Noometry

Model comparison

GPT-5.5 Instant vs Phi 3 Mini 4k Instruct

GPT-5.5 Instant is the stronger model overall, scoring 42.7 to 27.9 on the Noometry Index.

Last verified . 18 shared benchmarks.

GPT-5.5 Instant OpenAI

42.7

Rank #110 Confirmed

Phi 3 Mini 4k Instruct Microsoft

27.9

Rank #328 Confirmed

Summary

  • They share 18 benchmarks with published results for both. GPT-5.5 Instant scores higher in 7 categories and Phi 3 Mini 4k Instruct in 1 category; 7 gaps are clear of the uncertainty.
  • The widest gap is in writing & preference, where GPT-5.5 Instant leads 61.8 to 27.6.
  • The biggest single-benchmark swing is Chess Puzzles: 12% for GPT-5.5 Instant and 0% for Phi 3 Mini 4k Instruct.
  • Phi 3 Mini 4k Instruct has downloadable open weights; the other is API-only.

Side by side

GPT-5.5 InstantPhi 3 Mini 4k Instruct
ProviderOpenAIMicrosoft
Noometry Index42.727.9
Released2026-05-052024-04-23
WeightsProprietaryOpen
Context window——
Max output——
Input $ / M tokens——
Output $ / M tokens——
Results tracked2735

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Category by category

Coding GPT-5.5 Instant leads

GPT-5.5 Instant: 44.3 (#74), Phi 3 Mini 4k Instruct: 26.6 (#323)

BenchmarkGPT-5.5 InstantPhi 3 Mini 4k Instruct
LMArena Coding14331093
SciCode48.6%—
LiveBench Coding—15.5%
HumanEval+—59.1%
MBPP+—54.2%

Reasoning GPT-5.5 Instant leads

GPT-5.5 Instant: 24.9 (#155), Phi 3 Mini 4k Instruct: 14.1 (#328)

BenchmarkGPT-5.5 InstantPhi 3 Mini 4k Instruct
Chess Puzzles12%0%
LMArena Hard Prompts14261072
CritPt0%—
LiveBench Reasoning—26.8%
LiveBench Data Analysis—34.7%
Adversarial NLI—52.8%
BIG-Bench Hard—71.7%
Epoch Capabilities Index142.52—
HellaSwag—76.7%
LiveBench—22.4%
WinoGrande—70.8%

Math Too close to call

GPT-5.5 Instant: 26.5 (#259), Phi 3 Mini 4k Instruct: 26.6 (#257)

BenchmarkGPT-5.5 InstantPhi 3 Mini 4k Instruct
LMArena Math14201111
FrontierMath (Tiers 1-3)26.3%—
FrontierMath Tier 42.4%—
OTIS Mock AIME 2024-202568.1%—
LiveBench Math—15.7%

Knowledge GPT-5.5 Instant leads

GPT-5.5 Instant: 48.9 (#74), Phi 3 Mini 4k Instruct: 28.5 (#246)

BenchmarkGPT-5.5 InstantPhi 3 Mini 4k Instruct
LMArena Expert14091045
GPQA Diamond82.5%—
ARC (AI2) Challenge—84.9%
MMLU—68.8%
OpenBookQA—88%
TriviaQA—64%

Multimodal Not comparable

GPT-5.5 Instant: 40.0 (#52), Phi 3 Mini 4k Instruct: —

BenchmarkGPT-5.5 InstantPhi 3 Mini 4k Instruct
LMArena Vision1250—
LMArena Document1403—

Multilingual GPT-5.5 Instant leads

GPT-5.5 Instant: 52.8 (#80), Phi 3 Mini 4k Instruct: 26.3 (#280)

BenchmarkGPT-5.5 InstantPhi 3 Mini 4k Instruct
LMArena Non-English14171021
LMArena Chinese14561021
LMArena French14281076
LMArena German14111044
LMArena Japanese1408935
LMArena Korean1392905
LMArena Russian14311022
LMArena Spanish14291085

Instruction Following GPT-5.5 Instant leads

GPT-5.5 Instant: 74.2 (#100), Phi 3 Mini 4k Instruct: 47.7 (#303)

BenchmarkGPT-5.5 InstantPhi 3 Mini 4k Instruct
LMArena Instruction Following14061053
LiveBench Instruction Following—39.1%

Long Context GPT-5.5 Instant leads

GPT-5.5 Instant: 43.4 (#96), Phi 3 Mini 4k Instruct: 31.7 (#276)

BenchmarkGPT-5.5 InstantPhi 3 Mini 4k Instruct
LMArena Longer Query14221044

Writing & Preference GPT-5.5 Instant leads

GPT-5.5 Instant: 61.8 (#85), Phi 3 Mini 4k Instruct: 27.6 (#300)

BenchmarkGPT-5.5 InstantPhi 3 Mini 4k Instruct
LMArena Text14191073
LMArena Creative Writing14191037
LMArena Multi-Turn14331018
LiveBench Language—9.2%

Frequently asked questions

Is GPT-5.5 Instant better than Phi 3 Mini 4k Instruct?

GPT-5.5 Instant is the stronger model overall, scoring 42.7 to 27.9 on the Noometry Index.

Is GPT-5.5 Instant or Phi 3 Mini 4k Instruct better for coding?

GPT-5.5 Instant scores higher on coding benchmarks: 44.3 versus 26.6 in the Noometry coding category.

How many benchmarks do GPT-5.5 Instant and Phi 3 Mini 4k Instruct share?

18 benchmarks have published results for both models. GPT-5.5 Instant has 27 scored results on Noometry and Phi 3 Mini 4k Instruct has 35.

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