StepFun, proprietary

# Step 2 (16K)

> Step 2 (16K) by StepFun, released January 2025. API: $5.21 in / $16.44 out per M tokens. 16K context. Scores, sources and comparisons.
- Canonical page: https://noometry.com/models/step-2
- Last updated: 2026-10-10
- Title: Step 2 (16K) Benchmarks, Price & Rank (October 2026)

Step 2 (16K) is a StepFun model tracked on Noometry for pricing and specifications. API pricing starts at $5.21 per million input tokens and $16.44 per million output tokens, with a 16K-token context window.

Last verified October 10, 2026

## Specifications

- **Noometry rank:** Unranked
- **Index score:** Not ranked
- **Evidence:** 0 results
- **Provider:** [![](/logos/stepfun.svg) StepFun](https://noometry.com/providers/stepfun)
- **Released:** January 1, 2025
- **Weights:** Proprietary
- **Reasoning:** No
- **Context window:** 16K
- **Max output:** 8K
- **Input price:** $5.21 / M
- **Output price:** $16.44 / M
- **Blended price:** $8.02 / M
- **Output speed:** Not measured
- **Value:** Not ranked
- **Knowledge cutoff:** June 2024
- **Input:** text

Sponsored placements are available on pages like this one. [Advertise on Noometry](https://noometry.com/advertise)

## Benchmark results

Every published result we track, with its source. Bold rows are the ones used for ranking; where several exist we prefer independent runs over self-reported numbers.

No public benchmark results are tracked for Step 2 (16K) yet.

## API pricing by provider

Step 2 (16K) API prices
| Route | Input $/M | Output $/M | Cached input $/M | Checked |
| --- | --- | --- | --- | --- |
| [stepfun](https://platform.stepfun.ai/docs/en/overview/concept) | $5.21 | $16.44 | $1.04 | 2026-10-10 |

[All StepFun API prices →](https://noometry.com/llm-pricing/stepfun) [Estimate your cost →](https://noometry.com/tools/cost-calculator)

## Compare Step 2 (16K)

-   [Step 2 (16K) vs GPT-6 Astra](https://noometry.com/compare/gpt-6-astra-vs-step-2)
-   [Step 2 (16K) vs Claude Fable 5.1](https://noometry.com/compare/claude-fable-5-1-vs-step-2)
-   [Step 2 (16K) vs Claude Opus 5.5](https://noometry.com/compare/claude-opus-5-5-vs-step-2)
-   [Step 2 (16K) vs Claude Opus 5](https://noometry.com/compare/claude-opus-5-vs-step-2)
-   [Step 2 (16K) vs Claude Fable 5](https://noometry.com/compare/claude-fable-5-vs-step-2)
-   [Step 2 (16K) vs GPT-6.1 Sol](https://noometry.com/compare/gpt-6-1-sol-vs-step-2)
-   [Step 2 (16K) vs Gemini 3.8 Flash](https://noometry.com/compare/gemini-3-8-flash-vs-step-2)
-   [Step 2 (16K) vs Kimi K3](https://noometry.com/compare/kimi-k3-vs-step-2)
-   [Step 2 (16K) vs Grok 4.6](https://noometry.com/compare/grok-4-6-vs-step-2)
-   [Step 2 (16K) vs Qwen3.8 Max](https://noometry.com/compare/qwen3-8-max-vs-step-2)
-   [Step 2 (16K) vs GLM-5.3](https://noometry.com/compare/glm-5-3-vs-step-2)
-   [Step 2 (16K) vs Muse Spark 1.3](https://noometry.com/compare/muse-spark-1-3-vs-step-2)
-   [Step 2 (16K) vs DeepSeek V4 Pro](https://noometry.com/compare/deepseek-v4-pro-vs-step-2)
-   [Step 2 (16K) vs MiMo-V2.6-Pro](https://noometry.com/compare/mimo-v2-6-pro-vs-step-2)

## Other StepFun models

-   [Step 5 Preview](https://noometry.com/models/step-5-preview)47.9
-   [Step 3.5 Flash](https://noometry.com/models/step-3-5-flash)42.3
-   [Step 3](https://noometry.com/models/step-3)40.5
-   [Step 1o Turbo 202506](https://noometry.com/models/step-1o-turbo-202506)39.7
-   [Step 2 16k Exp 202412](https://noometry.com/models/step-2-16k-exp-202412)39.2
-   [Step 3.7 Flash](https://noometry.com/models/step-3-7-flash)37.3
-   [Step 1 (32K)](https://noometry.com/models/step-1)

## Frequently asked questions

### How good is Step 2 (16K)?

Step 2 (16K) is a StepFun model tracked on Noometry for pricing and specifications. API pricing starts at $5.21 per million input tokens and $16.44 per million output tokens, with a 16K-token context window.

### How much does Step 2 (16K) cost?

Step 2 (16K) costs $5.21 per million input tokens and $16.44 per million output tokens on StepFun's own API, with cached input at $1.04.

### What is Step 2 (16K)'s context window?

Step 2 (16K) accepts up to 16K tokens of input and can write up to 8K tokens in one response.

### Is Step 2 (16K) open source?

No. Step 2 (16K) is proprietary and available only through StepFun's API and partner platforms.

### Cite this page

Noometry. (2026). Step 2 (16K) benchmarks and pricing. Retrieved October 10, 2026, from https://noometry.com/models/step-2

Quote Noometry with a link back to this page. It is also available in [Markdown](https://noometry.com/md/models/step-2.md).