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

Nano Banana 2 (Gemini 3.1 Flash Image) vs Yi-Lightning benchmark

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

This page compares Nano Banana 2 (Gemini 3.1 Flash Image) (Google) and Yi-Lightning (01.AI) 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.

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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

01.AI

Yi-Lightning

01.AI ultra-fast reasoning model delivering top LiveBench efficiency.

LightningImg Elo 1,475

Model Lineage & Multi-Tier Derivatives

Nano Banana (Gemini Image) Family (3 models)

Compare vs Base (Nano Banana Pro (Gemini 3 Pro Image))

Nano Banana Pro (Gemini 3 Pro Image)

Google

Flagship Base

Elo

1299

Latency

4.2s

Price

$134/1k

View model →vs this

Nano Banana 2 (Gemini 3.1 Flash Image)

Google

Flash Image

Elo

1323

Latency

2.5s

Price

$67/1k

+24 Elo-50% cost

Viewing now

Nano Banana 2 Lite

Google

Lite / Sub-1.5s

Elo

1293

Latency

1.4s

Price

$33.6/1k

-6 Elo-75% cost

View model →vs this

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Instant pairwise benchmark recalculation across 400+ LLMs

Model A

Model B

Quick vs:vs Claude Opus 4.5 vs Claude Opus 4.6 vs Claude Sonnet 4.5 vs Claude 3.7 Sonnet

Interactive Comparison Diagram

Matchup Breakdown

Tug-of-War Matchup Matrix

Category wins across intelligence, speed, and pricing efficiency.

Nano Banana 2 (Gemini 3.1 Flash Image) (5)vsYi-Lightning (0)

Nano Banana 2 (Gemini 3.1 Flash Image): 5W (100%)Overall: Nano Banana 2 (Gemini 3.1 Flash Image)Yi-Lightning: 0W (0%)

← Nano Banana 2 (Gemini 3.1 Flash Image)Yi-Lightning →

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

Visual Quality & Adherence

Arena Preference Elo, prompt fidelity & typography score

Image Elo

1,323vs—

Prompt adherence

93.8%vs—

Text rendering

94.2%vs—

Nano Banana 2 (Gemini 3.1 Flash Image): 3WYi-Lightning: 0W

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

Generation Latency

Time to render full-resolution image snapshot (seconds)

Generation time

2.5svs—

Nano Banana 2 (Gemini 3.1 Flash Image): 1WYi-Lightning: 0W

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

Cost Efficiency

API inference cost per 1,000 generated images

Price per 1k images

$67/1kvs—

Nano Banana 2 (Gemini 3.1 Flash Image): 1WYi-Lightning: 0W

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 2 (Gemini 3.1 Flash Image) 5/6

Image Preference Elo

No shared data

Generation Latency

No shared data

Image Price Efficiency

No shared data

Full Benchmark Score Matrix

—

Img Elo

High is better

1,323

Img EloHigh is better

—

Gen Time

Low is better

2.5s

Gen TimeLow is better

—

Img $

Low is better

$67/1k

Img $Low is better

—

Prompt %

High is better

93.8%

Prompt %High is better

—

Text %

High is better

94.2%

Text %High is better

—

Interactive Simulator (USD)

Workload Cost & Savings Calculator

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

Save up to 100% with Yi-Lightning

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

Yi-Lightning$0.00 / mo

Rate: $0/1k

Estimated Cost Delta

Yi-Lightning 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 / visionNano Banana 2 (Gemini 3.1 Flash Image)

Nano Banana 2 (Gemini 3.1 Flash Image) is the side marked multimodal in the catalog.

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	Nano Banana 2 (Gemini 3.1 Flash Image)	Nano Banana 2 (Gemini 3.1 Flash Image) is the side marked multimodal in the catalog.

Community Sentiment

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The real PNG is generated at /compare/nano-banana-2-vs-yi-lightning/opengraph-image for crawlers.

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CompareLLM Matrix

Verified head-to-head card

LIVE

Google

Nano Banana 2 (Gemini 3.1 Flash Image)

Elo n/a

LiveBench—

SWE-bench—

Speed—

Output cost—

01.AI

Yi-Lightning

Elo 1,475

LiveBench65%

SWE-bench63.4%

Speed130 tok/s

Output cost$0.14/1M

Frequently Asked Questions

Which is better overall, Nano Banana 2 (Gemini 3.1 Flash Image) or Yi-Lightning?: 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 Yi-Lightning?: 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 Yi-Lightning?: 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 Yi-Lightning 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 Yi-Lightning 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)Yi-Lightning vs Yi-Large (previous other)Yi-Lightning vs Ernie 4.5 Turbo (next other)Gemini 3 Pro vs Yi-Lightning Gemini 3 Flash vs Yi-Lightning

Interactive Comparison Diagram

Matchup Breakdown

Tug-of-War Matchup Matrix

Category wins across intelligence, speed, and pricing efficiency.

Nano Banana 2 (Gemini 3.1 Flash Image) (5)vsYi-Lightning (0)

Nano Banana 2 (Gemini 3.1 Flash Image): 5W (100%)Overall: Nano Banana 2 (Gemini 3.1 Flash Image)Yi-Lightning: 0W (0%)

← Nano Banana 2 (Gemini 3.1 Flash Image)Yi-Lightning →

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

Visual Quality & Adherence

Arena Preference Elo, prompt fidelity & typography score

Image Elo

1,323vs—

Prompt adherence

93.8%vs—

Text rendering

94.2%vs—

Nano Banana 2 (Gemini 3.1 Flash Image): 3WYi-Lightning: 0W

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

Generation Latency

Time to render full-resolution image snapshot (seconds)

Generation time

2.5svs—

Nano Banana 2 (Gemini 3.1 Flash Image): 1WYi-Lightning: 0W

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

Cost Efficiency

API inference cost per 1,000 generated images

Price per 1k images

$67/1kvs—

Nano Banana 2 (Gemini 3.1 Flash Image): 1WYi-Lightning: 0W

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 / visionNano Banana 2 (Gemini 3.1 Flash Image)

Nano Banana 2 (Gemini 3.1 Flash Image) is the side marked multimodal in the catalog.

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	Nano Banana 2 (Gemini 3.1 Flash Image)	Nano Banana 2 (Gemini 3.1 Flash Image) is the side marked multimodal in the catalog.

Frequently Asked Questions

Which is better overall, Nano Banana 2 (Gemini 3.1 Flash Image) or Yi-Lightning?

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 Yi-Lightning?

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 Yi-Lightning?

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 Yi-Lightning Elo cells are dated snapshots from the named source — we do not compute Arena ourselves.