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DeepSeek: DeepSeek V4.1 Flash 1017 vs NVIDIA: Nemotron 3.5 Content Safety

Neither wins outright: DeepSeek: DeepSeek V4.1 Flash 1017 is the pick when you need to fit long inputs in one request, NVIDIA: Nemotron 3.5 Content Safety when cost matters at scale.

Key numbers

SpecDeepSeek: DeepSeek V4.1 Flash 1017NVIDIA: Nemotron 3.5 Content Safety
ProviderDeepSeekNvidia
Input price (per 1M tokens)$0.30$0.20
Output price (per 1M tokens)$1.20$0.20
Blended price (3:1 input/output)$0.52$0.20
Cheaper than … of all models we track52%69%
Context window1.0M tokens (~1,573 pages)131K tokens (~197 pages)
Larger context than … of all models80%22%
Max output per response393K tokens (~294,900 words)118K tokens (~88,500 words)
Input typestext, imagetext, image
Output typestexttext
Free variantNoYes
Listed since2026-10-172026-06-04
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What it costs for real workloads

Monthly cost at list price for five common workloads. Token counts per unit are stated so you can scale them to your own traffic. A workload that does not fit a model's context window is marked rather than priced.

Workload (per month)DeepSeek: DeepSeek V4.1 Flash 1017NVIDIA: Nemotron 3.5 Content SafetyDifference
Customer-support chatbot
50,000 conversations — each a 6-turn conversation (1,500 in / 400 out tokens)
$46.50$19.00NVIDIA: Nemotron 3.5 Content Safety saves $27.50
RAG search over documents
20,000 questions — each a question answered from ~8 retrieved passages (6,000 in / 500 out tokens)
$48.00$26.00NVIDIA: Nemotron 3.5 Content Safety saves $22.00
Coding / tool-using agent
2,000 tasks — each a multi-step task with tool calls and file context (60,000 in / 6,000 out tokens)
$50.40$26.40NVIDIA: Nemotron 3.5 Content Safety saves $24.00
Batch summarisation
10,000 documents — each a 6,000-word report summarised to a page (8,000 in / 600 out tokens)
$31.20$17.20NVIDIA: Nemotron 3.5 Content Safety saves $14.00
Long-document analysis
500 documents — each a 150-page contract or codebase read in one pass (100,000 in / 2,000 out tokens)
$16.20$10.20NVIDIA: Nemotron 3.5 Content Safety saves $6.00

Capabilities side by side

CapabilityDeepSeek: DeepSeek V4.1 Flash 1017NVIDIA: Nemotron 3.5 Content SafetyWhat it lets you do
Tool / function calling✓ Yes—call your APIs and run agent loops
Structured output (JSON schema)✓ Yes—return JSON that validates against your schema
Reasoning / thinking mode✓ Yes✓ Yesspend extra tokens thinking before answering hard problems
Image input✓ Yes✓ Yesread screenshots, charts and scanned pages
Audio input——take speech or audio directly
File / PDF input——accept documents without your own parsing step
Image output——generate images, not just text
Built-in web search——answer from live web results
Seed (reproducible sampling)✓ Yes✓ Yesrepeat a generation for tests and evals
Log-probabilities✓ Yes—read token confidence for classification and scoring

From each model's published parameters and input/output types. “—” means not advertised, not proven absent.

Price history

DateModelInput / 1MOutput / 1M
2026-10-19DeepSeek: DeepSeek V4.1 Flash 1017$0.30$1.20

Which should you choose?

Choose DeepSeek: DeepSeek V4.1 Flash 1017 if…

  • you need to fit long inputs in one request — 1.0M tokens is roughly 1,573 pages, against 197
  • you need tool / function calling — to call your APIs and run agent loops; NVIDIA: Nemotron 3.5 Content Safety does not advertise it
  • you need structured output (JSON schema) — to return JSON that validates against your schema; NVIDIA: Nemotron 3.5 Content Safety does not advertise it
  • you need log-probabilities — to read token confidence for classification and scoring; NVIDIA: Nemotron 3.5 Content Safety does not advertise it
  • you generate long outputs in one go — up to 393K tokens (about 294,900 words) per response
  • you want the newer model — released 2026-10-17, 5 months after the other

Choose NVIDIA: Nemotron 3.5 Content Safety if…

  • cost matters at scale — it is 62% cheaper on a typical 3:1 input/output mix ($19.00 vs $46.50 a month for 50,000 support chats)
  • you want to prototype at zero cost — a free variant is listed

Frequently asked questions

Is DeepSeek: DeepSeek V4.1 Flash 1017 better than NVIDIA: Nemotron 3.5 Content Safety?

