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© 2026 CompareLLM. Public benchmark data aggregated from Arena Elo, LiveBench, SWE-bench & OpenRouter.

Every score has a dated snapshot.

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  3. OpenAI: o3 Mini vs OpenAI: o4 Mini High
Independent ReportPairwise benchmark snapshot · Aug 17, 2026
noindex (thin pair)
OpenAI: o3 Mini(OpenAI)
vs
OpenAI: o4 Mini High(OpenAI)

OpenAI: o3 Mini vs OpenAI: o4 Mini High benchmark

In this head-to-head showdown, OpenAI: o3 Mini is more budget-friendly at $4.4/1M per 1M output tokens. Review the complete breakdown below to determine which model best fits your performance and budget requirements.

Executive Comparison Verdict

Bottom Line: Both OpenAI: o3 Mini and OpenAI: o4 Mini High present distinct architectural strengths. Compare the verified benchmark matrix below to choose the model tailored to your specific application requirements.
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Executive Verdict Summary

OpenAI: o3 Mini 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
OpenAI: o3 Mini

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

o3-miniElo 1,560In: $1.1 · Out: $4.4/1M
OpenAI
OpenAI: o4 Mini High

Auto-discovered from OpenRouter (openai/o4-mini-high). Preview until a second source matches.

In: $1.1 · Out: $4.4/1M

OpenAI o-Series Lineage & Sibling Variants

2 models

Currently comparing OpenAI: o3 Mini vs OpenAI: o4 Mini High. Alternative family tiers available.

Active: OpenAI: o3 Mini
OpenAI: o1$60

OpenAI: o3 Mini Thinking Depth & Cost Scaler

Model A

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 OpenAI: o3 Mini
All Matchups
Compare vs:vs Claude Opus 4.5vs Gemini 3 Provs Grok 4.6vs DeepSeek V4 Provs Qwen 3 Max
Preference Leader

No shared data

Single model data

Throughput Leader

No shared data

No latency data

Value per Dollar LeaderOpenAI: o3 Mini Wins

OpenAI: o3 Mini

$4.4 / 1M output

Capability Percentiles

Relative percentile scores computed across all active models in the benchmark catalog.

Multi-Dimensional Capability Radar

Leaders Matchup Capability Radar

Comparing top standard models across 6 key capability dimensions. Tap any spoke or dot to inspect.

Tap any node to inspect
0–100 %ile

Overall Matchup Breakdown

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

OpenAI: o3 Mini (7)vsOpenAI: o4 Mini High (0)
OpenAI: o3 Mini: 7W (100%)Overall: OpenAI: o3 MiniOpenAI: o4 Mini High: 0W (0%)
← OpenAI: o3 Mini3 tiesOpenAI: o4 Mini High →
🏆OpenAI: o3 Mini Leads(5/5)

Intelligence & Reasoning

Preference Elo, Coding proficiency, SWE-bench & LiveBench accuracy

Benchmark
OpenAI: o3 MinivsOpenAI: o4 Mini High
Preference Elo
1,560vs—
Coding Elo
1,585vs—
SWE-bench
78.5%vs—
LiveBench
72.4%vs—
GPQA Diamond
87.2%vs—
OpenAI: o3 Mini: 5WOpenAI: o4 Mini High: 0W
🏆OpenAI: o3 Mini Leads(2/2)

Speed & Latency

Generation throughput and time to first token responsiveness

Benchmark
OpenAI: o3 MinivsOpenAI: o4 Mini High
Output speed
92 tok/svs—
Time to first token
290 msvs—
OpenAI: o3 Mini: 2WOpenAI: o4 Mini High: 0W
Tied (0-0)

Pricing & Capacity

Cost per million tokens and max context window length

Benchmark
OpenAI: o3 MinivsOpenAI: o4 Mini High
Output price
$4.4/1Mvs$4.4/1M
Input price
$1.1/1Mvs$1.1/1M
Context window
200kvs200k
OpenAI: o3 Mini: 0WOpenAI: o4 Mini High: 0W

