SStepFun: Step 3.7 Flash
stepfun/step-3-7-flashStep 3.7 Flash is StepFun's latest high-efficiency multimodal Mixture-of-Experts model.
Modalities
In / out per 1M$0.20 / $1.15
Context256K
ReleasedMay 28, 2026
Providers
2 providers serve this model upstream.
| Provider | Input /M | Output /M | Cache read /M | Latency P50 | Throughput P50 | Uptime |
|---|---|---|---|---|---|---|
| $0.20 | $1.15 | $0.04 | — | — | 100% | |
| $0.20 | $1.15 | $0.04 | 3.81s | 95 tps | 99.92% |
Market-wide measurements, refreshed every 15 minutes. They describe who serves Step 3.7 Flash in general, not how ProjectCOZY routes your requests.
Pricing
List rates per 1M tokens — what Step 3.7 Flash costs pay-as-you-go elsewhere, not what you pay here.
Input
$0.20
per 1M tokens
Output
$1.15
per 1M tokens
Cache read
$0.04
per 1M cached tokens
Included in every pass
Step 3.7 Flash is included in every ProjectCOZY pass at no extra cost — one flat rate, no per-token metering. The rates above are there for comparison.
Performance
Time to first token and output speed across every provider, over the last 3 days.
0.0s5.0s10.0s15.0s20.0s
Oct 11, 12 AMOct 11, 8 AMOct 11, 4 PMOct 12, 12 AMOct 12, 8 AMOct 12, 4 PMOct 13, 12 AMOct 13, 8 AMOct 13, 4 PMOct 14, 12 AMOct 14, 8 AM
NovitaAI StepFun
0 tok/s100 tok/s200 tok/s300 tok/s400 tok/s
Oct 11, 12 AMOct 11, 8 AMOct 11, 4 PMOct 12, 12 AMOct 12, 8 AMOct 12, 4 PMOct 13, 12 AMOct 13, 8 AMOct 13, 4 PMOct 14, 12 AMOct 14, 8 AM
NovitaAI StepFun
Uptime
100% of requests were served successfully over the last 3 days, across all providers.
Last 3 daysAvailability 99.46%
Oct 11, 2:00 PMNow
Availability over the last 24 hoursAvailability 99.46%
100% 97% 93% 90%
Oct 13, 2:50 PMNow
Apps
Tools that most often run Step 3.7 Flash, by tokens this week.
Activity
289.1B tokens processed market-wide in the last month.
020.0B40.0B60.0B80.0B
Sep 14Sep 19Sep 24Sep 29Oct 4Oct 9Oct 14
Tokens
FAQ
Which model id do I use for Step 3.7 Flash?
stepfun/step-3.7-flash. Send it as the model field from any OpenAI-compatible client, against http://192.168.1.55/v1.
How much context does Step 3.7 Flash hold?
262,144 tokens per request, of which up to 230,400 can be the response.
What can it accept and return?
Input: text, image, video. Output: text.
What does Step 3.7 Flash cost on a pass?
Nothing beyond the pass itself. Pay-as-you-go elsewhere it lists at $0.20 per 1M input tokens and $1.15 per 1M output tokens.
Who built Step 3.7 Flash?
StepFun, in the Step family.
Explore
Other models your pass can call.
