Specifications
Context Window
—
Input Price/1M
$1.00
#541 of 773
Output Price/1M
$2.70
Parameters
—
Speed
84 tok/s
#210 of 622
Latency (TTFT)
3.1s
Cost per Task
30.7
AA Score / US$ · higher = better
Benchmarks
Step 5 Preview results on the main AI model evaluation benchmarks. Higher scores indicate better performance.
overall
| Benchmark | Score | Maximum | Methodology |
|---|---|---|---|
| AA Intelligence Index | 43.7 | 100.0 | Artificial Analysis official API |
Information
- Release date
- September 18, 2026
- Tool Calling
- ❌ Not supported
- Vision
- ❌ Not supported
- Audio
- ❌ Not supported
Full Analysis: Step 5 Preview
What is Step 5 Preview?
Step 5 Preview is an AI model developed by StepFun, classified as a text model. It focuses on text processing and natural language generation. As a proprietary model, it is available via StepFun's cloud API.
Pricing & Costs in 2026
Step 5 Preview is usage-based, priced at $1/1M input tokens and $2.7/1M output tokens. For context: 1 million tokens is approximately 750,000 words, or about 10 average-length books. The mid-range pricing balances quality and cost for most professional applications.
Benchmarks & Performance
Step 5 Preview was evaluated on 1 different benchmarks, covering categories like overall. Results show moderate performance across available evaluations.
It's important to note that benchmarks measure specific aspects and don't capture the full user experience. Factors like instruction adherence, behavior in long conversations, and real-world task quality vary significantly between models and aren't always reflected in standard scores.
Recommended Use Cases
Step 5 Preview specializes in text, offering advanced capabilities for creating and processing text content.
Comparison with Alternatives
In the 2026 AI model ecosystem, Step 5 Preview competes directly with similarly capable models. StepFun competes in this segment against OpenAI, Anthropic, Google, and Meta. The choice between models depends on the specific use case, budget, latency requirements, and need for features like multimodality and tool calling.
For a detailed side-by-side comparison, use our comparison tool or check the overall model ranking.
Frequently Asked Questions
What is Step 5 Preview?
Step 5 Preview is an AI model developed by StepFun. It is a text model.
How much does Step 5 Preview cost?
Step 5 Preview costs $1/1M input tokens and $2.7/1M output tokens. For heavy usage (e.g., a chatbot handling 100k messages/month), costs can range from $10 to $1,000 depending on volume.
How does Step 5 Preview compare with other models?
In available benchmarks, Step 5 Preview scored: AA Intelligence Index: 43.7/100. See the full table above for a detailed comparison.
Is Step 5 Preview open source?
No, Step 5 Preview is a proprietary model from StepFun. It is available via cloud API. For open source alternatives, check our open source model ranking.
What is Step 5 Preview best for?
Step 5 Preview excels at general-purpose language tasks.
Last updated: September 24, 2026 • View methodology →