Model comparison

GPT-5.6 Terra vs Laguna M.1

GPT-5.6 Terra is the stronger model overall, scoring 59.2 to 32.5 on the Noometry Index.

Last verified . 3 shared benchmarks.

GPT-5.6 Terra OpenAI

59.2

Rank #17 Confirmed

Laguna M.1 Poolside

32.5

Rank #256 Reported

Summary

  • They share 3 benchmarks with published results for both. GPT-5.6 Terra scores higher in 3 categories and Laguna M.1 in 0 categories; 3 gaps are clear of the uncertainty.
  • The widest gap is in math, where GPT-5.6 Terra leads 81.6 to 21.1.
  • The biggest single-benchmark swing is ProofBench: 74% for GPT-5.6 Terra and 0% for Laguna M.1.
  • GPT-5.6 Terra accepts more context: 1.05M tokens versus 262K.
  • Laguna M.1 has downloadable open weights; the other is API-only.

Side by side

GPT-5.6 Terra and Laguna M.1 specifications
GPT-5.6 TerraLaguna M.1
ProviderOpenAIPoolside
Noometry Index59.232.5
Released2026-07-092026-04-28
WeightsProprietaryOpen
Context window1.05M262K
Max output128K33K
Input $ / M tokens$2—
Output $ / M tokens$12—
Results tracked523

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), Laguna M.1: 36.6 (#204)

Coding benchmarks
BenchmarkGPT-5.6 TerraLaguna M.1
LMArena WebDev15221349
DeepSWE69.6%—
FrontierCode41.3%—
CursorBench41.3%—
SciCode55%—
WeirdML78.3%—
LMArena Coding1484—
ALE-Bench1,951—

Agentic & Tool Use Not comparable

GPT-5.6 Terra: 40.1 (#25), Laguna M.1: —

Agentic & Tool Use benchmarks
BenchmarkGPT-5.6 TerraLaguna M.1
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), Laguna M.1: 23.1 (#184)

Reasoning benchmarks
BenchmarkGPT-5.6 TerraLaguna M.1
Surface Evolver Bench83.8%15.6%
ARC-AGI-283.9%—
SimpleBench48.9%—
Kagi LLM Benchmark51.3%—
NYT Connections (extended)78.4%—
ARC-AGI-196.5%—
CritPt30%—
Chess Puzzles54%—
LMArena Hard Prompts1468—
Mystery Game Puzzles35%—
DTBench93.3%—
LMCA55%—
Epoch Capabilities Index159.62—

Math GPT-5.6 Terra leads

GPT-5.6 Terra: 81.6 (#12), Laguna M.1: 21.1 (#283)

Math benchmarks
BenchmarkGPT-5.6 TerraLaguna M.1
ProofBench74%0%
FrontierMath (Tiers 1-3)86%—
FrontierMath Tier 470.7%—
OTIS Mock AIME 2024-202599.7%—
LMArena Math1466—

Knowledge Not comparable

GPT-5.6 Terra: 61.2 (#30), Laguna M.1: —

Knowledge benchmarks
BenchmarkGPT-5.6 TerraLaguna M.1
GPQA Diamond93.3%—
SimpleQA Verified43.2%—
LMArena Expert1492—

Multimodal Not comparable

GPT-5.6 Terra: 47.3 (#11), Laguna M.1: —

Multimodal benchmarks
BenchmarkGPT-5.6 TerraLaguna M.1
LMArena Vision1271—
Blueprint-Bench 230.8%—
Furniture Assembly54.2%—
LMArena Document1472—

Multilingual Not comparable

GPT-5.6 Terra: 54.4 (#44), Laguna M.1: —

Multilingual benchmarks
BenchmarkGPT-5.6 TerraLaguna M.1
LMArena Non-English1439—
LMArena Chinese1513—
LMArena French1471—
LMArena German1460—
LMArena Japanese1457—
LMArena Korean1425—
LMArena Russian1450—
LMArena Spanish1448—

Instruction Following Not comparable

GPT-5.6 Terra: 76.4 (#40), Laguna M.1: —

Instruction Following benchmarks
BenchmarkGPT-5.6 TerraLaguna M.1
LMArena Instruction Following1454—

Long Context Not comparable

GPT-5.6 Terra: 44.4 (#68), Laguna M.1: —

Long Context benchmarks
BenchmarkGPT-5.6 TerraLaguna M.1
LMArena Longer Query1451—

Writing & Preference Not comparable

GPT-5.6 Terra: 70.2 (#23), Laguna M.1: —

Writing & Preference benchmarks
BenchmarkGPT-5.6 TerraLaguna M.1
LMArena Text1447—
LMArena Creative Writing1410—
EQ-Bench Creative Writing1855—
EQ-Bench 41234—
LMArena Multi-Turn1449—

Frequently asked questions

Is GPT-5.6 Terra better than Laguna M.1?

GPT-5.6 Terra is the stronger model overall, scoring 59.2 to 32.5 on the Noometry Index.

Is GPT-5.6 Terra or Laguna M.1 better for coding?

GPT-5.6 Terra scores higher on coding benchmarks: 57.7 versus 36.6 in the Noometry coding category.

Which has the bigger context window?

GPT-5.6 Terra does, with 1.05M tokens against 262K.

How many benchmarks do GPT-5.6 Terra and Laguna M.1 share?

3 benchmarks have published results for both models. GPT-5.6 Terra has 52 scored results on Noometry and Laguna M.1 has 3.

Related comparisons

Go deeper