Pairwise benchmark snapshot · Aug 1, 2026

FLUX.1.1 [pro] vs Seedream 5.0 Pro benchmark

Name: FLUX.1.1 [pro] vs Seedream 5.0 Pro AI benchmark comparison
Creator: CompareLLM
License: https://creativecommons.org/licenses/by/4.0/

Comparing verified benchmark accuracy, speed, and token pricing between FLUX.1.1 [pro] and Seedream 5.0 Pro. 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.1.1 [pro] (2)Seedream 5.0 Pro (3)

FLUX.1.1 [pro]

2 of 5 Wins

✓Generation time✓Price per 1k images

Seedream 5.0 Pro

3 of 5 Wins

✓Image Elo✓Prompt adherence✓Text rendering

Black Forest Labs

Leads 2 of 5 metrics

FLUX.1.1 [pro]

First-generation professional API model from Black Forest Labs, renowned for 6x faster generation than original FLUX.1 Pro.

Img Elo 1,210$50/1k imgs

ByteDance

Leads 3 of 5 metrics

Seedream 5.0 Pro

ByteDance flagship image generation model with high photorealism and fine facial structure rendering.

Img Elo 1,283$90/1k imgs

Top Rival Showdowns for FLUX.1.1 [pro]

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 LeaderSeedream 5.0 Pro Wins

Seedream 5.0 Pro

Δ 73 Image Elo pts

Generation Speed LeaderFLUX.1.1 [pro] Wins

FLUX.1.1 [pro]

3.2s per render

Value per Dollar LeaderFLUX.1.1 [pro] Wins

FLUX.1.1 [pro]

$50/1k images

Head-to-Head Comparison

Overall Matchup Breakdown

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

FLUX.1.1 [pro] (2)vsSeedream 5.0 Pro (3)

FLUX.1.1 [pro]: 2W (40%)Overall: Seedream 5.0 ProSeedream 5.0 Pro: 3W (60%)

← FLUX.1.1 [pro]Seedream 5.0 Pro →

🏆Seedream 5.0 Pro(3/3)

Visual Quality & Adherence

Arena Preference Elo, prompt fidelity & typography score

Benchmark

FLUX.1.1 [pro]vsSeedream 5.0 Pro

Image Elo

1,210vs1,283+73

Prompt adherence

89%vs92%+3%

Text rendering

89.5%vs91.5%+2%

FLUX.1.1 [pro]: 0WSeedream 5.0 Pro: 3W

🏆FLUX.1.1 [pro](1/1)

Generation Latency

Time to render full-resolution image snapshot (seconds)

Benchmark

FLUX.1.1 [pro]vsSeedream 5.0 Pro

Generation time

3.2svs3.4s+0.2s

FLUX.1.1 [pro]: 1WSeedream 5.0 Pro: 0W

🏆FLUX.1.1 [pro](1/1)

