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  3. GPT-4o vs Nano Banana Pro (Gemini 3 Pro Image)

Pairwise benchmark snapshot · Aug 17, 2026noindex (thin pair)

GPT-4o vs Nano Banana Pro (Gemini 3 Pro Image) benchmark

This page compares GPT-4o (OpenAI) and Nano Banana Pro (Gemini 3 Pro Image) (Google) using the latest snapshots we have as of Aug 17, 2026. Every cell below is a dated snapshot from a named public source — we do not invent missing scores, and we do not run SWE-bench ourselves.

Quick answer

GPT-4o vs Nano Banana Pro (Gemini 3 Pro Image) is a dated snapshot, not a lab score. Elo is crowd preference, not an exam. Pick the column that matches the job.
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OpenAI

GPT-4o

Previous OpenAI flagship. Still a common compare baseline on legacy pages.

Img Elo 1,335

Google

Nano Banana Pro (Gemini 3 Pro Image)

Google DeepMind frontier multimodal image generation flagship with Deep Research and complex multi-object spatial reasoning.

Img Elo 1,299$134/1k imgs

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Model A
Model B
Quick vs:vs Claude Opus 4.5vs Claude Opus 4.6vs Claude Sonnet 4.5vs Claude 3.7 Sonnet

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Matchup Breakdown

Tug-of-War Matchup Matrix

Category wins across intelligence, speed, and pricing efficiency.

GPT-4o (0)vsNano Banana Pro (Gemini 3 Pro Image) (5)
GPT-4o: 0W (0%)Overall: Nano Banana Pro (Gemini 3 Pro Image)Nano Banana Pro (Gemini 3 Pro Image): 5W (100%)
← GPT-4oNano Banana Pro (Gemini 3 Pro Image) →
Nano Banana Pro (Gemini 3 Pro Image) (3/3)

Visual Quality & Adherence

Arena Preference Elo, prompt fidelity & typography score

Image Elo
—vs1,299
Prompt adherence
—vs92.5%
Text rendering
—vs93%
GPT-4o: 0WNano Banana Pro (Gemini 3 Pro Image): 3W
Nano Banana Pro (Gemini 3 Pro Image) (1/1)

Generation Latency

Time to render full-resolution image snapshot (seconds)

Generation time
—vs4.2s
GPT-4o: 0WNano Banana Pro (Gemini 3 Pro Image): 1W
Nano Banana Pro (Gemini 3 Pro Image) (1/1)

Cost Efficiency

API inference cost per 1,000 generated images

Price per 1k images
—vs$134/1k
GPT-4o: 0WNano Banana Pro (Gemini 3 Pro Image): 1W
Capability Matchup Radar

Multi-Dimensional Capability Radar

Each spoke is a skill. Farther from the center is better (0–100th percentile). Tap any dot to inspect details.

Tap any node to inspect
Percentile 0–100
Dimensional AdvantageNano Banana Pro (Gemini 3 Pro Image) 5/6
Image Preference Elo

No shared data

No shared data

Generation Latency

No shared data

No shared data

Image Price Efficiency

No shared data

No shared data

Full Benchmark Score Matrix

—
Img Elo
High is better
—
Img EloHigh is better
1,299
Gen Time
Low is better
—
Gen TimeLow is better
4.2s
Img $
Low is better
—
Img $Low is better
$134/1k
Prompt %
High is better
—
Prompt %High is better
92.5%
Text %
High is better
—
Text %High is better
93%
Interactive Simulator (USD)

Workload Cost & Savings Calculator

Simulate monthly production API costs in USD (US Dollar).

Save up to 100% with GPT-4o
Monthly Image Production Volume25k images / month (25000 imgs)
Quick Presets:
GPT-4o$0.00 / mo
Rate: $0/1k
Nano Banana Pro (Gemini 3 Pro Image)$3,350.00 / mo
Rate: $134/1k
Estimated Cost Delta

GPT-4o is estimated to save $3,350.00/month ($40,200/year).

Based on 25k images generated

Recommended Workload Routing

Repo / coding agentsinsufficient data

Need SWE-bench on both sides.

High-volume chatinsufficient data

Need list prices.

Voice / low-latency UIinsufficient data

Need TTFT on both sides.

Long-document RAGinsufficient data

Need context sizes.

Screenshots / visioninsufficient data

Both accept images. Defaulting to the higher-Elo side (undefined).

Target WorkloadRecommended PickEvaluation Rationale
Repo / coding agentsinsufficient dataNeed SWE-bench on both sides.
High-volume chatinsufficient dataNeed list prices.
Voice / low-latency UIinsufficient dataNeed TTFT on both sides.
Long-document RAGinsufficient dataNeed context sizes.
Screenshots / visioninsufficient dataBoth accept images. Defaulting to the higher-Elo side (undefined).

Related Editorial Dispatches & Benchmark Notes

View all news
newsMay 13, 2024

GPT-4o stays as the 2024 compare anchor people still search

Deprecated for buying. Kept because “4o vs sonnet” is still a typed query.

Community Sentiment

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CompareLLM Matrix

Verified head-to-head card

LIVE
VS
OpenAI

GPT-4o

Elo 1,335
LiveBench54.2%
SWE-bench54.8%
Speed110 tok/s
Output cost$10/1M
Google

Nano Banana Pro (Gemini 3 Pro Image)

Elo n/a
LiveBench—
SWE-bench—
Speed—
Output cost—

Frequently Asked Questions

Which is better overall, GPT-4o or Nano Banana Pro (Gemini 3 Pro Image)?
We do not have preference Elo for both models, so we do not declare an overall winner. Compare the metrics that exist.
Which is better at coding, GPT-4o or Nano Banana Pro (Gemini 3 Pro Image)?
SWE-bench is missing for at least one model, so we do not rank coding from a single number.
Which is cheaper to run in production?
List prices are missing for at least one model.
Which is faster, GPT-4o or Nano Banana Pro (Gemini 3 Pro Image)?
We do not have TTFT for both models.
Which has the larger context window?
Context window is missing for at least one model.
Can I self-host either model?
Neither model is marked open-weights here. You are comparing hosted APIs.
Are these scores from CompareLLM’s own evals?
No. V1 aggregates public leaderboards (and optional first-party latency pings). Each cell names its source and date. Read /methodology.
What does preference Elo mean on this page?
Preference Elo is a crowd vote from LMArena / Arena. People see two hidden answers and pick the one they like more. The model that wins more often gets a higher Elo. That means people preferred it — not that it passed a school test. It is not SWE-bench, not accuracy, and not a number we invent. GPT-4o and Nano Banana Pro (Gemini 3 Pro Image) Elo cells are dated snapshots from the named source — we do not compute Arena ourselves.

Related news

  • news · May 13, 2024

    GPT-4o stays as the 2024 compare anchor people still search

Similar Head-to-Head Comparisons

All GPT-4o matchups →|All Nano Banana Pro (Gemini 3 Pro Image) matchups →
GPT-4o vs GPT-4 Turbo (previous gpt-flagship)GPT-4o vs OpenAI: o1 (next gpt-flagship)Nano Banana Pro (Gemini 3 Pro Image) vs Nano Banana 2 (Gemini 3.1 Flash Image) (next nano-banana)Gemini 2.0 Flash Thinking vs GPT-4oGPT-5 vs GPT-4oGemini 3 Pro vs GPT-4o