Noometry

Model comparison

GPT-5.5 Instant vs Trinity Large Thinking

GPT-5.5 Instant is the stronger model overall, scoring 42.5 to 38.1 on the Noometry Index.

Last verified . 19 shared benchmarks.

GPT-5.5 Instant OpenAI

42.5

Rank #99 Confirmed

Trinity Large Thinking Arcee AI

38.1

Rank #180 Confirmed

Summary

  • They share 19 benchmarks with published results for both. GPT-5.5 Instant scores higher in 7 categories and Trinity Large Thinking in 1 category; 8 gaps are clear of the uncertainty.
  • The widest gap is in coding, where GPT-5.5 Instant leads 43.7 to 33.8.
  • The biggest single-benchmark swing is SciCode: 48.6% for GPT-5.5 Instant and 36.1% for Trinity Large Thinking.
  • Trinity Large Thinking has downloadable open weights; the other is API-only.

Side by side

GPT-5.5 InstantTrinity Large Thinking
ProviderOpenAIArcee AI
Noometry Index42.538.1
Released2026-05-052026-04-01
WeightsProprietaryOpen
Context window—262K
Max output—80K
Input $ / M tokens—$0.25
Output $ / M tokens—$0.80
Results tracked2724

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Category by category

Coding GPT-5.5 Instant leads

GPT-5.5 Instant: 43.7 (#73), Trinity Large Thinking: 33.8 (#238)

BenchmarkGPT-5.5 InstantTrinity Large Thinking
SciCode48.6%36.1%
LMArena Coding14331381
LMArena WebDev—1238

Reasoning GPT-5.5 Instant leads

GPT-5.5 Instant: 24.2 (#149), Trinity Large Thinking: 16.3 (#298)

BenchmarkGPT-5.5 InstantTrinity Large Thinking
CritPt0%0.9%
LMArena Hard Prompts14261350
NYT Connections (extended)—16.5%
Chess Puzzles12%—
Thematic Generalization—41.6%
Surface Evolver Bench—15.6%
Epoch Capabilities Index142.48—

Math Trinity Large Thinking leads

GPT-5.5 Instant: 26.1 (#241), Trinity Large Thinking: 34.9 (#149)

BenchmarkGPT-5.5 InstantTrinity Large Thinking
LMArena Math14201366
FrontierMath (Tiers 1-3)26.3%—
FrontierMath Tier 42.4%—
OTIS Mock AIME 2024-202568.1%—

Knowledge GPT-5.5 Instant leads

GPT-5.5 Instant: 48.9 (#68), Trinity Large Thinking: 40.3 (#107)

BenchmarkGPT-5.5 InstantTrinity Large Thinking
LMArena Expert14091359
GPQA Diamond82.5%—
Vectara Hallucination Rate—6.9%

Multimodal Not comparable

GPT-5.5 Instant: 39.3 (#48), Trinity Large Thinking: —

BenchmarkGPT-5.5 InstantTrinity Large Thinking
LMArena Vision1250—
LMArena Document1403—

Multilingual GPT-5.5 Instant leads

GPT-5.5 Instant: 53.0 (#76), Trinity Large Thinking: 46.4 (#155)

BenchmarkGPT-5.5 InstantTrinity Large Thinking
LMArena Non-English14171325
LMArena Chinese14571372
LMArena French14281374
LMArena German14101356
LMArena Japanese14081312
LMArena Korean13931304
LMArena Russian14301338
LMArena Spanish14301356

Instruction Following GPT-5.5 Instant leads

GPT-5.5 Instant: 74.4 (#94), Trinity Large Thinking: 70.7 (#157)

BenchmarkGPT-5.5 InstantTrinity Large Thinking
LMArena Instruction Following14071334

Long Context GPT-5.5 Instant leads

GPT-5.5 Instant: 43.4 (#92), Trinity Large Thinking: 41.2 (#139)

BenchmarkGPT-5.5 InstantTrinity Large Thinking
LMArena Longer Query14221355

Writing & Preference GPT-5.5 Instant leads

GPT-5.5 Instant: 62.0 (#81), Trinity Large Thinking: 54.0 (#152)

BenchmarkGPT-5.5 InstantTrinity Large Thinking
LMArena Text14191340
LMArena Creative Writing14201321
LMArena Multi-Turn14341342

Frequently asked questions

Is GPT-5.5 Instant better than Trinity Large Thinking?

GPT-5.5 Instant is the stronger model overall, scoring 42.5 to 38.1 on the Noometry Index.

Is GPT-5.5 Instant or Trinity Large Thinking better for coding?

GPT-5.5 Instant scores higher on coding benchmarks: 43.7 versus 33.8 in the Noometry coding category.

How many benchmarks do GPT-5.5 Instant and Trinity Large Thinking share?

19 benchmarks have published results for both models. GPT-5.5 Instant has 27 scored results on Noometry and Trinity Large Thinking has 24.

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