Pairwise benchmark snapshot · Aug 1, 2026

FLUX.1 [schnell] vs Nano Banana 2 (Gemini 3.1 Flash Image) benchmark

Name: FLUX.1 [schnell] vs Nano Banana 2 (Gemini 3.1 Flash Image) AI benchmark comparison
Creator: CompareLLM
License: https://creativecommons.org/licenses/by/4.0/

Comparing verified benchmark accuracy, speed, and token pricing between FLUX.1 [schnell] and Nano Banana 2 (Gemini 3.1 Flash Image). Review the complete breakdown below to determine which model best fits your performance and budget requirements.

Share Analysis:

Verified Head-to-Head Advantage Breakdown

5 direct benchmark disciplines evaluated across capability, speed, and cost

FLUX.1 [schnell] (2)Nano Banana 2 (Gemini 3.1 Flash Image) (3)

FLUX.1 [schnell]

2 of 5 Wins

✓Generation time✓Price per 1k images

Nano Banana 2 (Gemini 3.1 Flash Image)

3 of 5 Wins

✓Image Elo✓Prompt adherence✓Text rendering

Black Forest Labs

Leads 2 of 5 metrics

FLUX.1 [schnell]

Apache 2.0 4-step distilled open weights model optimized for local inference and instant preview generation.

Schnell 4-StepImg Elo 1,142$15/1k imgs

Google

Leads 3 of 5 metrics

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

FLUX.1 Series Lineage & Sibling Variants

3 models

Currently comparing FLUX.1 [schnell] vs Nano Banana 2 (Gemini 3.1 Flash Image). Alternative family tiers available.

Active: FLUX.1 [schnell]

FLUX.1.1 [pro]$50/1k FLUX.1 [dev]$30/1k

Top Rival Showdowns for FLUX.1 [schnell]

All Matchups

Compare vs:vs GPT Image 2 (High)vs Reve 2.1 vs Nano Banana Pro (Gemini 3 Pro Image)vs Ideogram 4.0 (Quality)vs Recraft V4.1 Utility Pro

Image Quality LeaderNano Banana 2 (Gemini 3.1 Flash Image) Wins

Nano Banana 2 (Gemini 3.1 Flash Image)

Δ 181 Image Elo pts

Generation Speed LeaderFLUX.1 [schnell] Wins

FLUX.1 [schnell]

1.2s per render

Value per Dollar LeaderFLUX.1 [schnell] Wins

FLUX.1 [schnell]

$15/1k images

Head-to-Head Comparison

Overall Matchup Breakdown

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

FLUX.1 [schnell] (2)vsNano Banana 2 (Gemini 3.1 Flash Image) (3)

FLUX.1 [schnell]: 2W (40%)Overall: Nano Banana 2 (Gemini 3.1 Flash Image)Nano Banana 2 (Gemini 3.1 Flash Image): 3W (60%)

← FLUX.1 [schnell]Nano Banana 2 (Gemini 3.1 Flash Image) →

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

Visual Quality & Adherence

Arena Preference Elo, prompt fidelity & typography score

Benchmark

FLUX.1 [schnell]vsNano Banana 2 (Gemini 3.1 Flash Image)

Image Elo

1,142vs1,323+181

Prompt adherence

84%vs93.8%+9.8%

Text rendering

82%vs94.2%+12.2%

FLUX.1 [schnell]: 0WNano Banana 2 (Gemini 3.1 Flash Image): 3W

🏆FLUX.1 [schnell](1/1)

Generation Latency

Time to render full-resolution image snapshot (seconds)

Benchmark

FLUX.1 [schnell]vsNano Banana 2 (Gemini 3.1 Flash Image)

Generation time

1.2svs2.5s+1.3s

FLUX.1 [schnell]: 1WNano Banana 2 (Gemini 3.1 Flash Image): 0W

🏆FLUX.1 [schnell](1/1)

Cost Efficiency

API inference cost per 1,000 generated images

Benchmark

FLUX.1 [schnell]vsNano Banana 2 (Gemini 3.1 Flash Image)

