Pairwise benchmark snapshot · Aug 1, 2026

Luma UNI 1 Max vs Seedream 4.0 benchmark

Name: Luma UNI 1 Max vs Seedream 4.0 AI benchmark comparison
Creator: CompareLLM
License: https://creativecommons.org/licenses/by/4.0/

This page compares Luma UNI 1 Max (Luma Labs) and Seedream 4.0 (ByteDance) using the latest snapshots we have as of Aug 1, 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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Luma Labs

Luma UNI 1 Max

Luma Labs universal 3D-aware image synthesis engine with spatial geometry consistency.

Img Elo 1,226$100/1k imgs

ByteDance

Seedream 4.0

High-value ByteDance image foundation model at $30/1k images.

v4.0Img Elo 1,225$30/1k imgs

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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.

Luma UNI 1 Max (3)vsSeedream 4.0 (2)

Luma UNI 1 Max: 3W (60%)Overall: Luma UNI 1 MaxSeedream 4.0: 2W (40%)

← Luma UNI 1 MaxSeedream 4.0 →

Luma UNI 1 Max (3/3)

Visual Quality & Adherence

Arena Preference Elo, prompt fidelity & typography score

Image Elo

1,226vs1,225

Prompt adherence

90.2%vs89%

Text rendering

90%vs88%

Luma UNI 1 Max: 3WSeedream 4.0: 0W

Seedream 4.0 (1/1)

Generation Latency

Time to render full-resolution image snapshot (seconds)

Generation time

4.4svs2.8s

Luma UNI 1 Max: 0WSeedream 4.0: 1W

Seedream 4.0 (1/1)

Cost Efficiency

API inference cost per 1,000 generated images

Price per 1k images

$100/1kvs$30/1k

Luma UNI 1 Max: 0WSeedream 4.0: 1W

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 AdvantageLuma UNI 1 Max 3/6

Image Preference Elo

Luma UNI 1 Max

1 pts advantage

Generation Latency

Seedream 4.0

1.6s faster

Image Price Efficiency

Seedream 4.0

$70.0/1k cheaper

Full Benchmark Score Matrix

—

Img Elo

High is better

1,226

Img EloHigh is better

1,225

Gen Time

Low is better

4.4s

Gen TimeLow is better

2.8s+57%

Img $

Low is better

$100/1k

Img $Low is better

$30/1k+233%

Prompt %

High is better

+1%90.2%

Prompt %High is better

89%

Text %

High is better

+2%90%

Text %High is better

88%

Interactive Simulator (USD)

Workload Cost & Savings Calculator

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

Save up to 70% with Seedream 4.0

Monthly Image Production Volume25k images / month (25000 imgs)

Quick Presets:

Luma UNI 1 Max$2,500.00 / mo

Rate: $100/1k

Seedream 4.0$750.00 / mo

Rate: $30/1k

Estimated Cost Delta

Seedream 4.0 is estimated to save $1,750.00/month ($21,000/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

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CompareLLM Matrix

Verified head-to-head card

LIVE

Luma Labs

Luma UNI 1 Max

Elo n/a

LiveBench—

SWE-bench—

Speed—

Output cost—

ByteDance

Seedream 4.0

Elo n/a

LiveBench—

SWE-bench—

Speed—

Output cost—

Frequently Asked Questions

Which is better overall, Luma UNI 1 Max or Seedream 4.0?: 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, Luma UNI 1 Max or Seedream 4.0?: 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, Luma UNI 1 Max or Seedream 4.0?: 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. Luma UNI 1 Max and Seedream 4.0 Elo cells are dated snapshots from the named source — we do not compute Arena ourselves.

Similar Head-to-Head Comparisons

All Luma UNI 1 Max matchups →|All Seedream 4.0 matchups →

Luma UNI 1 Max vs HiDream-O1-Image-1.5 (next other)Seedream 4.0 vs Seedream 5.0 Pro (next seed)GPT Image 2 (High) vs Seedream 4.0 Reve 2.1 vs Seedream 4.0 Nano Banana Pro (Gemini 3 Pro Image) vs Seedream 4.0 Nano Banana 2 (Gemini 3.1 Flash Image) vs Seedream 4.0

Interactive Comparison Diagram

Matchup Breakdown

Tug-of-War Matchup Matrix

Category wins across intelligence, speed, and pricing efficiency.

Luma UNI 1 Max (3)vsSeedream 4.0 (2)

Luma UNI 1 Max: 3W (60%)Overall: Luma UNI 1 MaxSeedream 4.0: 2W (40%)

← Luma UNI 1 MaxSeedream 4.0 →

Luma UNI 1 Max (3/3)

Visual Quality & Adherence

Arena Preference Elo, prompt fidelity & typography score

Image Elo

1,226vs1,225

Prompt adherence

90.2%vs89%

Text rendering

90%vs88%

Luma UNI 1 Max: 3WSeedream 4.0: 0W

Seedream 4.0 (1/1)

Generation Latency

Time to render full-resolution image snapshot (seconds)

Generation time

4.4svs2.8s

Luma UNI 1 Max: 0WSeedream 4.0: 1W

Seedream 4.0 (1/1)

Cost Efficiency

API inference cost per 1,000 generated images

Price per 1k images

$100/1kvs$30/1k

Luma UNI 1 Max: 0WSeedream 4.0: 1W

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, Luma UNI 1 Max or Seedream 4.0?

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, Luma UNI 1 Max or Seedream 4.0?

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, Luma UNI 1 Max or Seedream 4.0?

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. Luma UNI 1 Max and Seedream 4.0 Elo cells are dated snapshots from the named source — we do not compute Arena ourselves.