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Comparison · 2 models · Updated Oct 4, 2026

GPT-5.4 nano vs DeepSeek V3 0324

GPT-5.4 nano comes out ahead, 68 to 54 on our weighted score, though DeepSeek V3 0324 is 12% cheaper per token.

  1. Our pick

    OpenAI

    GPT-5.4 nano

    Released Mar 17, 2026

    68/100
    • ECI145.8
    • Price$0.20 / $1.25
    • Context400K
    Full specs Remove GPT-5.4 nano

  2. DeepSeek

    DeepSeek V3 0324

    Released Mar 24, 2025

    54/100
    • ECI135.9
    • Price$0.24 / $0.90
    • Context164K
    Full specs Remove DeepSeek V3 0324

  3. Add a model

    Make it a three-way comparison.

01 — Verdict

GPT-5.4 nano is our pick

GPT-5.4 nano is the better all-round choice, scoring 68/100 against DeepSeek V3 0324 (54). It leads on capability, inputs & features and context window. DeepSeek V3 0324 wins on price. The score weighs capability 50%, price 25%, inputs & features 15%, context window 10%.

  • CapabilityGPT-5.4 nanoCapabilities Index (ECI): GPT-5.4 nano 145.8 · DeepSeek V3 0324 135.9
  • Lowest priceDeepSeek V3 0324DeepSeek V3 0324 $0.405 · GPT-5.4 nano $0.463 per 1M tokens (3:1 blend)
  • Longest contextGPT-5.4 nanoGPT-5.4 nano 400,000 · DeepSeek V3 0324 163,840 tokens
  • Widest inputsGPT-5.4 nanoGPT-5.4 nano: Text, Images · DeepSeek V3 0324: Text
  • Self-hostingDeepSeek V3 0324Publishes downloadable weights
How the score is built
MeasureWeightGPT-5.4 nanoDeepSeek V3 0324
CapabilityCapabilities Index (ECI)50%7360
Price25%6668
Inputs & features15%7025
Context window10%4428
Overall100%68/10054/100
02 — Side by side

Every spec in one table

Highlighted cells lead their row. Dashes mean the data is not published.

GPT-5.4 nano vs DeepSeek V3 0324 specifications side by side
SpecificationGPT-5.4 nanoOpenAIDeepSeek V3 0324DeepSeek
Capability
Capabilities Index (ECI)145.8 (best)135.9
ECI rank#75 of 148 (best)#114 of 148
GPQA DiamondGraduate-level science questions78.5% (best)67.6%
FrontierMath Tiers 1–3Research-level mathematics44.9%—
OTIS Mock AIME 2024–2025Competition mathematics87.8% (best)37.8%
SimpleQA VerifiedShort factual questions11.7%—
Price per million tokens
Input$0.20 (best)$0.24
Output$1.25$0.90 (best)
Cached input$0.02—
Blended (3:1)$0.463$0.405 (best)
Long-context rateSame rateSame rate
Price sourceOfficial OpenAI APIMedian of 5 providers
Limits
Context window400,000 tokens (best)163,840 tokens
Max output128,000 tokens163,840 tokens (best)
Inputs and features
TextYesYes
ImagesYesNo
PDFsNoNo
AudioNoNo
VideoNoNo
ReasoningYeslow · medium · high · xhighNo
Tool callingYesYes
Structured outputYesNo
Availability
WeightsProprietaryOpen
API model IDgpt-5.4-nano—
API providers26 (best)5
ReleasedMar 17, 2026Mar 24, 2025
Knowledge cutoffAug 31, 2025—
03 — Cost

What would a month cost?

Enter your expected volume in millions of tokens. List prices only; caching and batch discounts would lower these.

  • GPT-5.4 nano$4.50
  • DeepSeek V3 0324$4.20
04 — Questions

Which should you choose?

Which is better: GPT-5.4 nano or DeepSeek V3 0324?

GPT-5.4 nano is the better all-round choice, scoring 68/100 against DeepSeek V3 0324 (54). It leads on capability, inputs & features and context window. DeepSeek V3 0324 wins on price. The score weighs capability 50%, price 25%, inputs & features 15%, context window 10%.

Which is cheaper, GPT-5.4 nano or DeepSeek V3 0324?

DeepSeek V3 0324 is cheaper at $0.24 input / $0.90 output per million tokens (median across 5 API providers). GPT-5.4 nano costs $0.20 input / $1.25 output per million tokens (official OpenAI API price). At a typical mix of three input tokens to one output token, that is $0.405 per million tokens for DeepSeek V3 0324 versus $0.463 for GPT-5.4 nano (1.1× as much).

Which scores higher on benchmarks?

GPT-5.4 nano scores higher on the Capabilities Index (ECI): GPT-5.4 nano 145.8 (#75 of 148) and DeepSeek V3 0324 135.9 (#114 of 148). Their confidence ranges do not overlap (143.2–147.7 vs 132.4–138.0), so the gap is a real one. On individual benchmarks: GPQA Diamond — GPT-5.4 nano 78.5%, DeepSeek V3 0324 67.6%; OTIS Mock AIME 2024–2025 — GPT-5.4 nano 87.8%, DeepSeek V3 0324 37.8%.

Which is better for coding?

There are no published SWE-bench Verified results for GPT-5.4 nano and DeepSeek V3 0324 yet, so there is no like-for-like coding score. On overall capability, GPT-5.4 nano leads, which tends to carry over to coding, but test on your own codebase. Both support tool calling for agent workflows.

Which has the bigger context window?

GPT-5.4 nano has the largest context window at 400,000 tokens, against 163,840 for DeepSeek V3 0324. Maximum output per response: GPT-5.4 nano up to 128,000, DeepSeek V3 0324 up to 163,840 tokens.

Which can read images, PDFs, audio or video?

GPT-5.4 nano accepts text and images; DeepSeek V3 0324 accepts text. GPT-5.4 nano handles the widest range of inputs.

Are any of these open source?

DeepSeek V3 0324 publishes its weights and can be self-hosted; GPT-5.4 nano is proprietary.

Which is newer?

GPT-5.4 nano is the newest, released Mar 17, 2026. DeepSeek V3 0324 came out Mar 24, 2025. Knowledge cutoff: GPT-5.4 nano Aug 31, 2025.

How do you decide the winner?

Each model gets a 0–100 score on capability (50%, independent benchmark results); price (25%, blended price per million tokens (3 input : 1 output), log scale); inputs & features (15%, image, PDF, audio and video input, tool calling, structured output and reasoning); context window (10%, maximum tokens per request, log scale). Dimensions missing for any model are dropped and the remaining weights rescaled, so every model is judged on the same evidence. Specs and prices come from public model listings and the labs’ own API pages; capability scores come from independent benchmark runs. Data updated Oct 4, 2026.

05 — Keep comparing

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