StepFun: Step 3.5 Flash
Listed on OpenRouter as stepfun/step-3.5-flash since Feb 19, 2026. 111 snapshot observations, 2 repricings.
$0.15per 1M blended · $0.10 in / $0.30 out
USD per 1M tokens · blended at 3 input : 1 output · at this price for 99 days (since Jul 2, 2026)
All-time low$0.14Jun 14, 2026
All-time high$0.15Feb 19, 2026
Change since first seen+0.0%$0.15 on Feb 19, 2026
Listed price over time
| Observed | Input | Output | Blended | Change |
|---|---|---|---|---|
| Jul 2, 2026 | $0.10 | $0.30 | $0.15 | +5.3% |
| Jun 14, 2026 | $0.090 | $0.30 | $0.14 | -5.0% |
| Feb 19, 2026 | $0.10 | $0.30 | $0.15 | first observation |
Where it is listed today
Current listed rates across the sources LLMPI compares. The cheapest blended row is highlighted; lower price never implies identical terms, speed, or quality.
| Source | Input | Output | Blended | Listing ID |
|---|---|---|---|---|
| OpenRouter Pricing evidence | $0.10 | $0.30 | $0.15 | stepfun/step-3.5-flash |
| Nous Portal Provider catalog (not exact listing evidence) | $0.10 | $0.30 | $0.15 | stepfun/step-3.5-flash |
| AIHubMix Pricing evidence | $0.11 | $0.33 | $0.17 | step-3.5-flash |
Evidence and scope
- Source
- OpenRouter public model listing
- Archive
- Wayback Machine snapshots of that listing (weekly-grade, from July 2023) plus LLMPI's own daily snapshots since June 2026
- Last observed
- Oct 9, 2026
- Data
- history.json (CC BY 4.0)
This is the listed standard text-token rate for one OpenRouter listing ID. It does not normalize caching, batch discounts, long-context tiers, providers behind the listing, or model quality. A price can also move because OpenRouter's default route changed provider.