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Comparison · 2 models · Updated Oct 4, 2026

Gemini 3 Pro Preview vs GPT-5.4 mini

Gemini 3 Pro Preview comes out ahead, 67 to 63 on our weighted score, though GPT-5.4 mini is 2.7× cheaper per token.

  1. Our pick

    Google

    Gemini 3 Pro Preview

    Released Nov 18, 2025

    67/100
    • ECI153.0
    • Price$2.00 / $12.00
    • Context1.05M
    Full specs Remove Gemini 3 Pro Preview

  2. OpenAI

    GPT-5.4 mini

    Released Mar 17, 2026

    63/100
    • ECI148.8
    • Price$0.75 / $4.50
    • Context400K
    Full specs Remove GPT-5.4 mini

  3. Add a model

    Make it a three-way comparison.

01 — Verdict

Gemini 3 Pro Preview is our pick

Gemini 3 Pro Preview is the better all-round choice, scoring 67/100 against GPT-5.4 mini (63). It leads on capability, inputs & features and context window. GPT-5.4 mini wins on price. The score weighs capability 50%, price 25%, inputs & features 15%, context window 10%.

  • CapabilityGemini 3 Pro PreviewCapabilities Index (ECI): Gemini 3 Pro Preview 153.0 · GPT-5.4 mini 148.8
  • Lowest priceGPT-5.4 miniGPT-5.4 mini $1.69 · Gemini 3 Pro Preview $4.50 per 1M tokens (3:1 blend)
  • Longest contextGemini 3 Pro PreviewGemini 3 Pro Preview 1,048,576 · GPT-5.4 mini 400,000 tokens
  • Widest inputsGemini 3 Pro PreviewGemini 3 Pro Preview: Text, Images, PDFs, Audio, Video · GPT-5.4 mini: Text, Images
  • Self-hostingNo open weightsBoth are available only through APIs
How the score is built
MeasureWeightGemini 3 Pro PreviewGPT-5.4 mini
CapabilityCapabilities Index (ECI)50%8277
Price25%1939
Inputs & features15%10070
Context window10%6144
Overall100%67/10063/100
02 — Side by side

Every spec in one table

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

Gemini 3 Pro Preview vs GPT-5.4 mini specifications side by side
SpecificationGemini 3 Pro PreviewGoogleGPT-5.4 miniOpenAI
Capability
Capabilities Index (ECI)153.0 (best)148.8
ECI rank#39 of 148 (best)#56 of 148
GPQA DiamondGraduate-level science questions92.6% (best)86.9%
FrontierMath Tiers 1–3Research-level mathematics—51.2%
OTIS Mock AIME 2024–2025Competition mathematics91.4% (best)88.9%
SWE-bench VerifiedFixing real GitHub issues72.9%—
SimpleQA VerifiedShort factual questions—29.4%
Price per million tokens
Input$2.00$0.75 (best)
Output$12.00$4.50 (best)
Cached input—$0.075
Blended (3:1)$4.50$1.69 (best)
Long-context rateSame rateSame rate
Price sourceMedian of 2 providersOfficial OpenAI API
Limits
Context window1,048,576 tokens (best)400,000 tokens
Max output65,536 tokens128,000 tokens (best)
Inputs and features
TextYesYes
ImagesYesYes
PDFsYesNo
AudioYesNo
VideoYesNo
ReasoningYesYeslow · medium · high · xhigh
Tool callingYesYes
Structured outputYesYes
Availability
WeightsProprietaryProprietary
API model ID—gpt-5.4-mini
API providers329 (best)
ReleasedNov 18, 2025Mar 17, 2026
Knowledge cutoffJan 2025Aug 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.

  • Gemini 3 Pro Preview$44.00
  • GPT-5.4 mini$16.50
04 — Questions

Which should you choose?

Which is better: Gemini 3 Pro Preview or GPT-5.4 mini?

Gemini 3 Pro Preview is the better all-round choice, scoring 67/100 against GPT-5.4 mini (63). It leads on capability, inputs & features and context window. GPT-5.4 mini wins on price. The score weighs capability 50%, price 25%, inputs & features 15%, context window 10%.

Which is cheaper, Gemini 3 Pro Preview or GPT-5.4 mini?

GPT-5.4 mini is cheaper at $0.75 input / $4.50 output per million tokens (official OpenAI API price). Gemini 3 Pro Preview costs $2.00 input / $12.00 output per million tokens (median across 2 API providers). At a typical mix of three input tokens to one output token, that is $1.69 per million tokens for GPT-5.4 mini versus $4.50 for Gemini 3 Pro Preview (2.7× as much).

Which scores higher on benchmarks?

Gemini 3 Pro Preview scores higher on the Capabilities Index (ECI): Gemini 3 Pro Preview 153.0 (#39 of 148) and GPT-5.4 mini 148.8 (#56 of 148). Their confidence ranges do not overlap (150.6–155.2 vs 147.1–150.5), so the gap is a real one. On individual benchmarks: GPQA Diamond — Gemini 3 Pro Preview 92.6%, GPT-5.4 mini 86.9%; OTIS Mock AIME 2024–2025 — Gemini 3 Pro Preview 91.4%, GPT-5.4 mini 88.9%.

Which is better for coding?

There are no published SWE-bench Verified results for GPT-5.4 mini yet, so there is no like-for-like coding score. On overall capability, Gemini 3 Pro Preview 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?

Gemini 3 Pro Preview has the largest context window at 1,048,576 tokens, against 400,000 for GPT-5.4 mini. Maximum output per response: Gemini 3 Pro Preview up to 65,536, GPT-5.4 mini up to 128,000 tokens.

Which can read images, PDFs, audio or video?

Gemini 3 Pro Preview accepts text, images, PDFs, audio and video; GPT-5.4 mini accepts text and images. Gemini 3 Pro Preview handles the widest range of inputs.

Are any of these open source?

No. Gemini 3 Pro Preview and GPT-5.4 mini are proprietary and only available through APIs and apps.

Which is newer?

GPT-5.4 mini is the newest, released Mar 17, 2026. Gemini 3 Pro Preview came out Nov 18, 2025. Knowledge cutoff: Gemini 3 Pro Preview Jan 2025, GPT-5.4 mini 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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