AI BENCHY Compare
Inception: Mercury 2 vs StepFun: Step 3.5 Flash
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Last updated at: 2026-03-05
| Metric | Inception: Mercury 2 medium Release: 2026-02-24 | StepFun: Step 3.5 Flash medium Release: 2026-02-01 Free Available |
|---|---|---|
| Rank | #40 | #13 |
| Avg Score | 48 | 74 |
| Consistency | 83 | 94 |
| Cost per result | 0.726 | 0.000 |
| Total Cost | $0.044 | $0.000 |
| Tests Correct | ||
| Attempt pass rate | 51.1% | 68.9% |
| Flaky tests | 3 | 1 |
| Output Tokens | 3,571 | 69,238 |
| Reasoning Tokens | 45,379 | 152,563 |
Score vs Total Cost
Category Breakdown
| Anti-AI Tricks | Score | Consistency | Attempt pass rate | Flaky tests | Tests Correct | Output Tokens | Reasoning Tokens |
|---|---|---|---|---|---|---|---|
| Inception: Mercury 2 | 73 | 98 | 66.7% | 0 | 2,531 | 2,410 | |
| StepFun: Step 3.5 Flash | 100 | 100 | 100.0% | 0 | 13,924 | 17,208 |
| Combined | Score | Consistency | Attempt pass rate | Flaky tests | Tests Correct | Output Tokens | Reasoning Tokens |
|---|---|---|---|---|---|---|---|
| Inception: Mercury 2 | 100 | 100 | 100.0% | 0 | 268 | 4,887 | |
| StepFun: Step 3.5 Flash | 100 | 100 | 100.0% | 0 | 1,176 | 12,984 |
| Data parsing and extraction | Score | Consistency | Attempt pass rate | Flaky tests | Tests Correct | Output Tokens | Reasoning Tokens |
|---|---|---|---|---|---|---|---|
| Inception: Mercury 2 | 55 | 59 | 83.3% | 1 | 183 | 1,656 | |
| StepFun: Step 3.5 Flash | 100 | 100 | 100.0% | 0 | 600 | 13,886 |
| Domain specific | Score | Consistency | Attempt pass rate | Flaky tests | Tests Correct | Output Tokens | Reasoning Tokens |
|---|---|---|---|---|---|---|---|
| Inception: Mercury 2 | 100 | 72 | 11.1% | 1 | 41 | 30,754 | |
| StepFun: Step 3.5 Flash | 40 | 72 | 44.4% | 1 | 45,350 | 90,436 |
| Instructions following | Score | Consistency | Attempt pass rate | Flaky tests | Tests Correct | Output Tokens | Reasoning Tokens |
|---|---|---|---|---|---|---|---|
| Inception: Mercury 2 | 55 | 100 | 50.0% | 0 | 14 | 958 | |
| StepFun: Step 3.5 Flash | 85 | 100 | 50.0% | 0 | 2,284 | 3,412 |
| Puzzle Solving | Score | Consistency | Attempt pass rate | Flaky tests | Tests Correct | Output Tokens | Reasoning Tokens |
|---|---|---|---|---|---|---|---|
| Inception: Mercury 2 | 17 | 75 | 22.2% | 1 | 354 | 2,758 | |
| StepFun: Step 3.5 Flash | 40 | 100 | 33.3% | 0 | 5,629 | 10,835 |
| Tool Calling | Score | Consistency | Attempt pass rate | Flaky tests | Tests Correct | Output Tokens | Reasoning Tokens |
|---|---|---|---|---|---|---|---|
| Inception: Mercury 2 | 100 | 100 | 100.0% | 0 | 180 | 1,956 | |
| StepFun: Step 3.5 Flash | 100 | 100 | 100.0% | 0 | 275 | 3,802 |
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