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GPT-5.4 Mini vs O1

The readout for GPT-5.4 Mini and O1, before the detailed comparison sheet.

Key Takeaways

Weighted outcome: GPT-5.4 Mini. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.

Decision read

GPT-5.4 Mini

GPT-5.4 Mini has the higher weighted result; Model A / B score 73.3 to 26.7.

Evidence depth

104 data points

Includes 20 benchmark rows, 0 audit samples, and 9 provider examples.

Selection signal

Start with GPT-5.4 Mini

The charts below split 29 high-signal samples across speed, scores, and audit health.

Change comparison

Switch either side of this report to compare another model with the same LMSpeed data pipeline.

Select a different model to open a new comparison URL.

Comparison sheet

This report only uses LMSpeed data for GPT-5.4 Mini and O1: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.

Model compare
GPT-5.4 Mini
O1
Overall leaderLeadingContender
Weighted overall score73.3 pts26.7 pts
Benchmark category leads4 categories2 categories
Operational advantagesCheapest input price, Free providers, Provider coverageNo data
Context window400K tokens200K tokens
Max output128K tokens100K tokens
Modalities

Input

FileImageText

Output

Text

Input

TextImageFile

Output

Text
Features
Text inputImage inputFile inputText outputTool callingStructured outputsJSON modeReasoning
Text inputImage inputFile inputText outputTool callingStructured outputsJSON modeReasoning

The overall result weights benchmark capability categories at 80% and price, API speed/latency, and availability at 20%. Recent test volume does not affect the winner, and missing benchmark categories are excluded.

Model metadata

Model compare
GPT-5.4 Mini
O1
DeveloperOpenAIOpenAI
ReleasedMar 2026Dec 2024
ParametersNo dataNo data
TokenizerGPTGPT
Knowledge cutoff2025-08-312023-10-31
OpenRouter IDopenai/gpt-5.4-miniopenai/o1
ReferencesNo dataNo data

When to choose each model

This report only uses LMSpeed data for GPT-5.4 Mini and O1: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.

GPT-5.4 Mini

GPT-5.4 Mini is stronger in benchmark categories (Agents, Coding, Reasoning, Instruction following) and operational dimensions (Cheapest input price, Free providers, Provider coverage).

O1

O1 leads these benchmark categories: Knowledge, Math.

Benchmark score comparison

Third-party benchmark profile synced into LMSpeed; only metrics available for both models are shown.

Category performance

Compare benchmark category scores on a 0-100 scale. Select a category to inspect the gap.

Model A coverage
7 / 8
Model B coverage
6 / 8
Shared
6 shared categories

Avg. score

GPT-5.4 Mini

51.4

Avg. score

O1

52.2

Agents

GPT-5.4 Mini leads by 5.4

GPT-5.4 Mini50.9
O145.5

Coding

GPT-5.4 Mini leads by 6.7

GPT-5.4 Mini57.2
O150.5

Reasoning

GPT-5.4 Mini leads by 4.8

GPT-5.4 Mini55.5
O150.7

Knowledge

O1 leads by 16.5

GPT-5.4 Mini46
O162.5

Math

O1 leads by 2.9

GPT-5.4 Mini49.7
O152.6

Multilingual

No data

GPT-5.4 Mini-
O1-

Multimodal

GPT-5.4 Mini

GPT-5.4 Mini47.1
O1-

Instruction following

GPT-5.4 Mini leads by 2.1

GPT-5.4 Mini53.6
O151.5

Professional benchmark details

Metric-level scores with benchmark source, rank depth, confidence, error, and evaluation date where available.

Pricingverified

Input price

GPT-5.4 Mini

winner

$0.750/M

Rank #105/184 · confidence 4

+$14.25/M

O1

$15.00/M

Rank #177/184 · confidence 4

Pricingverified

Blended price

GPT-5.4 Mini

winner

$1.69/M

Rank #112/184 · confidence 4

+$24.56/M

O1

$26.25/M

Rank #177/184 · confidence 4

Pricingverified

Output price

GPT-5.4 Mini

winner

$4.50/M

Rank #124/184 · confidence 4

+$55.50/M

O1

$60.00/M

Rank #177/184 · confidence 4

Reasoningreported

CritPt

GPT-5.4 Mini

winner

10.0

Rank #30/84 · confidence 3 · eval date 2026-03-17

+9.7

O1

0.3

Rank #79/84 · confidence 1 · eval date 2024-12-01

Reasoningreported

AA-LCR

GPT-5.4 Mini

winner

73.0

Rank #40/101 · confidence 3 · eval date 2026-03-17

+9.7

O1

63.3

Rank #73/101 · confidence 1 · eval date 2024-12-01

Reasoningverified

GPQA

GPT-5.4 Mini

winner

82.3%

Rank #85/216 · confidence 4

+7.6%

O1

74.7%

Rank #123/216 · confidence 4

Reasoningverified

HLE

GPT-5.4 Mini

winner

18.6%

Rank #88/213 · confidence 4

+11.6%

O1

7.0%

Rank #139/213 · confidence 4

Codingreported

AA-SciCode

GPT-5.4 Mini

winner

49.9

Rank #30/109 · confidence 3 · eval date 2026-03-17

+14.1

O1

35.8

Rank #87/109 · confidence 1 · eval date 2024-12-01

Codingreported

AA Coding Index

GPT-5.4 Mini

winner

56.1

Rank #32/71 · confidence 3 · eval date 2026-03-17

+22.0

O1

34.0

Rank #55/71 · confidence 1 · eval date 2024-09-12

Codingverified

SciCode

GPT-5.4 Mini

winner

44.2%

Rank #54/209 · confidence 4

+8.4%

O1

35.8%

Rank #127/209 · confidence 4

Mathreported

FrontierMath v2 (Tiers 1-3)

