Pairwise benchmark snapshot · Aug 1, 2026noindex (thin pair)

Nano Banana 2 (Gemini 3.1 Flash Image) vs OpenAI o1 benchmark

Name: Nano Banana 2 (Gemini 3.1 Flash Image) vs OpenAI o1 AI benchmark comparison
Creator: CompareLLM
License: https://creativecommons.org/licenses/by/4.0/

Comparing verified benchmark accuracy, speed, and token pricing between Nano Banana 2 (Gemini 3.1 Flash Image) and OpenAI o1. Review the complete breakdown below to determine which model best fits your performance and budget requirements.

Share Analysis:

Google

Nano Banana 2 (Gemini 3.1 Flash Image)

Google high-speed multimodal generative model delivering top Elo performance at half the latency and cost of Pro.

Flash ImageImg Elo 1,323$67/1k imgs

OpenAI

OpenAI o1

OpenAI pioneer reasoning foundation model designed for complex science, math, and multi-step reasoning.

Img Elo 1,512

Nano Banana (Gemini Image) Lineage & Sibling Variants

3 models

Currently comparing Nano Banana 2 (Gemini 3.1 Flash Image) vs OpenAI o1. Alternative family tiers available.

Active: Nano Banana 2 (Gemini 3.1 Flash Image)

Nano Banana Pro (Gemini 3 Pro Image)$134/1k Nano Banana 2 Lite$33.6/1k

OpenAI o1 Thinking Depth & Cost Scaler

Model B

Simulate accuracy gains vs added response time & token cost

Mode: Medium (Standard)

Reasoning models “think before answering” by generating internal reasoning tokens. Higher effort improves math, coding, and logic accuracy, but increases response delay and token costs.

Thinking Delay

420 ms

Standard speed

Reasoning Depth

~1,500

Internal tokens

Cost / 1k Calls

$115.50

4.5× standard bill

Accuracy Boost

+4.5% accuracy

STEM & SWE-bench

Top Rival Showdowns for Nano Banana 2 (Gemini 3.1 Flash Image)

All Matchups

Compare vs:vs GPT Image 2 (High)vs Reve 2.1 vs FLUX.2 [max]vs Ideogram 4.0 (Quality)vs Recraft V4.1 Utility Pro

Image Quality Leader

No shared data

Single model data

Generation Speed Leader

No shared data

No latency data

Value per Dollar Leader

No shared data

Unpriced

Head-to-Head Comparison

Overall Matchup Breakdown

Category wins across reasoning intelligence, generation speed, and token cost.

Nano Banana 2 (Gemini 3.1 Flash Image) (5)vsOpenAI o1 (0)

Nano Banana 2 (Gemini 3.1 Flash Image): 5W (100%)Overall: Nano Banana 2 (Gemini 3.1 Flash Image)OpenAI o1: 0W (0%)

← Nano Banana 2 (Gemini 3.1 Flash Image)OpenAI o1 →

🏆Nano Banana 2 (Gemini 3.1 Flash Image)(3/3)

Visual Quality & Adherence

Arena Preference Elo, prompt fidelity & typography score

Benchmark

Nano Banana 2 (Gemini 3.1 Flash Image)vsOpenAI o1

Image Elo

1,323vs—

Prompt adherence

93.8%vs—

Text rendering

94.2%vs—

Nano Banana 2 (Gemini 3.1 Flash Image): 3WOpenAI o1: 0W

🏆Nano Banana 2 (Gemini 3.1 Flash Image)(1/1)

Generation Latency

Time to render full-resolution image snapshot (seconds)

Benchmark

Nano Banana 2 (Gemini 3.1 Flash Image)vsOpenAI o1

Generation time

2.5svs—

Nano Banana 2 (Gemini 3.1 Flash Image): 1WOpenAI o1: 0W

🏆Nano Banana 2 (Gemini 3.1 Flash Image)(1/1)

Cost Efficiency

API inference cost per 1,000 generated images

Benchmark

Nano Banana 2 (Gemini 3.1 Flash Image)vsOpenAI o1

Price per 1k images

$67/1kvs—

Nano Banana 2 (Gemini 3.1 Flash Image): 1WOpenAI o1: 0W

Side-by-Side Benchmark Matrix

Image Elo

Nano Banana 2 (Gemini 3.1 Flash Image)1,323

seed-bootstrap · Aug 1, 2026

OpenAI o1—

Generation time

Nano Banana 2 (Gemini 3.1 Flash Image)2.5s

seed-bootstrap · Aug 1, 2026

OpenAI o1—

Price per 1k images

Nano Banana 2 (Gemini 3.1 Flash Image)$67/1k

seed-bootstrap · Aug 1, 2026

OpenAI o1—

Prompt adherence

Nano Banana 2 (Gemini 3.1 Flash Image)93.8%

seed-bootstrap · Aug 1, 2026

OpenAI o1—

Text rendering

Nano Banana 2 (Gemini 3.1 Flash Image)94.2%

seed-bootstrap · Aug 1, 2026

OpenAI o1—

Benchmark	Nano Banana 2 (Gemini 3.1 Flash Image)	OpenAI o1	Advantage Delta
Image Elo	1,323 seed-bootstrap · Aug 1, 2026	—	—
Generation time	2.5s seed-bootstrap · Aug 1, 2026	—	—
Price per 1k images	$67/1k seed-bootstrap · Aug 1, 2026	—	—
Prompt adherence	93.8% seed-bootstrap · Aug 1, 2026	—	—
Text rendering	94.2% seed-bootstrap · Aug 1, 2026	—	—

