LMArena Korean1425—

Instruction Following GPT-5.6 Terra leads

GPT-5.6 Terra: 76.4 (#40), Olmo 3.1 32b Think: 65.6 (#218)

Instruction Following benchmarks
BenchmarkGPT-5.6 TerraOlmo 3.1 32b Think
LMArena Instruction Following14541247

Long Context GPT-5.6 Terra leads

GPT-5.6 Terra: 44.4 (#68), Olmo 3.1 32b Think: 38.6 (#195)

Long Context benchmarks
BenchmarkGPT-5.6 TerraOlmo 3.1 32b Think
LMArena Longer Query14511272

Writing & Preference GPT-5.6 Terra leads

GPT-5.6 Terra: 70.2 (#23), Olmo 3.1 32b Think: 46.2 (#220)

Writing & Preference benchmarks
BenchmarkGPT-5.6 TerraOlmo 3.1 32b Think
LMArena Text14471272
LMArena Creative Writing14101226
LMArena Multi-Turn14491252
EQ-Bench Creative Writing1855—
EQ-Bench 41234—

Frequently asked questions

Is GPT-5.6 Terra better than Olmo 3.1 32b Think?

GPT-5.6 Terra is the stronger model overall, scoring 59.2 to 37.9 on the Noometry Index.

Is GPT-5.6 Terra or Olmo 3.1 32b Think better for coding?

GPT-5.6 Terra scores higher on coding benchmarks: 57.7 versus 37.7 in the Noometry coding category.

How many benchmarks do GPT-5.6 Terra and Olmo 3.1 32b Think share?

15 benchmarks have published results for both models. GPT-5.6 Terra has 52 scored results on Noometry and Olmo 3.1 32b Think has 15.

Related comparisons

Go deeper