Model comparison

Phi 3 Medium 4k Instruct vs Step 3.7 Flash

Step 3.7 Flash is the stronger model overall, scoring 37.3 to 33.0 on the Noometry Index.

Last verified . 0 shared benchmarks.

Phi 3 Medium 4k Instruct Microsoft

33.0

Rank #250 Confirmed

Step 3.7 Flash StepFun

37.3

Rank #207 Reported

Summary

  • The widest gap is in math, where Step 3.7 Flash leads 42.9 to 33.4.

Side by side

Phi 3 Medium 4k Instruct and Step 3.7 Flash specifications
Phi 3 Medium 4k InstructStep 3.7 Flash
ProviderMicrosoftStepFun
Noometry Index33.037.3
Released—2026-05-29
WeightsOpenOpen
Context window—256K
Max output—256K
Input $ / M tokens—$0.18
Output $ / M tokens—$1.11
Results tracked175

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Category by category

Coding Step 3.7 Flash leads

Phi 3 Medium 4k Instruct: 32.9 (#268), Step 3.7 Flash: 40.0 (#150)

Coding benchmarks
BenchmarkPhi 3 Medium 4k InstructStep 3.7 Flash
SciCode—40%
LMArena Coding1130—
ALE-Bench—694.12

Reasoning Too close to call

Phi 3 Medium 4k Instruct: 21.7 (#214), Step 3.7 Flash: 21.6 (#219)

Reasoning benchmarks
BenchmarkPhi 3 Medium 4k InstructStep 3.7 Flash
NYT Connections (extended)—39.7%
CritPt—2.3%
LMArena Hard Prompts1127—

Math Step 3.7 Flash leads

Phi 3 Medium 4k Instruct: 33.4 (#202), Step 3.7 Flash: 42.9 (#82)

Math benchmarks
BenchmarkPhi 3 Medium 4k InstructStep 3.7 Flash
MathArena Final-Answer Competitions—68.5%
LMArena Math1173—

Knowledge Not comparable

Phi 3 Medium 4k Instruct: 30.2 (#229), Step 3.7 Flash: —

Knowledge benchmarks
BenchmarkPhi 3 Medium 4k InstructStep 3.7 Flash
LMArena Expert1108—

Multilingual Not comparable

Phi 3 Medium 4k Instruct: 30.6 (#263), Step 3.7 Flash: —

Multilingual benchmarks
BenchmarkPhi 3 Medium 4k InstructStep 3.7 Flash
LMArena Non-English1094—
LMArena Chinese1108—
LMArena French1110—
LMArena German1101—
LMArena Japanese1042—
LMArena Korean954—
LMArena Russian1145—
LMArena Spanish1095—

Instruction Following Not comparable

Phi 3 Medium 4k Instruct: 57.6 (#268), Step 3.7 Flash: —

Instruction Following benchmarks
BenchmarkPhi 3 Medium 4k InstructStep 3.7 Flash
LMArena Instruction Following1113—

Long Context Not comparable

Phi 3 Medium 4k Instruct: 34.0 (#255), Step 3.7 Flash: —

Long Context benchmarks
BenchmarkPhi 3 Medium 4k InstructStep 3.7 Flash
LMArena Longer Query1120—

Writing & Preference Not comparable

Phi 3 Medium 4k Instruct: 34.1 (#272), Step 3.7 Flash: —

Writing & Preference benchmarks
BenchmarkPhi 3 Medium 4k InstructStep 3.7 Flash
LMArena Text1138—
LMArena Creative Writing1107—
LMArena Multi-Turn1088—

Frequently asked questions

Is Phi 3 Medium 4k Instruct better than Step 3.7 Flash?

Step 3.7 Flash is the stronger model overall, scoring 37.3 to 33.0 on the Noometry Index.

Is Phi 3 Medium 4k Instruct or Step 3.7 Flash better for coding?

Step 3.7 Flash scores higher on coding benchmarks: 40.0 versus 32.9 in the Noometry coding category.

How many benchmarks do Phi 3 Medium 4k Instruct and Step 3.7 Flash share?

0 benchmarks have published results for both models. Phi 3 Medium 4k Instruct has 17 scored results on Noometry and Step 3.7 Flash has 5.

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