Pairwise benchmark snapshot · Aug 17, 2026noindex (thin pair)

Ideogram 4.0 Open Weights vs StepFun: Step 3.5 Flash benchmark

Name: Ideogram 4.0 Open Weights vs StepFun: Step 3.5 Flash AI benchmark comparison
Creator: CompareLLM
License: https://creativecommons.org/licenses/by/4.0/

Comparing verified benchmark accuracy, speed, and token pricing between Ideogram 4.0 Open Weights and StepFun: Step 3.5 Flash. Review the complete breakdown below to determine which model best fits your performance and budget requirements.

Share Analysis:

Ideogram

Ideogram 4.0 Open Weights

Open-weight release of Ideogram 4.0, bringing world-class text rendering to self-hosted enterprise infrastructure.

Open WeightsImg Elo 1,218$60/1k imgs

stepfun

StepFun: Step 3.5 Flash

Auto-discovered from OpenRouter (stepfun/step-3.5-flash). Preview until a second source matches.

Ideogram 4.0 Lineage & Sibling Variants

2 models

Currently comparing Ideogram 4.0 Open Weights vs StepFun: Step 3.5 Flash. Alternative family tiers available.

Active: Ideogram 4.0 Open Weights

Ideogram 4.0 (Quality)$100/1k

Top Rival Showdowns for Ideogram 4.0 Open Weights

All Matchups

Compare vs:vs GPT Image 2 (High)vs Reve 2.1 vs Nano Banana Pro (Gemini 3 Pro Image)vs FLUX.2 [max]vs Recraft V4.1 Utility Pro

Image Quality Leader

No shared data

Single model data

Generation Speed Leader

No shared data

No latency data

Value per Dollar Leader

No shared data

Unpriced

Head-to-Head Comparison

Overall Matchup Breakdown

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

Ideogram 4.0 Open Weights (5)vsStepFun: Step 3.5 Flash (0)

Ideogram 4.0 Open Weights: 5W (100%)Overall: Ideogram 4.0 Open WeightsStepFun: Step 3.5 Flash: 0W (0%)

← Ideogram 4.0 Open WeightsStepFun: Step 3.5 Flash →

🏆Ideogram 4.0 Open Weights(3/3)

Visual Quality & Adherence

Arena Preference Elo, prompt fidelity & typography score

Benchmark

Ideogram 4.0 Open WeightsvsStepFun: Step 3.5 Flash

Image Elo

1,218vs—

Prompt adherence

91%vs—

Text rendering

95.8%vs—

Ideogram 4.0 Open Weights: 3WStepFun: Step 3.5 Flash: 0W

🏆Ideogram 4.0 Open Weights(1/1)

Generation Latency

Time to render full-resolution image snapshot (seconds)

Benchmark

Ideogram 4.0 Open WeightsvsStepFun: Step 3.5 Flash

Generation time

3.8svs—

Ideogram 4.0 Open Weights: 1WStepFun: Step 3.5 Flash: 0W

🏆Ideogram 4.0 Open Weights(1/1)

Cost Efficiency

API inference cost per 1,000 generated images

Benchmark

Ideogram 4.0 Open WeightsvsStepFun: Step 3.5 Flash

Price per 1k images

$60/1kvs—

Ideogram 4.0 Open Weights: 1WStepFun: Step 3.5 Flash: 0W

Side-by-Side Benchmark Matrix

Image Elo

Ideogram 4.0 Open Weights1,218

seed-bootstrap · Aug 1, 2026

StepFun: Step 3.5 Flash—

Generation time

Ideogram 4.0 Open Weights3.8s

seed-bootstrap · Aug 1, 2026

StepFun: Step 3.5 Flash—

Price per 1k images

Ideogram 4.0 Open Weights$60/1k

seed-bootstrap · Aug 1, 2026

StepFun: Step 3.5 Flash—

Prompt adherence

Ideogram 4.0 Open Weights91%

seed-bootstrap · Aug 1, 2026

StepFun: Step 3.5 Flash—

Text rendering

Ideogram 4.0 Open Weights95.8%

seed-bootstrap · Aug 1, 2026

StepFun: Step 3.5 Flash—

Benchmark	Ideogram 4.0 Open Weights	StepFun: Step 3.5 Flash	Advantage Delta
Image Elo	1,218 seed-bootstrap · Aug 1, 2026	—	—
Generation time	3.8s seed-bootstrap · Aug 1, 2026	—	—
Price per 1k images	$60/1k seed-bootstrap · Aug 1, 2026	—	—
Prompt adherence	91% seed-bootstrap · Aug 1, 2026	—	—
Text rendering	95.8% seed-bootstrap · Aug 1, 2026	—	—

