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: 72

On this page

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

Key Takeaways

The readout for GPT-5.4 and MiMo-V2-Omni, before the detailed comparison sheet.

Decision read

GPT-5.4

GPT-5.4 currently has the stronger profile, with verified wins split 4 to 2.

Evidence depth

72 data points

Includes 6 benchmark rows, 1 audit samples, and 9 provider examples.

Selection signal

Start with GPT-5.4

The charts below split 16 high-signal samples across speed, scores, and audit health.

Model compare

GPT-5.4 vs MiMo-V2-Omni

gpt-5-4-vs-mimo-v2-omni

Model A

OpenAI

GPT-5.4

Model B

MiMo-V2-Omni

Overall leaderLeadingContender
Verified metric wins4 wins2 wins
Where it leadsCheapest input price, Free providers, Provider coverage, Recent testsAverage speed, First-token latency

Benchmark score comparison

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

Metric
OpenAIGPT-5.4
MiMo-V2-Omni
GPQA
92.0%#3
82.8%

API audit comparison

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

Provider
OpenAIGPT-5.4
MiMo-V2-Omni
Winner: GPT-5.4
OpenAI

GPT-5.4

gpt-5.4

Audit score

83

7279

Provider examples

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

Provider
OpenAIGPT-5.4
MiMo-V2-Omni
20 tests
OpenAI

GPT-5.4

speed / latency

51 tok/s / 4032ms

input / output

No data

MiMo-V2-Omni

When to choose each model

This report only uses LMSpeed data for GPT-5.4 and MiMo-V2-Omni: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.

Guidance
OpenAIGPT-5.4
MiMo-V2-Omni
When to choose each model

GPT-5.4

GPT-5.4 is stronger when you prioritize Cheapest input price, Free providers, Provider coverage, Recent tests.

MiMo-V2-Omni

MiMo-V2-Omni is stronger when you prioritize Average speed, First-token latency.

FAQ

TL;DR: GPT-5.4 leads across 72 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-5.4 vs MiMo-V2-Omni into nearby model comparisons with enough verified LMSpeed data.

Model metadataGPT-5.4 exposes 1.1M tokens; notable signals: Text input, Image input, File input, Text output.No OpenRouter metadata is available yet for this model.
DeveloperOpenAINo data
Context window1.1M tokensNo data
Max output128K tokensNo data
ReleasedMar 2026No data
Modalities

Input

TextImageFile

Output

Text
No data
Features
Text inputImage inputFile inputText outputTool callingStructured outputsJSON modeReasoning
None listed
ParametersNo dataNo data
TokenizerGPTNo data
Knowledge cutoffNo dataNo data
OpenRouter IDopenai/gpt-5.4No data
ReferencesNo dataNo data
#44
SciCode
56.6%#3
36.7%#68
HLE
41.6%#4
19.9%#40
Output speed
92.4 tok/s#56
79.3 tok/s#65
Time to first token
134.24 s#110
3.00 s#76
Time to first answer token
134.24 s#111
28.24 s#83
80
100

MiMo-V2-Omni

mimo-v2-omni

No audit yet

speed / latency

N/A / N/A

input / output

No data

星见雅 API20 tests
OpenAI

GPT-5.4

speed / latency

49 tok/s / 5435ms

input / output

No data

MiMo-V2-Omni

speed / latency

N/A / N/A

input / output

No data

6345ywz API15 tests
OpenAI

GPT-5.4

speed / latency

41 tok/s / 6581ms

input / output

No data

MiMo-V2-Omni

speed / latency

N/A / N/A

input / output

No data

0CHAT10 tests
OpenAI

GPT-5.4

speed / latency

51 tok/s / 2526ms

input / output

No data

MiMo-V2-Omni

speed / latency

N/A / N/A

input / output

No data

Fengsili API10 tests
OpenAI

GPT-5.4

speed / latency

88 tok/s / 6075ms

input / output

No data

MiMo-V2-Omni

speed / latency

N/A / N/A

input / output

No data

DNSHE
OpenAI

GPT-5.4

gpt-5.4-openai-compact

speed / latency

No data

input / output

$75.00/M / $450.00/M

MiMo-V2-Omni

mimo-v2-omni

speed / latency

No data

input / output

$0/M / $0/M

Claw API
OpenAI

GPT-5.4

gpt-5.4

speed / latency

No data

input / output

$0.342/M / $2.05/M

MiMo-V2-Omni

mimo-v2-omni

speed / latency

No data

input / output

$0.014/M / $0.014/M

Zero API
OpenAI

GPT-5.4

gpt-5.4

speed / latency

No data

input / output

$0.171/M / $1.03/M

MiMo-V2-Omni

mimo-v2-omni

speed / latency

No data

input / output

$0.027/M / $0.137/M

17NAS API
OpenAI

GPT-5.4

gpt-5.4

speed / latency

No data

input / output

$0.132/M / $0.789/M

MiMo-V2-Omni

mimo-v2-omni

speed / latency

No data

input / output

$0.031/M / $0.153/M

TokenFlux
View report
Sub2API
ClaudeClaude Opus 4.6 vs GPT-5.46 verified data points
OpenAIGPT-5 vs GPT-5.46 verified data points
OpenAIGPT-5.2 vs GPT-5.46 verified data points
GeminiGemini 2.5 Pro vs GPT-5.46 verified data points

Data as of Jun 13, 2026, 03:04 PM·Rankings are based on community-submitted tests and periodic health probes. Advisory only, not official data.