Models

Nemotron 3.5 Content Safety (free) vs Step 3.7 Flash

Compare Nemotron 3.5 Content Safety (free) from Nvidia and Step 3.7 Flash from StepFun on key metrics including benchmarks, price, context length, and other model features. Access both models and hundreds of others through the AIHubMix API.

NvidiaNemotron 3.5 Content Safety (free)StepFunStep 3.7 Flash
Nvidia logo
Nemotron 3.5 Content Safety (free)
Nvidia · text, image → text

Developed by NVIDIA, Nemotron 3.5 Content Safety is a compact 4B-parameter multimodal guardrail model fine-tuned from Google Gemma-3-4B. Supporting an expansive context length of 128,000 tokens, this model moderates both user inputs and generated responses for LLMs and VLMs. It provides robust safety filtering to ensure aligned and secure interactions across multiple modalities.

Input$0 /M
Output$0 /M
StepFun logo
Step 3.7 Flash
StepFun · text, image, video → text

step-3.7-flash is stepfun's flagship inference model, designed for high-complexity tasks that require deep reasoning and fast execution. It excels at decomposing multi-step problems, performing tool calls, and maintaining consistency across massive datasets. It is the preferred choice for complex workloads such as long-context agents, advanced software engineering, and end-to-end research automation.

Input$0.22 /M
Output$1.32 /M
Cache read$0.044 /M

Pricing & Specifications

Prices are per million tokens. Time to First Token and throughput are rolling averages measured on AIHubMix.

Nemotron 3.5 Content Safety (free)
Step 3.7 Flash
Input /M
$0
$0.22
Output /M
$0
$1.32
Cache read /M
-
$0.044
Context length
131,072
256,000
Max output
0
0
Time to First Token
-
1.4 s
Throughput
-
32.6 tok/s
Modalities
textimage
textimagevideo
Supported Parameters
reasoninglong context
API Formats
chat_completions
Released
June 4, 2026
May 29, 2026

Promotional prices show the discounted rate; see each model page for promotion windows.

Activity Past 30 Days

Daily traffic served through AIHubMix — how demand for each model is trending.

nemotron-3.5-content-safety-freestep-3.7-flash

Tokens / day

-

Requests / day

-

Performance Past 3 Days

Measured on real AIHubMix traffic, hourly buckets. Gaps mean no traffic in that hour.

nemotron-3.5-content-safety-freestep-3.7-flash

Throughput (tok/s)

-

TTFT (s)

-

Uptime (%)

-

Cost calculator

Estimate your monthly bill for the same workload on each model.

Nemotron 3.5 Content Safety (free)
$0.00 /mo
Step 3.7 Flash
$33.00 /mo

Monthly = daily × 30. Discounted rates applied where a promotion is active.

FAQ

How large is each context window?

Nemotron 3.5 Content Safety (free) accepts 131,072 and Step 3.7 Flash accepts 256,000 input tokens.

What inputs and capabilities does each model support?

Nemotron 3.5 Content Safety (free) accepts text and image input and supports reasoning and long context; Step 3.7 Flash accepts text, image and video input.

Can I call Nemotron 3.5 Content Safety (free) and Step 3.7 Flash with the same API key?

Yes. AIHubMix serves every model on this page behind one OpenAI-compatible endpoint, so switching between them is a one-line change to the model field — no second account, key or SDK.

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