GPT-5.4 Mini

winner

28.3

Rank #20/47 · confidence 3 · eval date 2026-03-17

+19.0

O1

9.3

Rank #34/47 · confidence 1 · eval date 2024-12-01

Mathreported

BenchLM Math score

GPT-5.4 Mini

winner

44.6

Rank #38/62 · confidence 3 · eval date 2026-03-17

+12.0

O1

32.6

Rank #48/62 · confidence 1 · eval date 2024-12-01

Knowledgereported

AA-Omniscience Hallucination Rate

GPT-5.4 Mini

winner

90.2

Rank #18/102 · confidence 3 · eval date 2026-03-17

+20.6

O1

69.6

Rank #55/102 · confidence 1 · eval date 2024-12-01

Knowledgereported

AA-Omniscience Accuracy

GPT-5.4 Mini

winner

37.5

Rank #41/102 · confidence 3 · eval date 2026-03-17

+3.0

O1

34.5

Rank #44/102 · confidence 1 · eval date 2024-12-01

Knowledgereported

Artificial Analysis Intelligence Index

GPT-5.4 Mini

winner

40.9

Rank #41/112 · confidence 3 · eval date 2026-03-17

+23.7

O1

17.2

Rank #91/112 · confidence 1 · eval date 2024-09-12

Knowledgereported

AA-GPQA Diamond

GPT-5.4 Mini

winner

87.5

Rank #43/109 · confidence 3 · eval date 2026-03-17

+12.8

O1

74.7

Rank #85/109 · confidence 1 · eval date 2024-12-01

Knowledgereported

BenchLM Knowledge score

GPT-5.4 Mini

56.9

Rank #52/70 · confidence 3 · eval date 2026-03-17

+7.1

O1

winner

64.0

Rank #44/70 · confidence 1 · eval date 2024-12-01

Knowledgereported

AA-HLE

GPT-5.4 Mini

winner

28.1

Rank #51/109 · confidence 3 · eval date 2026-03-17

+21.1

O1

7.0

Rank #86/109 · confidence 1 · eval date 2024-12-01

Instruction followingreported

AA-IFBench

GPT-5.4 Mini

winner

73.3

Rank #24/84 · confidence 3 · eval date 2026-03-17

+3.0

O1

70.3

Rank #35/84 · confidence 1 · eval date 2024-12-01

Agentsreported

τ²-bench results

GPT-5.4 Mini

winner

93.4

Rank #29/82 · confidence 3 · eval date 2026-03-17

+30.8

O1

62.6

Rank #61/82 · confidence 1 · eval date 2024-12-01

API audit comparison

Latest completed audits from shared providers, with four safety and integrity score groups plus report links.

Provider
GPT-5.4 Mini
O1
No completed audits are available from shared providers yet.

Provider examples

Speed aggregates and input/output pricing share each provider row for real API selection and migration cost checks.

Provider
GPT-5.4 Mini
O1

GPT-5.4 Mini

speed / latency

98 tok/s / 4039ms

input / output

No data

O1

speed / latency

N/A / N/A

input / output

No data

GPT-5.4 Mini

speed / latency

195 tok/s / 1104ms

input / output

No data

O1

speed / latency

N/A / N/A

input / output

No data

YUNWU API5 tests

GPT-5.4 Mini

gpt-5.4-mini

speed / latency

201 tok/s / 1441ms

input / output

$0.010/M/$0.062/M

O1

o1

speed / latency

N/A / N/A

input / output

$0.360/M/$1.44/M

GPT-5.4 Mini

speed / latency

N/A / N/A

input / output

No data

O1

speed / latency

N/A / N/A

input / output

No data

AAAI0 tests

GPT-5.4 Mini

speed / latency

N/A / N/A

input / output

No data

O1

speed / latency

N/A / N/A

input / output

No data

GPT-5.4 Mini

gpt-5.4-mini

speed / latency

No data

input / output

$0/request

O1

o1-2024-12-17

speed / latency

No data

input / output

$0/request

GPT-5.4 Mini

gpt-5.4-mini

speed / latency

No data

input / output

$0.010/M/$0.062/M

O1

o1

speed / latency

No data

input / output

$1.03/M/$4.11/M

GPT-5.4 Mini

gpt-5.4-mini

speed / latency

No data

input / output

$0.010/M/$0.062/M

O1

o1

speed / latency

No data

input / output

$0.360/M/$1.44/M

GPT-5.4 Mini

gpt-5.4-mini

speed / latency

No data

input / output

$0.010/M/$0.062/M

O1

o1-preview-2024-09-12

speed / latency

No data

input / output

$0.360/M/$1.44/M

FAQ

Weighted outcome: GPT-5.4 Mini. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.

Why is this comparison indexable?
It has 4 verifiable comparison points, and both models have pricing or benchmark data.
Are missing metrics invented?
No. Metrics without LMSpeed data are omitted from this report.

Rankings are based on community-submitted tests and periodic health probes. Advisory only, not official data.