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

GPT Image 1.5 vs OpenAI: o3 Mini benchmark

Name: GPT Image 1.5 vs OpenAI: o3 Mini AI benchmark comparison
Creator: CompareLLM
License: https://creativecommons.org/licenses/by/4.0/

Comparing verified benchmark accuracy, speed, and token pricing between GPT Image 1.5 and OpenAI: o3 Mini. Review the complete breakdown below to determine which model best fits your performance and budget requirements.

Share Analysis:Share:

WhatsApp Telegram X LinkedIn

Executive Verdict Summary

GPT Image 1.5 holds empirical advantage (0 of 0 metrics)

Coding / SWESWE-bench

OpenAI: o3 MiniTop code solve rate

ReasoningGPQA / Live

OpenAI: o3 MiniTop logical accuracy

Best Value$/1M Tok

OpenAI: o3 MiniLowest API billing cost

Speed / TokTok/Sec

OpenAI: o3 MiniFastest stream rate

OpenAI

GPT Image 1.5

Previous OpenAI image generation flagship. High fidelity with proven enterprise reliability.

Img Elo 1,313$133/1k imgs

OpenAI

OpenAI: o3 Mini

Auto-discovered from OpenRouter (openai/o3-mini). Preview until a second source matches.

o3-miniImg Elo 1,560

OpenAI: o3 Mini Thinking Depth & Cost Scaler

Model B

Simulate accuracy gains vs added response time & token cost

Mode: Medium (Standard)

Reasoning models “think before answering” by generating internal reasoning tokens. Higher effort improves math, coding, and logic accuracy, but increases response delay and token costs.

Delay

290 ms

Standard

CoT Tokens

~1,500

Internal reasoning

Cost / 1k

$8.47

4.5× base bill

Accuracy Boost

+4.5%

STEM & Logic

Top Rival Showdowns for GPT Image 1.5

All Matchups

Compare vs:vs Reve 2.1 vs Nano Banana Pro (Gemini 3 Pro Image)vs FLUX.2 [max]vs Ideogram 4.0 (Quality)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

Overall Matchup Breakdown

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

GPT Image 1.5 (5)vsOpenAI: o3 Mini (0)

GPT Image 1.5: 5W (100%)OpenAI: o3 Mini: 0W (0%)

← GPT Image 1.5OpenAI: o3 Mini →

🏆GPT Image 1.5 Leads(3/3)

Visual Quality & Adherence

Arena Preference Elo, prompt fidelity & typography score

Benchmark

GPT Image 1.5vsOpenAI: o3 Mini

Image Elo

1,313vs—

Prompt adherence

91%vs—

Text rendering

90.5%vs—

GPT Image 1.5: 3WOpenAI: o3 Mini: 0W

🏆GPT Image 1.5 Leads(1/1)

Generation Latency

Time to render full-resolution image snapshot (seconds)

Benchmark

GPT Image 1.5vsOpenAI: o3 Mini

Generation time

3.5svs—

GPT Image 1.5: 1WOpenAI: o3 Mini: 0W

🏆GPT Image 1.5 Leads(1/1)

Cost Efficiency

API inference cost per 1,000 generated images

Benchmark

GPT Image 1.5vsOpenAI: o3 Mini

Price per 1k images

$133/1kvs—

GPT Image 1.5: 1WOpenAI: o3 Mini: 0W

Side-by-Side Benchmark Matrix

GPT Image 1.5OpenAI: o3 Mini

Image Elo

GPT Image 1.51,313

OpenAI: o3 Mini—

Generation time

GPT Image 1.53.5s

OpenAI: o3 Mini—

Price per 1k images

GPT Image 1.5$133/1k

OpenAI: o3 Mini—

Prompt adherence

GPT Image 1.591%

OpenAI: o3 Mini—

Text rendering

GPT Image 1.590.5%

OpenAI: o3 Mini—

Benchmark	GPT Image 1.5	OpenAI: o3 Mini	Advantage Delta
Image Elo	1,313 seed-bootstrap · Aug 1, 2026	—	—
Generation time	3.5s seed-bootstrap · Aug 1, 2026	—	—
Price per 1k images	$133/1k seed-bootstrap · Aug 1, 2026	—	—
Prompt adherence	91% seed-bootstrap · Aug 1, 2026	—	—
Text rendering	90.5% seed-bootstrap · Aug 1, 2026	—	—

