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uxwizz.com
#61

Step 3.7 Flash

Stepfun Release: 2026-05-29 Tested on: 2026-08-14 02:31 stepfun/step-3.7-flash::medium
198B total (11B active)MoEOpen source
(high) (medium) (low)

Summary

Step 3.7 Flash scores 7.9 on AI BENCHY and ranks #61. It has 10.0 reliability, a 68.2% pass rate, $0.495 total cost, and 23.51s average response time.

What makes Step 3.7 Flash unique: It stands out most in Coding, where it ranks #4, while General Intelligence is its weakest area at #17.

Model facts

Researched on 2026-08-12

Reported
Parameters
198B total (11B active)
Architecture
MoE
Availability
Open source
License
Apache-2.0

Includes the vendor-reported vision component in the total.

Parameter source Availability source

Score

7.9

Consistency

8.9

Reliability

10.0

Total Cost (Current Price)

$0.495

Total Output Tokens

409,709

Total Input Tokens

114,191

Input Price

$0.200 / 1M

Output Price

$1.150 / 1M

Tests Correct

Wrong Tests: 9

Attempt pass rate: 68.2%

Flaky tests

3

Flaky tests had mixed outcomes across runs (at least one pass and one fail).

Response Time (avg)

23.51s

Response Time (max): 152.83s

Response Time (total): 517.21s

Wrong answer: 6 Did not follow instructions: 1 Invalid tool call: 1 No answer: 1

Hamster playing table tennis

Prompt: Create a detailed SVG illustration of a hamster playing table tennis.

#61 Step 3.7 Flash

medium
Cost
$0.006
Time
46.2s
Tokens
4,466 tok

Run history

Tested on Score Reliability Tests Correct Total Cost Compare
2026-08-14 02:31 Re-test 7.9 10.0 $0.495 Current run
2026-07-16 22:50 New test added 8.0 9.9 $0.515 Compare
2026-06-04 13:52 New test added 8.0 9.9 $0.376 Compare
2026-05-29 11:49 Initial run 7.9 9.9 $0.404 Compare

This run used a different benchmark suite. Keep suite changes in mind when reading historical movement.

Price History

Historical pricing data for this model from OpenRouter.

Date Input Price Output Price
2026-08-14 12:51 $0.200 / 1M $1.150 / 1M

Charts

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Total Output Tokens

Score vs Total Output Tokens

Quick Compare

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Category Breakdown

Category Score Consistency Tests Correct
Anti-AI Tricks 8.7 7.9
Coding 8.8 7.8
Combined 7.3 5.8
Data parsing and extraction 10.0 10.0
Domain specific 5.3 10.0
General Intelligence 4.0 10.0
Instructions following 9.8 10.0
Puzzle Solving 5.7 9.9
Tool Calling 10.0 10.0
Trivia 3.0 10.0

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