API cost decision in 10 seconds

GPT-5.4 Nano vs 🔥DeepSeek V3.2

Pick DeepSeek V3.2 for lower cost; pick GPT-5.4 Nano only if the larger context window matters more.

Pricing data updated:  Prices normalized to USD per 1M tokens Sample workload: 1M input + 500K output

Budget verdict

Pick DeepSeek V3.2 for lower cost; pick GPT-5.4 Nano only if the larger context window matters more.

On the standard 1M input plus 500K output workload, DeepSeek V3.2 is estimated at $0.44 vs $0.82 for GPT-5.4 Nano, saving $0.38 (46.5% lower).

Cost-first pickDeepSeek V3.2
Context-first pickGPT-5.4 Nano
Sample savings$0.3846.5%
10x traffic gap$3.84

GPT-5.4 Nano has more context, but DeepSeek V3.2 saves $0.38 on the standard workload. At 10x that traffic, the same price gap is about $3.84. Use the calculator below to replace the sample workload with your own token volume.

Cost sensitivity

Workload Sensitivity

Same prices, different token mixes.

DeepSeek V3.2 stays cheaper across input-heavy, balanced, and output-heavy sample workloads.

Workload shapeToken mixBetter pickGPT-5.4 NanoDeepSeek V3.2
Input-heavy / RAG 5M input + 500K output DeepSeek V3.2 $1.63 $1.45
Balanced workload 1M input + 1M output DeepSeek V3.2 $1.45 $0.63
Output-heavy chatbot 1M input + 5M output DeepSeek V3.2 $6.45 $2.14
Cheaper inputGPT-5.4 Nano$0.2 vs $0.25 / 1M
Cheaper outputDeepSeek V3.2$1.25 vs $0.38 / 1M
Larger contextGPT-5.4 Nano400K vs 131.07K
Sample workloadDeepSeek V3.2$0.82 vs $0.44

Estimate your workload cost

Your Workload Cost

Prices are normalized to USD per 1M tokens.
GPT-5.4 NanoCalculating…Estimated API cost
DeepSeek V3.2Calculating…Estimated API cost
Cheaper for this workloadCalculating…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

GPT-5.4 Nano has the lower input price, DeepSeek V3.2 has the lower output price, and GPT-5.4 Nano offers the larger context window.

For a 1M input token plus 500K output token workload, the estimated API cost is $0.82 for GPT-5.4 Nano and $0.44 for DeepSeek V3.2.

Best Fit

Choose GPT-5.4 Nano when you care most about lower input-token price, and larger context window.

Choose DeepSeek V3.2 when you care most about lower output-token price.

Head-to-Head Specs
FeatureGPT-5.4 Nano
(OpenAI)		🔥DeepSeek V3.2
(DeepSeek)
Input Price
prompt tokens per 1M		$0.2$0.25
Completion Price
per 1M tokens		$1.25$0.38
Sample Workload Cost
1M input + 500K output		$0.82$0.44
Context Window400K131.07K
Release Date2026-03-172025-12-01
Popularity#8
GPT-5.4 Nano

GPT-5.4 nano is the most lightweight and cost-efficient variant of the GPT-5.4 family, optimized for speed-critical and high-volume tasks. It supports text and image inputs and is designed for low-latency...

DeepSeek V3.2

DeepSeek-V3.2 is a large language model designed to harmonize high computational efficiency with strong reasoning and agentic tool-use performance. It introduces DeepSeek Sparse Attention (DSA), a fine-grained sparse attention mechanism...

Use-Case Decision Matrix

Use caseBetter pickWhy
Budget-constrained productionDeepSeek V3.2On the standard 1M input plus 500K output workload, DeepSeek V3.2 is estimated at $0.44 vs $0.82 for GPT-5.4 Nano, saving $0.38 (46.5% lower).
High-volume input processingGPT-5.4 NanoLower prompt-token price matters most when prompts or retrieved passages dominate the bill.
Long responses and chatbotsDeepSeek V3.2Lower output-token price matters most when assistants generate many completion tokens.
RAG or long-document workGPT-5.4 NanoA larger context window leaves more room for retrieved passages and source files.