Side-by-Side Benchmark Matrix

OpenAI: o3 MiniOpenAI: o4 Mini High
Preference Elo
OpenAI: o3 Mini1,560
OpenAI: o4 Mini High—
Coding Elo
OpenAI: o3 Mini1,585
OpenAI: o4 Mini High—
LiveBench
OpenAI: o3 Mini72.4%
OpenAI: o4 Mini High—
SWE-bench
OpenAI: o3 Mini78.5%
OpenAI: o4 Mini High—
GPQA Diamond
OpenAI: o3 Mini87.2%
OpenAI: o4 Mini High—
Time to first token
OpenAI: o3 Mini290 ms
OpenAI: o4 Mini High—
Output speed
OpenAI: o3 Mini92 tok/s
OpenAI: o4 Mini High—
Input price
OpenAI: o3 Mini$1.1/1M
OpenAI: o4 Mini High$1.1/1M
Output price
OpenAI: o3 Mini$4.4/1M
OpenAI: o4 Mini High$4.4/1M
Context window
OpenAI: o3 Mini200k
OpenAI: o4 Mini High200k
BenchmarkOpenAI: o3 MiniOpenAI: o4 Mini HighAdvantage Delta
Preference Elo
1,560
lmarena · Aug 17, 2026
——
Coding Elo
1,585
lmarena · Aug 17, 2026
——
LiveBench
72.4%
livebench · Aug 17, 2026
——
SWE-bench
78.5%
swebench · Aug 17, 2026
——
GPQA Diamond
87.2%
seed-bootstrap · Aug 1, 2026
——
Time to first token
290 ms
seed-bootstrap · Aug 1, 2026
——
Output speed
92 tok/s
seed-bootstrap · Aug 1, 2026
——
Input price
$1.1/1M
openrouter · Aug 17, 2026
$1.1/1M
openrouter · Aug 17, 2026
—
Output price
$4.4/1M
openrouter · Aug 17, 2026
$4.4/1M
openrouter · Aug 17, 2026
—
Context window
200k
openrouter · Aug 17, 2026
200k
openrouter · Aug 17, 2026
—

Workload Cost & Savings Calculator

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

Monthly Volume50M tokens/mo
Quick Presets:
Token Ratio (In vs Out)70% In / 30% Out
RAG / Search (10% out)Coding / Chat (50% out)
OpenAI: o3 Mini$104.50 / mo
In: $38.5Out: $66
OpenAI: o4 Mini High$104.50 / mo
In: $38.5Out: $66

Key Selection Recommendations

  • 1
    OpenAI: o3 Mini:Pick OpenAI: o3 Mini when you are optimizing output cost.

Recommended Workload Routing

Repo / coding agentsinsufficient data

Need SWE-bench on both sides.

High-volume chatOpenAI: o3 Mini

Lower output list price ($4.4/1M).

Voice / low-latency UIinsufficient data

Need TTFT on both sides.

Long-document RAGOpenAI: o3 Mini

Larger window (200k).

Screenshots / visionOpenAI: o4 Mini High

OpenAI: o4 Mini High is the side marked multimodal in the catalog.

Target WorkloadRecommended PickEvaluation Rationale
Repo / coding agentsinsufficient dataNeed SWE-bench on both sides.
High-volume chatOpenAI: o3 MiniLower output list price ($4.4/1M).
Voice / low-latency UIinsufficient dataNeed TTFT on both sides.
Long-document RAGOpenAI: o3 MiniLarger window (200k).
Screenshots / visionOpenAI: o4 Mini HighOpenAI: o4 Mini High is the side marked multimodal in the catalog.

Cast Your Matchup Vote

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CompareLLM AI Matrix

Verified Head-to-Head Telemetry

LIVE BENCHMARK
VS
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
OpenAI

OpenAI: o4 Mini High

Elo n/a
SWE-bench—
Speed (tok/s)200k
Input / 1M Tokens$1.1/1M
Output / 1M Tokens$4.4/1M

Frequently Asked Questions

Which is better overall, OpenAI: o3 Mini or OpenAI: o4 Mini High?
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, OpenAI: o3 Mini or OpenAI: o4 Mini High?
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?
OpenAI: o3 Mini output tokens are $4.4/1M versus $4.4/1M. Input prices and retry rates still move the real bill.
Which is faster, OpenAI: o3 Mini or OpenAI: o4 Mini High?
We do not have TTFT for both models.
Which has the larger context window?
OpenAI: o3 Mini accepts 200k tokens versus 200k.
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. OpenAI: o3 Mini and OpenAI: o4 Mini High Elo cells are dated snapshots from the named source — we do not compute Arena ourselves.

Similar Head-to-Head Comparisons

All OpenAI: o3 Mini matchups →|All OpenAI: o4 Mini High matchups →
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 MiniGPT-5.6 Terra vs OpenAI: o3 MiniGPT-4.5 Orion vs OpenAI: o3 MiniGPT-5.6 Sol vs OpenAI: o3 Mini