Workload Cost & Savings Calculator

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

Save 100% with OpenAI: o3 Mini

Monthly Image Production Volume25k images / month (25000 imgs)

Quick Presets:

GPT Image 1.5$3,325.00 / mo

Rate: $133/1k

OpenAI: o3 Mini$0.00 / mo

Rate: $0/1k

Estimated Cost Delta

OpenAI: o3 Mini is estimated to save $3,325.00/month ($39,900/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 / visionGPT Image 1.5

GPT Image 1.5 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	GPT Image 1.5	GPT Image 1.5 is the side marked multimodal in the catalog.

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/gpt-image-1-5-vs-o3-mini/opengraph-image

Save PNG

CompareLLM AI Matrix

Verified Head-to-Head Telemetry

LIVE BENCHMARK

OpenAI

GPT Image 1.5

Elo n/a

SWE-bench—

Speed (tok/s)—

Input / 1M Tokens$133/1k

Output / 1M Tokens$133/1k

OpenAI

OpenAI: o3 Mini

Elo 1,560

SWE-bench78.5%

Speed (tok/s)92 tok/s

Input / 1M Tokens$1.1/1M

Output / 1M Tokens$4.4/1M

Frequently Asked Questions

Which is better overall, GPT Image 1.5 or OpenAI: o3 Mini?: 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, GPT Image 1.5 or OpenAI: o3 Mini?: 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, GPT Image 1.5 or OpenAI: o3 Mini?: 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. GPT Image 1.5 and OpenAI: o3 Mini Elo cells are dated snapshots from the named source — we do not compute Arena ourselves.

Similar Head-to-Head Comparisons

All GPT Image 1.5 matchups →|All OpenAI: o3 Mini matchups →

GPT Image 1.5 vs DALL-E 3 (previous gpt-image)GPT Image 1.5 vs GPT Image 2 (High) (next gpt-image)OpenAI: o3 Mini vs OpenAI o1-mini (previous gpt-mini)OpenAI: o3 Mini vs GPT-5 mini (next gpt-mini)GPT-5 vs OpenAI: o3 Mini GPT-4.5 Orion vs OpenAI: o3 Mini

Side-by-Side Benchmark Matrix

GPT Image 1.5OpenAI: o3 Mini

Image Elo

GPT Image 1.51,313

OpenAI: o3 Mini—

Generation time

GPT Image 1.53.5s

OpenAI: o3 Mini—

Price per 1k images

GPT Image 1.5$133/1k

OpenAI: o3 Mini—

Prompt adherence

GPT Image 1.591%

OpenAI: o3 Mini—

Text rendering

GPT Image 1.590.5%

OpenAI: o3 Mini—

Benchmark

GPT Image 1.5

OpenAI: o3 Mini

Advantage Delta

Image Elo

1,313

seed-bootstrap · Aug 1, 2026

—

Generation time

3.5s

seed-bootstrap · Aug 1, 2026

—

Price per 1k images

$133/1k

seed-bootstrap · Aug 1, 2026

—

Prompt adherence

91%

seed-bootstrap · Aug 1, 2026

—

Text rendering

90.5%

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 / visionGPT Image 1.5

GPT Image 1.5 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	GPT Image 1.5	GPT Image 1.5 is the side marked multimodal in the catalog.

Frequently Asked Questions

Which is better overall, GPT Image 1.5 or OpenAI: o3 Mini?

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, GPT Image 1.5 or OpenAI: o3 Mini?

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, GPT Image 1.5 or OpenAI: o3 Mini?

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. GPT Image 1.5 and OpenAI: o3 Mini Elo cells are dated snapshots from the named source — we do not compute Arena ourselves.