LogoLMSpeed
  • Home
  • Free
  • Models
  • Providers
  • Docs
LogoLMSpeed
LogoLMSpeed

The best API speed test tool

GitHubGitHubTwitterX (Twitter)Email
Product
  • Features
  • Pricing
  • FAQ
Leaderboard
  • Overview
  • Speed Ranking
  • Latency Ranking
  • Health Ranking
  • Model Pricing
  • Model Speed
  • Reasoning
  • Coding
Models
  • All Models
  • GPT
  • Claude
  • Gemini
  • DeepSeek
  • Llama
  • Qwen
Free Models
  • All Free Models
  • Free GPT
  • Free Claude
  • Free Gemini
  • Free DeepSeek
  • Free Llama
  • Free Qwen
Resources
  • Speed Test
  • Provider Directory
  • Documentation
Legal
  • Cookie Policy
  • Privacy Policy
  • Terms of Service
© 2026 LMSpeed All Rights Reserved.Made by Nexmoe with ❤️
Back to models

Data points: 81

On this page

Key TakeawaysComparison sheetBenchmark score comparisonAPI audit comparisonProvider examplesWhen to choose each modelFAQRelated compare reports

Key Takeaways

The readout for GPT-5.2 and GPT-5 Mini, before the detailed comparison sheet.

Decision read

GPT-5.2

GPT-5.2 currently has the stronger profile, with verified wins split 4 to 2.

Evidence depth

81 data points

Includes 8 benchmark rows, 0 audit samples, and 10 provider examples.

Selection signal

Start with GPT-5.2

The charts below split 18 high-signal samples across speed, scores, and audit health.

Model compare

GPT-5.2 vs GPT-5 Mini

gpt-5-2-vs-gpt-5-mini

Model A

OpenAI

GPT-5.2

Model B

OpenAI

GPT-5 Mini

Overall leaderLeadingContender
Verified metric wins4 wins2 wins
Where it leadsFirst-token latency, Free providers, Provider coverage, Recent testsCheapest input price, Average speed
Model metadataGPT-5.2 exposes 128K tokens; notable signals: Text input, Image input, File input, Text output.GPT-5 Mini exposes 400K tokens; notable signals: Text input, Image input, File input, Text output.
DeveloperOpenAIOpenAI
Context window128K tokens400K tokens
Max output16.4K tokens128K tokens
ReleasedDec 2025Aug 2025
Modalities

Input

FileImageText

Output

Text

Input

TextImageFile

Output

Text
Features
Text inputImage inputFile inputText outputTool callingStructured outputsJSON mode
Text inputImage inputFile inputText outputTool callingStructured outputsJSON modeReasoning
ParametersNo dataNo data
TokenizerGPTGPT
Knowledge cutoffNo data2024-05-31
OpenRouter IDopenai/gpt-5.2-chatopenai/gpt-5-mini
ReferencesNo dataNo data

Benchmark score comparison

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

Metric
OpenAIGPT-5.2
OpenAIGPT-5 Mini
LiveCodeBench
88.9%#4
83.8%#13
MMLU-Pro
87.4%#6
83.7%#23
GPQA
90.3%#9
82.8%#44
HLE
35.4%#9
19.7%#41
SciCode
52.1%#9
39.2%#50
Input price
$1.75/M#35
$0.250/M#12
Output price
$14.00/M#43
$2.00/M#24
Blended price
$4.81/M#62
$0.688/M#28

API audit comparison

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

Provider
OpenAIGPT-5.2
OpenAIGPT-5 Mini
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
OpenAIGPT-5.2
OpenAIGPT-5 Mini
N1N15 tests
OpenAI

GPT-5.2

speed / latency

56 tok/s / 1798ms

input / output

No data

OpenAI

GPT-5 Mini

speed / latency

N/A / N/A

input / output

No data

V-API10 tests
OpenAI

GPT-5.2

speed / latency

N/A / N/A

input / output

No data

OpenAI

GPT-5 Mini

speed / latency

76 tok/s / 6393ms

input / output

No data

小水管 API10 tests
OpenAI

GPT-5.2

speed / latency

71 tok/s / 2893ms

input / output

No data

OpenAI

GPT-5 Mini

speed / latency

94 tok/s / 6360ms

input / output

No data

ModelPool5 tests
OpenAI

GPT-5.2

speed / latency

64 tok/s / 5256ms

input / output

No data

OpenAI

GPT-5 Mini

speed / latency

N/A / N/A

input / output

No data

Rnglg2 API5 tests
OpenAI

GPT-5.2

speed / latency

55 tok/s / 1434ms

input / output

No data

OpenAI

GPT-5 Mini

speed / latency

N/A / N/A

input / output

No data

Koyeb AI Gateway
OpenAI

GPT-5.2

gpt-5.2-chat

speed / latency

No data

input / output

$0.037/M / $0.300/M

OpenAI

GPT-5 Mini

gpt-5-mini

speed / latency

No data

input / output

$0.0001/M / $0.0010/M

SWT-API
OpenAI

GPT-5.2

gpt-5.2-chat

speed / latency

No data

input / output

$0.037/M / $0.300/M

OpenAI

GPT-5 Mini

gpt-5-mini

speed / latency

No data

input / output

$0.0001/M / $0.0010/M

Yun API
OpenAI

GPT-5.2

gpt-5.2

speed / latency

No data

input / output

$0.0027/M / $0.0027/M

OpenAI

GPT-5 Mini

gpt-5-mini-2025-08-07

speed / latency

No data

input / output

$0.034/M / $0.274/M

Newagiai
OpenAI

GPT-5.2

gpt-5.2-all

speed / latency

No data

input / output

$0.0068/M / $0.0068/M

OpenAI

GPT-5 Mini

gpt-5-mini-minimal

speed / latency

No data

input / output

$0.034/M / $0.274/M

柏拉图AI
OpenAI

GPT-5.2

gpt-5.2-all

speed / latency

No data

input / output

$0.0068/M / $0.0068/M

OpenAI

GPT-5 Mini

gpt-5-mini-minimal

speed / latency

No data

input / output

$0.034/M / $0.274/M

When to choose each model

This report only uses LMSpeed data for GPT-5.2 and GPT-5 Mini: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.

Guidance
OpenAIGPT-5.2
OpenAIGPT-5 Mini
When to choose each model

GPT-5.2

GPT-5.2 is stronger when you prioritize First-token latency, Free providers, Provider coverage, Recent tests.

GPT-5 Mini

GPT-5 Mini is stronger when you prioritize Cheapest input price, Average speed.

FAQ

TL;DR: GPT-5.2 leads across 81 verifiable data points, including pricing, speed, latency, benchmarks, and provider examples.

Why is this comparison indexable?
It has 6 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.

Related compare reports

Continue from GPT-5.2 vs GPT-5 Mini into nearby model comparisons with enough verified LMSpeed data.

OpenAIGPT-5.2 vs GPT-5.46 verified data pointsClaudeClaude Opus 4.6 vs GPT-5.26 verified data pointsOpenAIGPT-5 vs GPT-5.26 verified data pointsGeminiGemini 2.5 Pro vs GPT-5.26 verified data points

Data as of Jun 13, 2026, 01:27 PM·Rankings are based on community-submitted tests and periodic health probes. Advisory only, not official data.