Pairwise benchmark snapshot · Aug 1, 2026

FLUX.1 [dev] vs GPT Image 2 (High) benchmark

Name: FLUX.1 [dev] vs GPT Image 2 (High) AI benchmark comparison
Creator: CompareLLM
License: https://creativecommons.org/licenses/by/4.0/

Comparing verified benchmark accuracy, speed, and token pricing between FLUX.1 [dev] and GPT Image 2 (High). 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 [dev] (2)GPT Image 2 (High) (3)

FLUX.1 [dev]

2 of 5 Wins

✓Generation time✓Price per 1k images

GPT Image 2 (High)

3 of 5 Wins

✓Image Elo✓Prompt adherence✓Text rendering

Black Forest Labs

Leads 2 of 5 metrics

FLUX.1 [dev]

Open-weights non-commercial base model with 12B parameters, serving as the foundation for the open-source fine-tuning ecosystem.

Open Dev 12BImg Elo 1,180$30/1k imgs

OpenAI

Leads 3 of 5 metrics

GPT Image 2 (High)

OpenAI flagship diffusion-transformer image synthesis model with supreme prompt adherence, realistic textures, and complex text composition.

Img Elo 1,372$211/1k imgs

FLUX.1 Series Lineage & Sibling Variants

3 models

Currently comparing FLUX.1 [dev] vs GPT Image 2 (High). Alternative family tiers available.

Active: FLUX.1 [dev]

FLUX.1.1 [pro]$50/1k FLUX.1 [schnell]$15/1k

Top Rival Showdowns for FLUX.1 [dev]

All Matchups

Compare vs:vs GPT Image 2 (Low / Fast)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 LeaderGPT Image 2 (High) Wins

GPT Image 2 (High)

Δ 192 Image Elo pts

Generation Speed LeaderFLUX.1 [dev] Wins

FLUX.1 [dev]

4s per render

Value per Dollar LeaderFLUX.1 [dev] Wins

FLUX.1 [dev]

$30/1k images

Head-to-Head Comparison

Overall Matchup Breakdown

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

FLUX.1 [dev] (2)vsGPT Image 2 (High) (3)

FLUX.1 [dev]: 2W (40%)Overall: GPT Image 2 (High)GPT Image 2 (High): 3W (60%)

← FLUX.1 [dev]GPT Image 2 (High) →

🏆GPT Image 2 (High)(3/3)

Visual Quality & Adherence

Arena Preference Elo, prompt fidelity & typography score

Benchmark

FLUX.1 [dev]vsGPT Image 2 (High)

Image Elo

1,180vs1,372+192

Prompt adherence

87.5%vs94.5%+7%

Text rendering

86%vs95%+9%

FLUX.1 [dev]: 0WGPT Image 2 (High): 3W

🏆FLUX.1 [dev](1/1)

Generation Latency

Time to render full-resolution image snapshot (seconds)

Benchmark

FLUX.1 [dev]vsGPT Image 2 (High)

Generation time

4svs4.8s+0.8s

FLUX.1 [dev]: 1WGPT Image 2 (High): 0W

🏆FLUX.1 [dev](1/1)

Cost Efficiency

API inference cost per 1,000 generated images

Benchmark

FLUX.1 [dev]vsGPT Image 2 (High)

