Step 3.5 Flash
Step 3.5 Flash is developed by StepFun. MeetNewAI lists 1 benchmark boards and 5 plans for it.
Plans and real price
Cheapest measured$0.0006per million tokens, measuredStep Plan Max (¥699) · medium confidence · Sep 10, 2026
API list price$0.700 / $2.10input / output per million tokens
| Plan | Monthly price | Usable tokens / month | Real price / MTok | Confidence | Data date |
|---|---|---|---|---|---|
| Step Plan Max (¥699) | $103 | 173.2B | $0.0006 | medium | Sep 10, 2026 |
| Step Plan Pro (¥199) | $29 | 34.6B | $0.0008 | medium | Sep 10, 2026 |
| Step Plan Plus (¥99) | $15 | 6.9B | $0.0021 | medium | Sep 10, 2026 |
| Step Plan Mini (¥49) | $7.23 | 1.7B | $0.0042 | medium | Sep 10, 2026 |
| Command Code GOAT | $10 | 863.9M | $0.012 | medium | Sep 30, 2026 |
Benchmarks
Artificial Analysis Intelligence Index v4.3 Intelligence Index · Oct 1, 2026
| Configuration | Harness | Score | Cost per task |
|---|---|---|---|
| Step 3.5 Flash 2603 [AA estimate] | — | 17.0 | — |
| Step 3.5 Flash [AA estimate] | — | 16.6 | — |