Pairwise benchmark snapshot · Aug 1, 2026

FLUX.1 [dev] vs GPT Image 2 (Low / Fast) benchmark

Name: FLUX.1 [dev] vs GPT Image 2 (Low / Fast) 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 (Low / Fast). 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] (1)GPT Image 2 (Low / Fast) (4)

FLUX.1 [dev]

1 of 5 Wins

✓Price per 1k images

GPT Image 2 (Low / Fast)

4 of 5 Wins

✓Image Elo✓Generation time✓Prompt adherence✓Text rendering

Black Forest Labs

Leads 1 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 4 of 5 metrics

GPT Image 2 (Low / Fast)

Fast distilled tier of GPT Image 2 designed for high-throughput interactive creative workflows at 70% lower price.

Fast / Low CostImg Elo 1,315$65/1k imgs

FLUX.1 Series Lineage & Sibling Variants

3 models

Currently comparing FLUX.1 [dev] vs GPT Image 2 (Low / Fast). 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 (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 LeaderGPT Image 2 (Low / Fast) Wins

GPT Image 2 (Low / Fast)

Δ 135 Image Elo pts

Generation Speed LeaderGPT Image 2 (Low / Fast) Wins

GPT Image 2 (Low / Fast)

1.9s 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] (1)vsGPT Image 2 (Low / Fast) (4)

FLUX.1 [dev]: 1W (20%)Overall: GPT Image 2 (Low / Fast)GPT Image 2 (Low / Fast): 4W (80%)

← FLUX.1 [dev]GPT Image 2 (Low / Fast) →

🏆GPT Image 2 (Low / Fast)(3/3)

Visual Quality & Adherence

Arena Preference Elo, prompt fidelity & typography score

Benchmark

FLUX.1 [dev]vsGPT Image 2 (Low / Fast)

Image Elo

1,180vs1,315+135

Prompt adherence

87.5%vs89.2%+1.7%

Text rendering

86%vs88%+2%

FLUX.1 [dev]: 0WGPT Image 2 (Low / Fast): 3W

🏆GPT Image 2 (Low / Fast)(1/1)

Generation Latency

Time to render full-resolution image snapshot (seconds)

Benchmark

FLUX.1 [dev]vsGPT Image 2 (Low / Fast)

Generation time

4svs1.9s+2.1s

FLUX.1 [dev]: 0WGPT Image 2 (Low / Fast): 1W

🏆FLUX.1 [dev](1/1)

Cost Efficiency

API inference cost per 1,000 generated images

Benchmark

FLUX.1 [dev]vsGPT Image 2 (Low / Fast)

Price per 1k images

$30/1kvs$65/1k+$35/1k

FLUX.1 [dev]: 1WGPT Image 2 (Low / Fast): 0W

Side-by-Side Benchmark Matrix

Image Elo+135

FLUX.1 [dev]1,180

seed-bootstrap · Aug 1, 2026

GPT Image 2 (Low / Fast)1,315

seed-bootstrap · Aug 1, 2026

Generation time+2.1s

FLUX.1 [dev]4s

seed-bootstrap · Aug 1, 2026

GPT Image 2 (Low / Fast)1.9s

seed-bootstrap · Aug 1, 2026

Price per 1k images+$35/1k

FLUX.1 [dev]$30/1k

seed-bootstrap · Aug 1, 2026

GPT Image 2 (Low / Fast)$65/1k

seed-bootstrap · Aug 1, 2026

Prompt adherence+1.7%

FLUX.1 [dev]87.5%

seed-bootstrap · Aug 1, 2026

GPT Image 2 (Low / Fast)89.2%

seed-bootstrap · Aug 1, 2026

Text rendering+2%

FLUX.1 [dev]86%

seed-bootstrap · Aug 1, 2026

GPT Image 2 (Low / Fast)88%

seed-bootstrap · Aug 1, 2026

Benchmark	FLUX.1 [dev]	GPT Image 2 (Low / Fast)	Advantage Delta
Image Elo	1,180 seed-bootstrap · Aug 1, 2026	1,315 seed-bootstrap · Aug 1, 2026	+135
Generation time	4s seed-bootstrap · Aug 1, 2026	1.9s seed-bootstrap · Aug 1, 2026	+2.1s
Price per 1k images	$30/1k seed-bootstrap · Aug 1, 2026	$65/1k seed-bootstrap · Aug 1, 2026	+$35/1k
Prompt adherence	87.5% seed-bootstrap · Aug 1, 2026	89.2% seed-bootstrap · Aug 1, 2026	+1.7%
Text rendering	86% seed-bootstrap · Aug 1, 2026	88% seed-bootstrap · Aug 1, 2026	+2%

Interactive Simulator (USD)

Workload Cost & Savings Calculator

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

Save up to 54% 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 (Low / Fast)$1,625.00 / mo

Rate: $65/1k

Estimated Cost Delta

FLUX.1 [dev] is estimated to save $875.00/month ($10,500/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

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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 (Low / Fast)

Elo n/a

SWE-bench—

Speed (tok/s)—

Input / 1M Tokens$65/1k

Output / 1M Tokens$65/1k

Frequently Asked Questions

Which is better overall, FLUX.1 [dev] or GPT Image 2 (Low / Fast)?: 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 (Low / Fast)?: 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 (Low / Fast)?: 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 (Low / Fast) 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 (Low / Fast) matchups →

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

Benchmark

FLUX.1 [dev]

GPT Image 2 (Low / Fast)

Advantage Delta

Image Elo

1,180

seed-bootstrap · Aug 1, 2026

1,315

seed-bootstrap · Aug 1, 2026

+135

Generation time

seed-bootstrap · Aug 1, 2026

1.9s

seed-bootstrap · Aug 1, 2026

+2.1s

Price per 1k images

$30/1k

seed-bootstrap · Aug 1, 2026

$65/1k

seed-bootstrap · Aug 1, 2026

+$35/1k

Prompt adherence

87.5%

seed-bootstrap · Aug 1, 2026

89.2%

seed-bootstrap · Aug 1, 2026

+1.7%

Text rendering

86%

seed-bootstrap · Aug 1, 2026

88%

seed-bootstrap · Aug 1, 2026

+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 [dev] or GPT Image 2 (Low / Fast)?

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 (Low / Fast)?

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 (Low / Fast)?

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 (Low / Fast) Elo cells are dated snapshots from the named source — we do not compute Arena ourselves.