Price per 1k images

$30/1kvs$211/1k+$181/1k

FLUX.1 [dev]: 1WGPT Image 2 (High): 0W

Side-by-Side Benchmark Matrix

Image Elo+192

FLUX.1 [dev]1,180

seed-bootstrap · Aug 1, 2026

GPT Image 2 (High)1,372

seed-bootstrap · Aug 1, 2026

Generation time+0.8s

FLUX.1 [dev]4s

seed-bootstrap · Aug 1, 2026

GPT Image 2 (High)4.8s

seed-bootstrap · Aug 1, 2026

Price per 1k images+$181/1k

FLUX.1 [dev]$30/1k

seed-bootstrap · Aug 1, 2026

GPT Image 2 (High)$211/1k

seed-bootstrap · Aug 1, 2026

Prompt adherence+7%

FLUX.1 [dev]87.5%

seed-bootstrap · Aug 1, 2026

GPT Image 2 (High)94.5%

seed-bootstrap · Aug 1, 2026

Text rendering+9%

FLUX.1 [dev]86%

seed-bootstrap · Aug 1, 2026

GPT Image 2 (High)95%

seed-bootstrap · Aug 1, 2026

Benchmark	FLUX.1 [dev]	GPT Image 2 (High)	Advantage Delta
Image Elo	1,180 seed-bootstrap · Aug 1, 2026	1,372 seed-bootstrap · Aug 1, 2026	+192
Generation time	4s seed-bootstrap · Aug 1, 2026	4.8s seed-bootstrap · Aug 1, 2026	+0.8s
Price per 1k images	$30/1k seed-bootstrap · Aug 1, 2026	$211/1k seed-bootstrap · Aug 1, 2026	+$181/1k
Prompt adherence	87.5% seed-bootstrap · Aug 1, 2026	94.5% seed-bootstrap · Aug 1, 2026	+7%
Text rendering	86% seed-bootstrap · Aug 1, 2026	95% seed-bootstrap · Aug 1, 2026	+9%

Interactive Simulator (USD)

Workload Cost & Savings Calculator

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

Save up to 86% with FLUX.1 [dev]

Monthly Image Production Volume25k images / month (25000 imgs)

Quick Presets:

FLUX.1 [dev]$750.00 / mo

Rate: $30/1k

GPT Image 2 (High)$5,275.00 / mo

Rate: $211/1k

Estimated Cost Delta

FLUX.1 [dev] is estimated to save $4,525.00/month ($54,300/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!

Social Share Card Preview

Dynamic OpenGraph banner generated at /compare/flux-1-dev-vs-gpt-image-2-high/opengraph-image

Save PNG

CompareLLM AI Matrix

Verified Head-to-Head Telemetry

LIVE BENCHMARK

Black Forest Labs

FLUX.1 [dev]

Elo n/a

SWE-bench—

Speed (tok/s)—

Input / 1M Tokens$30/1k

Output / 1M Tokens$30/1k

OpenAI

GPT Image 2 (High)

Elo n/a

SWE-bench—

Speed (tok/s)—

Input / 1M Tokens$211/1k

Output / 1M Tokens$211/1k

Frequently Asked Questions

Which is better overall, FLUX.1 [dev] or GPT Image 2 (High)?: 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 [dev] or GPT Image 2 (High)?: 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 [dev] or GPT Image 2 (High)?: 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 [dev] 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 [dev] and GPT Image 2 (High) Elo cells are dated snapshots from the named source — we do not compute Arena ourselves.

Similar Head-to-Head Comparisons

All FLUX.1 [dev] matchups →|All GPT Image 2 (High) matchups →

FLUX.1 [dev] vs FLUX.1 [schnell] (next flux)GPT Image 2 (High) vs GPT Image 1.5 (previous gpt-image)GPT Image 2 (High) vs GPT Image 2 (Low / Fast) (next gpt-image)FLUX.2 [max] vs GPT Image 2 (High)FLUX.2 [flex] vs GPT Image 2 (High)DALL-E 3 vs GPT Image 2 (High)

Benchmark

FLUX.1 [dev]

GPT Image 2 (High)

Advantage Delta

Image Elo

1,180

seed-bootstrap · Aug 1, 2026

1,372

seed-bootstrap · Aug 1, 2026

+192

Generation time

seed-bootstrap · Aug 1, 2026

4.8s

seed-bootstrap · Aug 1, 2026

+0.8s

Price per 1k images

$30/1k

seed-bootstrap · Aug 1, 2026

$211/1k

seed-bootstrap · Aug 1, 2026

+$181/1k

Prompt adherence

87.5%

seed-bootstrap · Aug 1, 2026

94.5%

seed-bootstrap · Aug 1, 2026

+7%

Text rendering

86%

seed-bootstrap · Aug 1, 2026

95%

seed-bootstrap · Aug 1, 2026

+9%

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 [dev] or GPT Image 2 (High)?

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 [dev] or GPT Image 2 (High)?

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 [dev] or GPT Image 2 (High)?

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 [dev] 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 [dev] and GPT Image 2 (High) Elo cells are dated snapshots from the named source — we do not compute Arena ourselves.