Interactive Simulator (USD)

Workload Cost & Savings Calculator

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

Save up to 100% with OpenAI o1

Monthly Image Production Volume25k images / month (25000 imgs)

Quick Presets:

Nano Banana 2 (Gemini 3.1 Flash Image)$1,675.00 / mo

Rate: $67/1k

OpenAI o1$0.00 / mo

Rate: $0/1k

Estimated Cost Delta

OpenAI o1 is estimated to save $1,675.00/month ($20,100/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 Workload	Recommended Pick	Evaluation Rationale
Repo / coding agents	insufficient data	Need SWE-bench on both sides.
High-volume chat	insufficient data	Need list prices.
Voice / low-latency UI	insufficient data	Need TTFT on both sides.
Long-document RAG	insufficient data	Need context sizes.
Screenshots / vision	insufficient data	Both accept images. Defaulting to the higher-Elo side (undefined).

Community Sentiment

Cast Your Matchup Vote

0 total votes

Community Discussions (0)

No comments posted on this matchup yet. Be the first to share an evaluation note!

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CompareLLM AI Matrix

Verified Head-to-Head Telemetry

LIVE BENCHMARK

Google

Nano Banana 2 (Gemini 3.1 Flash Image)

Elo n/a

SWE-bench—

Speed (tok/s)—

Input / 1M Tokens$67/1k

Output / 1M Tokens$67/1k

OpenAI

OpenAI o1

Elo 1,512

SWE-bench48.9%

Speed (tok/s)45 tok/s

Input / 1M Tokens$15/1M

Output / 1M Tokens$60/1M

Frequently Asked Questions

Which is better overall, Nano Banana 2 (Gemini 3.1 Flash Image) or OpenAI o1?: 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, Nano Banana 2 (Gemini 3.1 Flash Image) or OpenAI o1?: 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, Nano Banana 2 (Gemini 3.1 Flash Image) or OpenAI o1?: 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. Nano Banana 2 (Gemini 3.1 Flash Image) and OpenAI o1 Elo cells are dated snapshots from the named source — we do not compute Arena ourselves.

Similar Head-to-Head Comparisons

All Nano Banana 2 (Gemini 3.1 Flash Image) matchups →|All OpenAI o1 matchups →

Nano Banana 2 (Gemini 3.1 Flash Image) vs Nano Banana Pro (Gemini 3 Pro Image) (previous nano-banana)Nano Banana 2 (Gemini 3.1 Flash Image) vs Nano Banana 2 Lite (next nano-banana)OpenAI o1 vs GPT-4o (previous gpt-flagship)OpenAI o1 vs GPT-4.5 Orion (next gpt-flagship)GPT-5 vs OpenAI o1 Gemini 3 Pro vs OpenAI o1

Side-by-Side Benchmark Matrix

Image Elo

Nano Banana 2 (Gemini 3.1 Flash Image)1,323

seed-bootstrap · Aug 1, 2026

OpenAI o1—

Generation time

Nano Banana 2 (Gemini 3.1 Flash Image)2.5s

seed-bootstrap · Aug 1, 2026

OpenAI o1—

Price per 1k images

Nano Banana 2 (Gemini 3.1 Flash Image)$67/1k

seed-bootstrap · Aug 1, 2026

OpenAI o1—

Prompt adherence

Nano Banana 2 (Gemini 3.1 Flash Image)93.8%

seed-bootstrap · Aug 1, 2026

OpenAI o1—

Text rendering

Nano Banana 2 (Gemini 3.1 Flash Image)94.2%

seed-bootstrap · Aug 1, 2026

OpenAI o1—

Benchmark	Nano Banana 2 (Gemini 3.1 Flash Image)	OpenAI o1	Advantage Delta
Image Elo	1,323 seed-bootstrap · Aug 1, 2026	—	—
Generation time	2.5s seed-bootstrap · Aug 1, 2026	—	—
Price per 1k images	$67/1k seed-bootstrap · Aug 1, 2026	—	—
Prompt adherence	93.8% seed-bootstrap · Aug 1, 2026	—	—
Text rendering	94.2% seed-bootstrap · Aug 1, 2026	—	—

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 Workload	Recommended Pick	Evaluation Rationale
Repo / coding agents	insufficient data	Need SWE-bench on both sides.
High-volume chat	insufficient data	Need list prices.
Voice / low-latency UI	insufficient data	Need TTFT on both sides.
Long-document RAG	insufficient data	Need context sizes.
Screenshots / vision	insufficient data	Both accept images. Defaulting to the higher-Elo side (undefined).

Frequently Asked Questions

Which is better overall, Nano Banana 2 (Gemini 3.1 Flash Image) or OpenAI o1?

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, Nano Banana 2 (Gemini 3.1 Flash Image) or OpenAI o1?

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, Nano Banana 2 (Gemini 3.1 Flash Image) or OpenAI o1?

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. Nano Banana 2 (Gemini 3.1 Flash Image) and OpenAI o1 Elo cells are dated snapshots from the named source — we do not compute Arena ourselves.