StepFun Step 3.7 Flash
Live per-token pricing via OpenRouter, verified 12 Jul 2026. Batch and long-context tiers are not published in the feed, so they are omitted rather than estimated.
An estimate from published per-token pricing and your assumptions. Actual costs vary by provider and usage tier.
Same workload as the calculator above, at each model's current price. Monthly USD.
Routed-token share over time. A price line joins it as real changes are recorded.
Mid cost · adoption falling. Observed relationship, not proof of causation.
Availability monitoring is derived from OpenRouter provider uptime; it refreshes with the daily build. Latency and throughput are not exposed by the data source, so we do not report them rather than estimate.
| Context window | 256K |
| Reasoning | ✓ Supported |
| Tool calling | ✓ Supported |
| Structured output | ✓ Supported |
| Image input | ✓ Supported |
| Audio input | — Not supported |
| Video input | ✓ Supported |
| Open weights | ✓ Yes |
| API availability | ✓ Yes |
| Commercial license | Verify terms with the provider |
- Current rank
- #10
- Peak rank
- #9
- Routed share
- 2.31%
- Peak share
- 3.33%
- Weeks ranked
- 7
- First tracked
- 30 May 2026
- Region of origin
- Asia · China
- Provider
- StepFun
- Model family
- Not publicly disclosed
- Release date
- Not publicly disclosed
- Type
- Multimodal (text + image)
- Modalities
- text, image, video
- Context window
- 256K tokens
- Weights
- Open weight
- License
- Not publicly disclosed
In the week ending 12 Jul 2026, StepFun Step 3.7 Flash fell 1 place to #10 with 2.31% of routed tokens and a peak rank of #9. Over 7 tracked weeks its routed share has moved from 0.29% to 2.31% (+2.03 pp).
A sourced weekly interpretation of what is driving this model's routing is added as the record accumulates. yellow3 does not publish a reason for movement unless the routed-traffic data or a cited source supports it.
| Week ending | Rank | Routed share | Δ share | Movement | Region rank | Status |
|---|---|---|---|---|---|---|
| 12 Jul 2026 | #10 | 2.31% | -1.01 | ▼ 1places down | #7 | ranked |
| 5 Jul 2026 | #9 | 3.33% | +0.07 | ▲ 2places up | #7 | ranked |
| 28 Jun 2026 | #11 | 3.25% | +1.35 | ▲ 4places up | #7 | ranked |
| 21 Jun 2026 | #15 | 1.90% | +0.17 | ▼ 2places down | #9 | ranked |
| 14 Jun 2026 | #13 | 1.73% | -0.51 | ▼ 1places down | #7 | ranked |
| 7 Jun 2026 | #12 | 2.24% | +1.95 | ▲ 33places up | #7 | ranked |
| 31 May 2026 | #45 | 0.29% | – | NEW | #18 | NEW |
| Date | Input / 1M | Output / 1M | Change | Source |
|---|---|---|---|---|
| 12 Jul 2026 | $0.20 | $1.15 | — | OpenRouter listed price |
Price history begins when yellow3 started tracking this model and accrues one point per change from here. Only real, observed price changes are recorded.
- 30 May 2026First trackedDerived from yellow3 routed-traffic data
- 7 Jun 2026Entered top 20Derived from yellow3 routed-traffic data
- 7 Jun 2026Biggest weekly rise +33 placesDerived from yellow3 routed-traffic data
- 21 Jun 2026Biggest weekly fall -2 placesDerived from yellow3 routed-traffic data
- 5 Jul 2026Entered top 10Derived from yellow3 routed-traffic data
- 5 Jul 2026Peak routed share 3.33%Derived from yellow3 routed-traffic data
Region reflects where the model's developer is headquartered. Figures are OpenRouter routing traffic, aggregated over a trailing seven days - developer routing behaviour, not the whole market.