API cost decision in 10 seconds

Gemini 3.1 Pro Preview Custom Tools vs DeepSeek V3.1 Nex N1

Pick DeepSeek V3.1 Nex N1 for lower cost; pick Gemini 3.1 Pro Preview Custom Tools only if the larger context window matters more.

Pricing data updated: 2026-05-26T11:08:00Z Prices normalized to USD per 1M tokens Sample workload: 1M input + 500K output

Budget verdict

Pick DeepSeek V3.1 Nex N1 for lower cost; pick Gemini 3.1 Pro Preview Custom Tools only if the larger context window matters more.

On the standard 1M input plus 500K output workload, DeepSeek V3.1 Nex N1 is estimated at $0.39 vs $8 for Gemini 3.1 Pro Preview Custom Tools, saving $7.62 (95.2% lower).

Cost-first pickDeepSeek V3.1 Nex N1

Context-first pickGemini 3.1 Pro Preview Custom Tools

Sample savings$7.6295.2%

10x traffic gap$76.15

Gemini 3.1 Pro Preview Custom Tools has more context, but DeepSeek V3.1 Nex N1 saves $7.62 on the standard workload. At 10x that traffic, the same price gap is about $76.15. Use the calculator below to replace the sample workload with your own token volume.

Cost sensitivity

Workload Sensitivity

Same prices, different token mixes.

DeepSeek V3.1 Nex N1 stays cheaper across input-heavy, balanced, and output-heavy sample workloads.

Workload shape	Token mix	Better pick	Gemini 3.1 Pro Preview Custom Tools	DeepSeek V3.1 Nex N1
Input-heavy / RAG	5M input + 500K output	DeepSeek V3.1 Nex N1	$16	$0.93
Balanced workload	1M input + 1M output	DeepSeek V3.1 Nex N1	$14	$0.64
Output-heavy chatbot	1M input + 5M output	DeepSeek V3.1 Nex N1	$62	$2.63

Cheaper input DeepSeek V3.1 Nex N1 $2 vs $0.135 / 1M

DeepSeek V3.1 Nex N1 is $1.86 cheaper per 1M input tokens (93.2% lower; 14.8x difference).

Cheaper output DeepSeek V3.1 Nex N1 $12 vs $0.5 / 1M

DeepSeek V3.1 Nex N1 is $11.5 cheaper per 1M output tokens (95.8% lower; 24x difference).

Larger context Gemini 3.1 Pro Preview Custom Tools 1.05M vs 131.07K

Gemini 3.1 Pro Preview Custom Tools has 917.68K more context (8x larger).

Sample workload DeepSeek V3.1 Nex N1 $8 vs $0.39

DeepSeek V3.1 Nex N1 is $7.62 cheaper on the standard workload (95.2% lower).

Estimate your workload cost

Your Workload Cost

Prices are normalized to USD per 1M tokens.

Monthly input tokens Monthly output tokens

Gemini 3.1 Pro Preview Custom Tools Calculating… Estimated API cost

DeepSeek V3.1 Nex N1 Calculating… Estimated API cost

Cheaper for this workload Calculating… Difference: calculating…

This estimate uses normalized public API pricing per 1M tokens. It is a planning aid, not a billing quote. Verify provider pricing, limits, and terms before production use.

Quick Decision

Verdict

DeepSeek V3.1 Nex N1 has the lower input price; DeepSeek V3.1 Nex N1 has the lower output price; Gemini 3.1 Pro Preview Custom Tools offers the larger context window. For the 1M input plus 500K output sample, DeepSeek V3.1 Nex N1 is cheaper for the standard workload.

For a 1M input token plus 500K output token workload, the estimated API cost is $8 for Gemini 3.1 Pro Preview Custom Tools and $0.39 for DeepSeek V3.1 Nex N1.

Best Fit

Choose Gemini 3.1 Pro Preview Custom Tools when you care most about larger context window.

Choose DeepSeek V3.1 Nex N1 when you care most about lower input-token price, and lower output-token price.

Decision Notes

On the standard 1M input plus 500K output workload, DeepSeek V3.1 Nex N1 is estimated at $0.39 vs $8 for Gemini 3.1 Pro Preview Custom Tools, saving $7.62 (95.2% lower).
DeepSeek V3.1 Nex N1 is $7.62 cheaper on the standard workload (95.2% lower).
DeepSeek V3.1 Nex N1 is $1.86 cheaper per 1M input tokens (93.2% lower; 14.8x difference).
DeepSeek V3.1 Nex N1 is $11.5 cheaper per 1M output tokens (95.8% lower; 24x difference).
Gemini 3.1 Pro Preview Custom Tools has 917.68K more context (8x larger).

Head-to-Head Specs

Feature	Gemini 3.1 Pro Preview Custom Tools (Google)	DeepSeek V3.1 Nex N1 (Nex AGI)
Input Price prompt tokens per 1M	$2	$0.135
Completion Price per 1M tokens	$12	$0.5
Sample Workload Cost 1M input + 500K output	$8	$0.39
Context Window	1.05M	131.07K
Release Date	2026-02-25	2025-12-08

Use-Case Decision Matrix

Use case	Better pick	Why
Budget-constrained production	DeepSeek V3.1 Nex N1	On the standard 1M input plus 500K output workload, DeepSeek V3.1 Nex N1 is estimated at $0.39 vs $8 for Gemini 3.1 Pro Preview Custom Tools, saving $7.62 (95.2% lower).
High-volume input processing	DeepSeek V3.1 Nex N1	Lower prompt-token price matters most when prompts, retrieved passages, or documents dominate the bill.
Long responses and chatbots	DeepSeek V3.1 Nex N1	Lower output-token price matters most when assistants generate many completion tokens.
RAG or long-document work	Gemini 3.1 Pro Preview Custom Tools	A larger context window leaves more room for retrieved passages, conversation history, or source files.

Related Alternatives

Same-provider lower-cost swaps

Gemma 4 26B A4B (free) can replace Gemini 3.1 Pro Preview Custom Tools when lower sample workload cost matters most: $0.
Gemma 4 31B (free) can replace Gemini 3.1 Pro Preview Custom Tools when lower sample workload cost matters most: $0.
Lyria 3 Pro Preview can replace Gemini 3.1 Pro Preview Custom Tools when lower sample workload cost matters most: $0.
Lyria 3 Clip Preview can replace Gemini 3.1 Pro Preview Custom Tools when lower sample workload cost matters most: $0.

Larger context near this budget

Llama 4 Scout offers 10M context with $0.23 sample workload cost.
Grok 4.20 Multi-Agent offers 2M context with $5 sample workload cost.
Grok 4.20 offers 2M context with $2.5 sample workload cost.
GPT-5.4 offers 1.05M context with $10 sample workload cost.

Popular competitors

No popular competitor is currently available.

Cheaper alternatives

Review low-cost models sorted by a standard 1M input plus 500K output workload.

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Larger context alternatives

Find models with larger context windows for RAG, long documents, and codebase review.

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Provider catalogs

Compare models within provider hubs before choosing a final API vendor.

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Google catalog

Review all tracked Google models before deciding whether this matchup is the right shortlist.

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Nex AGI catalog

Check other Nex AGI models with comparable pricing, context, or release timing.

Open Nex AGI models

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