#188 Step 3.5 Flash
none- Cost
- $0.005
- Time
- 156.3s
- Tokens
- 13,887 tok
Stepfun
Release: 2026-02-01
Tested on: 2026-05-08 15:30
stepfun/step-3.5-flash::none
(medium)
(none)
Summary
Step 3.5 Flash scores 2.6 on AI BENCHY and ranks #188. It has 10.0 reliability, a 28.6% pass rate, $0.020 total cost, and 39.03s average response time.
What makes Step 3.5 Flash unique: Its total benchmark cost is unusually low for its score range.
Archived model: this model is no longer updated or tested on new tests.
2.6
Consistency
5.7
10.0
$0.020
Total Output Tokens
64,795
Total Input Tokens
1,971
Input Price
$0.100 / 1M
Output Price
$0.300 / 1M
Flaky tests
0
Flaky tests had mixed outcomes across runs (at least one pass and one fail).
Generation showcase
Hamster playing table tennis
Prompt: Create a detailed SVG illustration of a hamster playing table tennis.
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 | Current run | |
| 2026-04-11 01:44 First recorded run | 3.0 | N/A | $0.000 | Compare |
This run used a different benchmark suite. Keep suite changes in mind when reading historical movement.
Run comparison
| Run | Score | Consistency | Reliability | Tests Correct | Flaky tests | Total Output Tokens | Total Input Tokens | Total Cost | Response Time (avg) |
|---|---|---|---|---|---|---|---|---|---|
| 2026-05-08 15:30 · Current run | 2.6 | 5.7 | 10.0 | 6/12 | 0 | 64,795 | 1,971 | $0.020 | 39.03s |
| 2026-04-11 01:44 · First recorded run | 3.0 | 10.0 | N/A | 0/1 | 0 | 0 | 0 | $0.000 | 0ms |
| Difference | -0.4 | -4.3 | +6 | 0 | +64795 | +1971 | +$0.020 | +39032ms |
These two runs used different benchmark suites, so the deltas reflect both model changes and suite changes.
Price History
Historical pricing data for this model from OpenRouter.
| Date | Input Price | Output Price |
|---|---|---|
| 2026-06-04 15:40 | $0.090 / 1M | $0.300 / 1M |
| 2026-06-30 21:25 | $0.100 / 1M | $0.300 / 1M |
Charts
Choose the first model, then click a second model to open a side-by-side page.
Top Models by Score
Score vs Total Cost
Response Time (avg)
Score vs Response Time (avg)
Total Output Tokens
Score vs Total Output Tokens
Quick Compare
Category Breakdown
| Category | Score | Consistency | Tests Correct |
|---|---|---|---|
| Anti-AI Tricks | 10.0 | 10.0 | |
| Coding | 9.8 | 3.3 | |
| Combined | 3.0 | 10.0 | |
| Data parsing and extraction | 1.5 | 5.0 | |
| Domain specific | 3.3 | 3.3 | |
| General Intelligence | 4.0 | 10.0 | |
| Instructions following | 5.0 | 5.0 | |
| Puzzle Solving | 0.0 | 0.0 | |
| Tool Calling | 3.0 | 10.0 | |
| Trivia | 3.0 | 10.0 |