Interactive Simulator (USD)

Workload Cost & Savings Calculator

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

Save up to 100% with StepFun: Step 3.5 Flash

Monthly Image Production Volume25k images / month (25000 imgs)

Quick Presets:

Ideogram 4.0 Open Weights$1,500.00 / mo

Rate: $60/1k

StepFun: Step 3.5 Flash$0.00 / mo

Rate: $0/1k

Estimated Cost Delta

StepFun: Step 3.5 Flash is estimated to save $1,500.00/month ($18,000/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 / visionIdeogram 4.0 Open Weights

Ideogram 4.0 Open Weights is the side marked multimodal in the catalog.

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	Ideogram 4.0 Open Weights	Ideogram 4.0 Open Weights is the side marked multimodal in the catalog.

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

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CompareLLM AI Matrix

Verified Head-to-Head Telemetry

LIVE BENCHMARK

Ideogram

Ideogram 4.0 Open Weights

Elo n/a

SWE-bench—

Speed (tok/s)—

Input / 1M Tokens$60/1k

Output / 1M Tokens$60/1k

stepfun

StepFun: Step 3.5 Flash

Elo n/a

SWE-bench—

Speed (tok/s)262k

Input / 1M Tokens$0.1/1M

Output / 1M Tokens$0.3/1M

Frequently Asked Questions

Which is better overall, Ideogram 4.0 Open Weights or StepFun: Step 3.5 Flash?: 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, Ideogram 4.0 Open Weights or StepFun: Step 3.5 Flash?: 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, Ideogram 4.0 Open Weights or StepFun: Step 3.5 Flash?: 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?: Ideogram 4.0 Open Weights 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. Ideogram 4.0 Open Weights and StepFun: Step 3.5 Flash Elo cells are dated snapshots from the named source — we do not compute Arena ourselves.

Similar Head-to-Head Comparisons

All Ideogram 4.0 Open Weights matchups →|All StepFun: Step 3.5 Flash matchups →

Ideogram 4.0 Open Weights vs Ideogram 4.0 (Quality) (previous ideogram)

Side-by-Side Benchmark Matrix

Image Elo

Ideogram 4.0 Open Weights1,218

seed-bootstrap · Aug 1, 2026

StepFun: Step 3.5 Flash—

Generation time

Ideogram 4.0 Open Weights3.8s

seed-bootstrap · Aug 1, 2026

StepFun: Step 3.5 Flash—

Price per 1k images

Ideogram 4.0 Open Weights$60/1k

seed-bootstrap · Aug 1, 2026

StepFun: Step 3.5 Flash—

Prompt adherence

Ideogram 4.0 Open Weights91%

seed-bootstrap · Aug 1, 2026

StepFun: Step 3.5 Flash—

Text rendering

Ideogram 4.0 Open Weights95.8%

seed-bootstrap · Aug 1, 2026

StepFun: Step 3.5 Flash—

Benchmark	Ideogram 4.0 Open Weights	StepFun: Step 3.5 Flash	Advantage Delta
Image Elo	1,218 seed-bootstrap · Aug 1, 2026	—	—
Generation time	3.8s seed-bootstrap · Aug 1, 2026	—	—
Price per 1k images	$60/1k seed-bootstrap · Aug 1, 2026	—	—
Prompt adherence	91% seed-bootstrap · Aug 1, 2026	—	—
Text rendering	95.8% seed-bootstrap · Aug 1, 2026	—	—

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 / visionIdeogram 4.0 Open Weights

Ideogram 4.0 Open Weights is the side marked multimodal in the catalog.

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	Ideogram 4.0 Open Weights	Ideogram 4.0 Open Weights is the side marked multimodal in the catalog.

Frequently Asked Questions

Which is better overall, Ideogram 4.0 Open Weights or StepFun: Step 3.5 Flash?

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, Ideogram 4.0 Open Weights or StepFun: Step 3.5 Flash?

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, Ideogram 4.0 Open Weights or StepFun: Step 3.5 Flash?

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?

Ideogram 4.0 Open Weights 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. Ideogram 4.0 Open Weights and StepFun: Step 3.5 Flash Elo cells are dated snapshots from the named source — we do not compute Arena ourselves.