Neither wins outright: DeepSeek: DeepSeek V4.1 Flash 1017 is the pick when you need to fit long inputs in one request, NVIDIA: Nemotron 3.5 Content Safety when cost matters at scale. In short: DeepSeek: DeepSeek V4.1 Flash 1017 when you need to fit long inputs in one request, you need tool / function calling, you need structured output (JSON schema), you need log-probabilities, you generate long outputs in one go, you want the newer model; NVIDIA: Nemotron 3.5 Content Safety when cost matters at scale, you want to prototype at zero cost.

Which is cheaper, DeepSeek: DeepSeek V4.1 Flash 1017 or NVIDIA: Nemotron 3.5 Content Safety?

NVIDIA: Nemotron 3.5 Content Safety is cheaper: $0.20 vs $0.52 per 1M tokens at a typical 3:1 input/output mix, 62% less. For 50,000 support conversations a month that is $19.00 against $46.50.

How much do DeepSeek: DeepSeek V4.1 Flash 1017 and NVIDIA: Nemotron 3.5 Content Safety cost per million tokens?

DeepSeek: DeepSeek V4.1 Flash 1017 costs $0.30 per 1M input tokens and $1.20 per 1M output tokens; NVIDIA: Nemotron 3.5 Content Safety costs $0.20 input and $0.20 output. Output tokens are billed separately, so long answers shift the gap.

Which has the bigger context window, DeepSeek: DeepSeek V4.1 Flash 1017 or NVIDIA: Nemotron 3.5 Content Safety?

DeepSeek: DeepSeek V4.1 Flash 1017: 1.0M tokens, about 1,573 pages, against 131K (about 197 pages) for NVIDIA: Nemotron 3.5 Content Safety.

Do DeepSeek: DeepSeek V4.1 Flash 1017 and NVIDIA: Nemotron 3.5 Content Safety support function calling and JSON output?

Tool calling — DeepSeek: DeepSeek V4.1 Flash 1017: yes, NVIDIA: Nemotron 3.5 Content Safety: not advertised. JSON-schema structured output — DeepSeek: DeepSeek V4.1 Flash 1017: yes, NVIDIA: Nemotron 3.5 Content Safety: not advertised.

Can DeepSeek: DeepSeek V4.1 Flash 1017 or NVIDIA: Nemotron 3.5 Content Safety read images?

Yes, both accept image input.

Is DeepSeek: DeepSeek V4.1 Flash 1017 or NVIDIA: Nemotron 3.5 Content Safety free to use?

NVIDIA: Nemotron 3.5 Content Safety has a free variant (nvidia/nemotron-3.5-content-safety:free). Free variants usually carry tighter rate limits.

What is the maximum output length of DeepSeek: DeepSeek V4.1 Flash 1017 and NVIDIA: Nemotron 3.5 Content Safety?

DeepSeek: DeepSeek V4.1 Flash 1017 can write up to 393K tokens (about 294,900 words) per response; NVIDIA: Nemotron 3.5 Content Safety up to 118K (about 88,500 words).

When were DeepSeek: DeepSeek V4.1 Flash 1017 and NVIDIA: Nemotron 3.5 Content Safety released?

DeepSeek: DeepSeek V4.1 Flash 1017 was listed on 2026-10-17; NVIDIA: Nemotron 3.5 Content Safety on 2026-06-04.

Has the price of DeepSeek: DeepSeek V4.1 Flash 1017 or NVIDIA: Nemotron 3.5 Content Safety changed?

DeepSeek: DeepSeek V4.1 Flash 1017: input price raised 50% ($0.15 → $0.30/1M), output price raised 50% ($0.60 → $1.20/1M) on 2026-10-19. NVIDIA: Nemotron 3.5 Content Safety: price unchanged since we started tracking it on 2026-09-04.

About the two models

Compare DeepSeek: DeepSeek V4.1 Flash 1017 with other models

vs AI21: Jamba Large 1.7vs AionLabs: Aion 3.5vs AionLabs: Aion 3.5 Minivs AionLabs: Aion-1.0

Compare NVIDIA: Nemotron 3.5 Content Safety with other models

vs AI21: Jamba Large 1.7vs AionLabs: Aion 3.5vs AionLabs: Aion 3.5 Minivs AionLabs: Aion-1.0
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