Price per 1k images

$15/1kvs$67/1k+$52/1k

FLUX.1 [schnell]: 1WNano Banana 2 (Gemini 3.1 Flash Image): 0W

Side-by-Side Benchmark Matrix

Image Elo+181

FLUX.1 [schnell]1,142

seed-bootstrap · Aug 1, 2026

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

seed-bootstrap · Aug 1, 2026

Generation time+1.3s

FLUX.1 [schnell]1.2s

seed-bootstrap · Aug 1, 2026

Nano Banana 2 (Gemini 3.1 Flash Image)2.5s

seed-bootstrap · Aug 1, 2026

Price per 1k images+$52/1k

FLUX.1 [schnell]$15/1k

seed-bootstrap · Aug 1, 2026

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

seed-bootstrap · Aug 1, 2026

Prompt adherence+9.8%

FLUX.1 [schnell]84%

seed-bootstrap · Aug 1, 2026

Nano Banana 2 (Gemini 3.1 Flash Image)93.8%

seed-bootstrap · Aug 1, 2026

Text rendering+12.2%

FLUX.1 [schnell]82%

seed-bootstrap · Aug 1, 2026

Nano Banana 2 (Gemini 3.1 Flash Image)94.2%

seed-bootstrap · Aug 1, 2026

Benchmark	FLUX.1 [schnell]	Nano Banana 2 (Gemini 3.1 Flash Image)	Advantage Delta
Image Elo	1,142 seed-bootstrap · Aug 1, 2026	1,323 seed-bootstrap · Aug 1, 2026	+181
Generation time	1.2s seed-bootstrap · Aug 1, 2026	2.5s seed-bootstrap · Aug 1, 2026	+1.3s
Price per 1k images	$15/1k seed-bootstrap · Aug 1, 2026	$67/1k seed-bootstrap · Aug 1, 2026	+$52/1k
Prompt adherence	84% seed-bootstrap · Aug 1, 2026	93.8% seed-bootstrap · Aug 1, 2026	+9.8%
Text rendering	82% seed-bootstrap · Aug 1, 2026	94.2% seed-bootstrap · Aug 1, 2026	+12.2%

Interactive Simulator (USD)

Workload Cost & Savings Calculator

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

Save up to 78% with FLUX.1 [schnell]

Monthly Image Production Volume25k images / month (25000 imgs)

Quick Presets:

FLUX.1 [schnell]$375.00 / mo

Rate: $15/1k

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

Rate: $67/1k

Estimated Cost Delta

FLUX.1 [schnell] is estimated to save $1,300.00/month ($15,600/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

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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

Black Forest Labs

FLUX.1 [schnell]

Elo n/a

SWE-bench—

Speed (tok/s)—

Input / 1M Tokens$15/1k

Output / 1M Tokens$15/1k

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

Frequently Asked Questions

Which is better overall, FLUX.1 [schnell] or Nano Banana 2 (Gemini 3.1 Flash 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, FLUX.1 [schnell] or Nano Banana 2 (Gemini 3.1 Flash 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, FLUX.1 [schnell] or Nano Banana 2 (Gemini 3.1 Flash 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?: FLUX.1 [schnell] is marked open-weights in our catalog. The other side is a closed API. Check the provider license before you ship weights.
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. FLUX.1 [schnell] and Nano Banana 2 (Gemini 3.1 Flash Image) Elo cells are dated snapshots from the named source — we do not compute Arena ourselves.

Similar Head-to-Head Comparisons

All FLUX.1 [schnell] matchups →|All Nano Banana 2 (Gemini 3.1 Flash Image) matchups →

FLUX.1 [schnell] vs FLUX.1 [dev] (previous flux)FLUX.1 [schnell] vs FLUX.1.1 [pro] (next flux)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)FLUX.2 [max] vs Nano Banana 2 (Gemini 3.1 Flash Image)FLUX.2 [flex] vs Nano Banana 2 (Gemini 3.1 Flash Image)

Benchmark

FLUX.1 [schnell]

Nano Banana 2 (Gemini 3.1 Flash Image)

Advantage Delta

Image Elo

1,142

seed-bootstrap · Aug 1, 2026

1,323

seed-bootstrap · Aug 1, 2026

+181

Generation time

1.2s

seed-bootstrap · Aug 1, 2026

2.5s

seed-bootstrap · Aug 1, 2026

+1.3s

Price per 1k images

$15/1k

seed-bootstrap · Aug 1, 2026

$67/1k

seed-bootstrap · Aug 1, 2026

+$52/1k

Prompt adherence

84%

seed-bootstrap · Aug 1, 2026

93.8%

seed-bootstrap · Aug 1, 2026

+9.8%

Text rendering

82%

seed-bootstrap · Aug 1, 2026

94.2%

seed-bootstrap · Aug 1, 2026

+12.2%

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, FLUX.1 [schnell] or Nano Banana 2 (Gemini 3.1 Flash 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, FLUX.1 [schnell] or Nano Banana 2 (Gemini 3.1 Flash 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, FLUX.1 [schnell] or Nano Banana 2 (Gemini 3.1 Flash 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?

FLUX.1 [schnell] is marked open-weights in our catalog. The other side is a closed API. Check the provider license before you ship weights.

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. FLUX.1 [schnell] and Nano Banana 2 (Gemini 3.1 Flash Image) Elo cells are dated snapshots from the named source — we do not compute Arena ourselves.