Cost Efficiency

API inference cost per 1,000 generated images

Benchmark

FLUX.1.1 [pro]vsSeedream 5.0 Pro

Price per 1k images

$50/1kvs$90/1k+$40/1k

FLUX.1.1 [pro]: 1WSeedream 5.0 Pro: 0W

Side-by-Side Benchmark Matrix

Image Elo+73

FLUX.1.1 [pro]1,210

seed-bootstrap · Aug 1, 2026

Seedream 5.0 Pro1,283

seed-bootstrap · Aug 1, 2026

Generation time+0.2s

FLUX.1.1 [pro]3.2s

seed-bootstrap · Aug 1, 2026

Seedream 5.0 Pro3.4s

seed-bootstrap · Aug 1, 2026

Price per 1k images+$40/1k

FLUX.1.1 [pro]$50/1k

seed-bootstrap · Aug 1, 2026

Seedream 5.0 Pro$90/1k

seed-bootstrap · Aug 1, 2026

Prompt adherence+3%

FLUX.1.1 [pro]89%

seed-bootstrap · Aug 1, 2026

Seedream 5.0 Pro92%

seed-bootstrap · Aug 1, 2026

Text rendering+2%

FLUX.1.1 [pro]89.5%

seed-bootstrap · Aug 1, 2026

Seedream 5.0 Pro91.5%

seed-bootstrap · Aug 1, 2026

Benchmark	FLUX.1.1 [pro]	Seedream 5.0 Pro	Advantage Delta
Image Elo	1,210 seed-bootstrap · Aug 1, 2026	1,283 seed-bootstrap · Aug 1, 2026	+73
Generation time	3.2s seed-bootstrap · Aug 1, 2026	3.4s seed-bootstrap · Aug 1, 2026	+0.2s
Price per 1k images	$50/1k seed-bootstrap · Aug 1, 2026	$90/1k seed-bootstrap · Aug 1, 2026	+$40/1k
Prompt adherence	89% seed-bootstrap · Aug 1, 2026	92% seed-bootstrap · Aug 1, 2026	+3%
Text rendering	89.5% seed-bootstrap · Aug 1, 2026	91.5% 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 44% with FLUX.1.1 [pro]

Monthly Image Production Volume25k images / month (25000 imgs)

Quick Presets:

FLUX.1.1 [pro]$1,250.00 / mo

Rate: $50/1k

Seedream 5.0 Pro$2,250.00 / mo

Rate: $90/1k

Estimated Cost Delta

FLUX.1.1 [pro] is estimated to save $1,000.00/month ($12,000/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.1.1 [pro]

Elo n/a

SWE-bench—

Speed (tok/s)—

Input / 1M Tokens$50/1k

Output / 1M Tokens$50/1k

ByteDance

Seedream 5.0 Pro

Elo n/a

SWE-bench—

Speed (tok/s)—

Input / 1M Tokens$90/1k

Output / 1M Tokens$90/1k

Frequently Asked Questions

Which is better overall, FLUX.1.1 [pro] or Seedream 5.0 Pro?: 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.1.1 [pro] or Seedream 5.0 Pro?: 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.1.1 [pro] or Seedream 5.0 Pro?: 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. FLUX.1.1 [pro] and Seedream 5.0 Pro Elo cells are dated snapshots from the named source — we do not compute Arena ourselves.

Similar Head-to-Head Comparisons

All FLUX.1.1 [pro] matchups →|All Seedream 5.0 Pro matchups →

FLUX.1.1 [pro] vs FLUX.1 [schnell] (previous flux)FLUX.1.1 [pro] vs FLUX.2 [flex] (next flux)Seedream 5.0 Pro vs Seedream 4.0 (previous seed)FLUX.2 [max] vs Seedream 5.0 Pro FLUX.2 [flex] vs Seedream 5.0 Pro GPT Image 2 (High) vs Seedream 5.0 Pro

Benchmark

FLUX.1.1 [pro]

Seedream 5.0 Pro

Advantage Delta

Image Elo

1,210

seed-bootstrap · Aug 1, 2026

1,283

seed-bootstrap · Aug 1, 2026

+73

Generation time

3.2s

seed-bootstrap · Aug 1, 2026

3.4s

seed-bootstrap · Aug 1, 2026

+0.2s

Price per 1k images

$50/1k

seed-bootstrap · Aug 1, 2026

$90/1k

seed-bootstrap · Aug 1, 2026

+$40/1k

Prompt adherence

89%

seed-bootstrap · Aug 1, 2026

92%

seed-bootstrap · Aug 1, 2026

+3%

Text rendering

89.5%

seed-bootstrap · Aug 1, 2026

91.5%

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.1.1 [pro] or Seedream 5.0 Pro?

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.1.1 [pro] or Seedream 5.0 Pro?

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.1.1 [pro] or Seedream 5.0 Pro?

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. FLUX.1.1 [pro] and Seedream 5.0 Pro Elo cells are dated snapshots from the named source — we do not compute Arena ourselves.