StepFun
Step 3.7 Flash
Step 3.7 Flash is StepFun's latest high-efficiency multimodal Mixture-of-Experts model.
At a glance
- Input / 1M
- $0.20
- Output / 1M
- $1.15
- Context
- 262K
- Max output
- 230K
- Intelligence
- 19.5
- Released
- May 2026
Pricing
Step 3.7 Flash API pricing
Per-token rates, plus what common tasks actually cost.
| Input tokensPer 1M tokens | $0.20 |
|---|---|
| Output tokensPer 1M tokens | $1.15 |
| Cached input (read)Per 1M tokens | $0.04 |
| Cache writePer 1M tokens | Not available |
Chat message
2K in, 500 out
$0.98
per 1,000 requests
Coding task
30K in, 4K out
$10.60
per 1,000 requests
Long document summary
150K in, 2K out
$32.30
per 1,000 requests
Benchmarks
Step 3.7 Flash benchmark scores
Independent scores from Artificial Analysis. Higher is better.
Intelligence index
19.5
Coding index
39.6
Agentic index
Not available
Specs
Context window and capabilities
What it can read, what it can write, and which API features it supports.
- Context window
- 262K tokens
- Max output
- 230K tokens
- Input types
- Image, Text, Video
- Output types
- Text
- Reasoning effort
- High, Medium, Low
- Release date
- May 28, 2026
- Tool calling
- Structured outputs
- JSON mode
- Reasoning
- Temperature
- Stop sequences
- Deterministic seed
- Verbosity control
Compare
Step 3.7 Flash vs other models
See how Step 3.7 Flash stacks up head to head on price, benchmarks, and features.
Step 3.7 Flash vs DeepSeek V4 Flash 0423
StepFun vs DeepSeek
See comparisonStep 3.7 Flash vs Step 5 Preview
StepFun vs StepFun
See comparisonStep 3.7 Flash vs DeepSeek V3.2
StepFun vs DeepSeek
See comparison
Step 3.7 Flash vs GPT-5 Mini
StepFun vs OpenAI
See comparisonStep 3.7 Flash vs Ling 3.0 Flash
StepFun vs inclusionAI
See comparisonStep 3.7 Flash vs GPT-5.4 Nano
StepFun vs OpenAI
See comparisonMore Step 3.7 Flash comparisons
- Step 3.7 Flash vs Qwen3.6 35B A3B
- Step 3.7 Flash vs MiniMax M2.5
- Step 3.7 Flash vs Muse Glimmer 30B
- Step 3.7 Flash vs MiniMax M2.1
- Step 3.7 Flash vs GPT-5.1-Codex-Mini
- Step 3.7 Flash vs Qwen3.5-35B-A3B
- Step 3.7 Flash vs LongCat 2.0
- Step 3.7 Flash vs MiniMax M2
- Step 3.7 Flash vs GLM 4.6
- Step 3.7 Flash vs Step 3.5 Flash
Alternatives
Step 3.7 Flash alternatives
Similar models worth considering, and where each one has the edge.
DeepSeek
DeepSeek V4 Flash 0423
MiniMax
MiniMax M2.1
OpenAI
GPT-5.4 Nano
Want to learn about other models? Browse all models
FAQ
Frequently asked questions
How much does Step 3.7 Flash cost?
Step 3.7 Flash costs $0.20 per 1M input tokens and $1.15 per 1M output tokens through the API. A typical chat message costs about $0.98 per 1,000 messages.
What is the context window of Step 3.7 Flash?
Step 3.7 Flash accepts up to 262K tokens of input and can write up to 230K tokens in a single response.
What is the best alternative to Step 3.7 Flash?
DeepSeek V4 Flash 0423 from DeepSeek is a strong alternative. It offers: higher intelligence score, larger 1.05m context.
Can I use Step 3.7 Flash alongside other models?
Yes. Shortcut Chat sends one prompt to Step 3.7 Flash and any other models you pick at the same time, so you can compare answers side by side.
Try Step 3.7 Flash next to every other model.
Use Step 3.7 Flash alongside all the other models. Use one at a time, or multiple together. Get the best answer from every AI.