#108

Step 3.5 Flash

Stepfun Release: 2026-02-01 Tested on: 2026-04-11 01:44 stepfun/step-3.5-flash::none

(medium) (none)

Summary

Step 3.5 Flash scores 3.0 on AI BENCHY and ranks #108. It has N/A reliability, a 0.0% pass rate, $0.000 total cost, and 0ms average response time.

What makes Step 3.5 Flash unique: Its total benchmark cost is unusually low for its score range. It is notably fast compared with similar models.

Archived model: this model is no longer updated or tested on new tests.

Score

3.0

Consistency

10.0

Reliability

N/A

Total Cost (Current Price)

$0.000

Total Output Tokens

Total Input Tokens

Input Price

$0.100 / 1M

Output Price

$0.300 / 1M

Tests Correct

Wrong Tests: 1

Attempt pass rate: 0.0%

Flaky tests

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

Response Time (avg)

0ms

Response Time (max): 0ms

Response Time (total): 0ms

API error: 1

Generation showcase

Hamster playing table tennis

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

#108 Step 3.5 Flash

none

Cost: $0.005
Time: 156.3s
Tokens: 13,887 tok

Run history

Tested on	Score	Reliability	Tests Correct	Total Cost	Compare
2026-05-08 15:30 New test added	6.6	10.0		$0.020	Compare
2026-04-11 01:44 First recorded run	3.0	N/A		$0.000	Current run

Run comparison

Run	Score	Consistency	Reliability	Tests Correct	Total Output Tokens	Total Input Tokens	Total Cost	Response Time (avg)
2026-04-11 01:44 · First recorded run	3.0	10.0	N/A	0/1	0	0	$0.000	0ms
2026-05-08 15:30 · New test added	6.6	10.0	10.0	6/12	64,795	1,971	$0.020	39.03s
Difference	-3.6	0.0		-6	-64795	-1971	-$0.020	-39032ms