StepFun: Step 3.7 Flash
by StepFunStepFun: Step 3.7 Flash is a large language model from StepFun. It costs $0.200 per million input tokens and $1.15 per million output tokens. Its context window is 262K tokens.
- Input / 1M tokens
- $0.200
- Output / 1M tokens
- $1.15
- Cached input / 1M
- $0.040
- Context window
- 262K
On repeated prefixes
tokens
Who serves it cheapest
2 hosts serve Step 3.7 Flash. Same weights, same API - the price difference is pure margin and routing.
| Provider | Input / 1M | Output / 1M | Context | Throughput | Uptime 24h |
|---|---|---|---|---|---|
| NovitaCheapestfp8 | $0.200 | $1.15 | 262K | - | 100.0% |
| StepFunfp8 | $0.200 | $1.15 | 256K | - | 100.0% |
The spread between Novita and StepFun is about the same for identical weights. Quantization and context limits differ, so check both columns before switching.
Benchmarks
Independent scores published alongside the catalogue.
- Intelligence index
- 19.5
- Coding index
- 39.6
About Step 3.7 Flash
Step 3.7 Flash is StepFun's latest high-efficiency multimodal Mixture-of-Experts model. It pairs a 196B-parameter language backbone with a vision encoder for native image and video understanding, activating roughly 11B parameters...
Specifications
| Model ID | stepfun/step-3.7-flash |
|---|---|
| Provider | StepFun |
| Context window | 262K tokens |
| Max output | 230K tokens |
| Input modalities | text, image, video |
| Output modalities | text |
| Knowledge cutoff | - |
| Open weights | Yes - stepfun-ai/Step-3.7-Flash |
| Released | May 28, 2026 |
Cheaper alternatives
Models that cost less than Step 3.7 Flash while keeping at least half its context window and every input modality it supports.
Frequently asked
How much does StepFun: Step 3.7 Flash cost?
$0.200 per million input tokens and $1.15 per million output tokens. Cached input reads cost $0.040 per million tokens.
What is the context window of StepFun: Step 3.7 Flash?
262K tokens, with up to 230K tokens of output per request.
Which provider serves StepFun: Step 3.7 Flash cheapest?
Novita at $0.200 per million input tokens - about the same cheaper than StepFun, the most expensive of the 2 hosts serving it.