StepFun Step 3.7 Flash
Live per-token pricing via OpenRouter, verified 12 Aug 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.
Median provider uptime across OpenRouter endpoints, last 30 days. Latency and throughput are not published by the source and are not estimated here.
| Context window | 262K |
| 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
- #14
- Peak rank
- #8
- Routed share
- 1.61%
- Peak share
- 3.19%
- Weeks ranked
- 11
- 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 Aug 2026, StepFun Step 3.7 Flash fell 3 places to #14 with 1.61% of routed tokens and a peak rank of #8. Over 11 tracked weeks its routed share has moved from 1.21% to 1.61% (+0.40 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 Aug 2026 | #14 | 1.61% | -0.72 | ▼ 3places down | #9 | ranked |
| 5 Aug 2026 | #11 | 2.33% | -0.85 | ▼ 3places down | #8 | ranked |
| 29 Jul 2026 | #8 | 3.19% | +1.01 | ▲ 2places up | #7 | ranked |
| 22 Jul 2026 | #10 | 2.17% | +0.53 | –no change | #7 | ranked |
| 15 Jul 2026 | #10 | 1.64% | -1.41 | –no change | #7 | ranked |
| 8 Jul 2026 | #10 | 3.05% | -0.14 | ▲ 1places up | #8 | ranked |
| 1 Jul 2026 | #11 | 3.19% | +0.45 | –no change | #7 | ranked |
| 24 Jun 2026 | #11 | 2.74% | +1.15 | ▲ 3places up | #7 | ranked |
| 17 Jun 2026 | #14 | 1.59% | -0.52 | ▼ 2places down | #8 | ranked |
| 10 Jun 2026 | #12 | 2.11% | +0.90 | ▲ 12places up | #7 | ranked |
| 3 Jun 2026 | #24 | 1.21% | – | NEW | #10 | 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
- 10 Jun 2026Entered top 20Derived from yellow3 routed-traffic data
- 10 Jun 2026Biggest weekly rise +12 placesDerived from yellow3 routed-traffic data
- 1 Jul 2026Peak routed share 3.19%Derived from yellow3 routed-traffic data
- 8 Jul 2026Entered top 10Derived from yellow3 routed-traffic data
- 5 Aug 2026Biggest weekly fall -3 placesDerived 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.