Noometry

Model comparison

GPT-5.5 Instant vs Trinity Large Thinking

GPT-5.5 Instant is the stronger model overall, scoring 42.7 to 38.6 on the Noometry Index.

Last verified . 19 shared benchmarks.

GPT-5.5 Instant OpenAI

42.7

Rank #110 Confirmed

Trinity Large Thinking Arcee AI

38.6

Rank #185 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 math, where Trinity Large Thinking leads 37.6 to 26.5.
  • 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 Index42.738.6
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: 44.3 (#74), Trinity Large Thinking: 34.1 (#244)

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: 24.9 (#155), Trinity Large Thinking: 16.9 (#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 Index142.52—

Math Trinity Large Thinking leads

GPT-5.5 Instant: 26.5 (#259), Trinity Large Thinking: 37.6 (#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 (#74), Trinity Large Thinking: 40.9 (#113)

BenchmarkGPT-5.5 InstantTrinity Large Thinking
LMArena Expert14091360
GPQA Diamond82.5%—
Vectara Hallucination Rate—6.9%

Multimodal Not comparable

GPT-5.5 Instant: 40.0 (#52), Trinity Large Thinking: —

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

Multilingual GPT-5.5 Instant leads

GPT-5.5 Instant: 52.8 (#80), Trinity Large Thinking: 46.2 (#160)

BenchmarkGPT-5.5 InstantTrinity Large Thinking
LMArena Non-English14171325
LMArena Chinese14561373
LMArena French14281374
LMArena German14111356
LMArena Japanese14081311
LMArena Korean13921306
LMArena Russian14311337
LMArena Spanish14291357

Instruction Following GPT-5.5 Instant leads

GPT-5.5 Instant: 74.2 (#100), Trinity Large Thinking: 70.5 (#162)

BenchmarkGPT-5.5 InstantTrinity Large Thinking
LMArena Instruction Following14061334

Long Context GPT-5.5 Instant leads

GPT-5.5 Instant: 43.4 (#96), Trinity Large Thinking: 41.3 (#144)

BenchmarkGPT-5.5 InstantTrinity Large Thinking
LMArena Longer Query14221355

Writing & Preference GPT-5.5 Instant leads

GPT-5.5 Instant: 61.8 (#85), Trinity Large Thinking: 53.8 (#158)

BenchmarkGPT-5.5 InstantTrinity Large Thinking
LMArena Text14191340
LMArena Creative Writing14191320
LMArena Multi-Turn14331342

Frequently asked questions

Is GPT-5.5 Instant better than Trinity Large Thinking?

GPT-5.5 Instant is the stronger model overall, scoring 42.7 to 38.6 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: 44.3 versus 34.1 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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