Sponsored byFusecodeEnterprise coding API for Claude Code, Codex, and model workflows.
LogoLMSpeed
  • Free
  • Models
  • Providers
  • Leaderboard
  • Docs
LogoLMSpeed
  1. Home
  2. Compare
  3. Models
  4. Gpt 5.4 vs Qwen3.8 Max
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
Tools
  • Speed Test
  • Provider Audit
Company
  • About
Resources
  • Provider Directory
  • Documentation
  • Public API
  • Botab
  • VidBee
Legal
  • Cookie Policy
  • Privacy Policy
  • Terms of Service
© 2026 LMSpeed All Rights Reserved.Made by Nexmoe with ❤️
Back to models

Data points: 67

Model compare

GPT-5.4 vs Qwen3.8 Max

The readout for GPT-5.4 and Qwen3.8 Max, before the detailed comparison sheet.

Model A

OpenAI

GPT-5.4

OpenAI

Leading
vs

Model B

Qwen

Qwen3.8 Max

Qwen

Contender

Key Takeaways

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

Decision read

GPT-5.4

GPT-5.4 has the higher weighted result; Model A / B score 66.7 to 33.3.

Evidence depth

67 data points

Includes 0 benchmark rows, 1 audit samples, and 7 provider examples.

Selection signal

Start with GPT-5.4

The charts below split 8 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.

On this page

Comparison sheetWhen to choose each modelBenchmark score comparisonAPI audit comparisonProvider examplesFAQ

Comparison sheet

This report only uses LMSpeed data for GPT-5.4 and Qwen3.8 Max: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.

Model compare
OpenAIGPT-5.4
QwenQwen3.8 Max
Overall leaderLeadingContender
Weighted overall score66.7 pts33.3 pts
Benchmark category leads0 categories0 categories
Operational advantagesFree providers, Provider coverageCheapest input price
Context window1.1M tokens1M tokens
Max output128K tokens131.1K tokens
Modalities

Input

TextImageFile

Output

Text

Input

TextImagevideo

Output

Text
Features
Text inputImage inputFile inputText outputTool callingStructured outputsJSON modeReasoning
Text inputImage 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
OpenAIGPT-5.4
QwenQwen3.8 Max
DeveloperOpenAIQwen
ReleasedMar 2026Aug 2026
ParametersNo dataNo data
TokenizerGPTQwen
Knowledge cutoffNo dataNo data
OpenRouter IDopenai/gpt-5.4qwen/qwen3.8-max
ReferencesNo dataNo data

When to choose each model

This report only uses LMSpeed data for GPT-5.4 and Qwen3.8 Max: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.

OpenAI

GPT-5.4

GPT-5.4 has these operational advantages: Free providers, Provider coverage.

Qwen

Qwen3.8 Max

Qwen3.8 Max has these operational advantages: Cheapest input price.

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
0 / 8
Shared
0 shared categories

Avg. score

GPT-5.4

57.6

Avg. score

Qwen3.8 Max

-

Agents

GPT-5.4

GPT-5.457.8
Qwen3.8 Max-

Coding

GPT-5.4

GPT-5.463
Qwen3.8 Max-

Reasoning

GPT-5.4

GPT-5.456.8
Qwen3.8 Max-

Knowledge

GPT-5.4

GPT-5.459.9
Qwen3.8 Max-

Math

GPT-5.4

GPT-5.457.6
Qwen3.8 Max-

Multilingual

No data

GPT-5.4-
Qwen3.8 Max-

Multimodal

GPT-5.4

GPT-5.453.7
Qwen3.8 Max-

Instruction following

GPT-5.4

GPT-5.454.1
Qwen3.8 Max-

Professional benchmark details

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

No shared professional benchmark scores are available yet.

API audit comparison

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

Provider
OpenAIGPT-5.4
QwenQwen3.8 Max
钠 APIWinner: GPT-5.4
OpenAI

GPT-5.4

gpt-5.4

Audit score

90

View report
1008476100
Qwen

Qwen3.8 Max

qwen3.8-max-preview

No audit yet

Provider examples

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

Provider
OpenAIGPT-5.4
QwenQwen3.8 Max
331112 AI5 tests
OpenAI

GPT-5.4

speed / latency

86 tok/s / 6122ms

input / output

No data

Qwen

Qwen3.8 Max

speed / latency

N/A / N/A

input / output

No data

小水管 API5 tests
OpenAI

GPT-5.4

speed / latency

44 tok/s / 2518ms

input / output

No data

Qwen

Qwen3.8 Max

speed / latency

N/A / N/A

input / output

No data

91VIP0 tests
OpenAI

GPT-5.4

speed / latency

N/A / N/A

input / output

No data

Qwen

Qwen3.8 Max

speed / latency

N/A / N/A

input / output

No data

CaMeL AI0 tests
OpenAI

GPT-5.4

speed / latency

N/A / N/A

input / output

No data

Qwen

Qwen3.8 Max

speed / latency

N/A / N/A

input / output

No data

DeadlySignal API0 tests
OpenAI

GPT-5.4

speed / latency

N/A / N/A

input / output

No data

Qwen

Qwen3.8 Max

speed / latency

N/A / N/A

input / output

No data

FineOneAPI
OpenAI

GPT-5.4

gpt-5.4

speed / latency

No data

input / output

$2.50/M/$15.00/M

Qwen

Qwen3.8 Max

qwen3.8-max

speed / latency

No data

input / output

$0.0001/request

钠 API
OpenAI

GPT-5.4

gpt-5.4

speed / latency

No data

input / output

$0.068/M/$0.411/M

Qwen

Qwen3.8 Max

qwen3.8-max-preview

speed / latency

No data

input / output

$0.010/request

FAQ

Weighted outcome: GPT-5.4. 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.

Related compare reports

Continue from GPT-5.4 vs Qwen3.8 Max into nearby model comparisons with enough verified LMSpeed data.

OpenAIGPT 5 vs GPT-5.4gpt-5-vs-gpt-5-4OpenAIGPT 5 1 vs GPT-5.4gpt-5-1-vs-gpt-5-4OpenAIGPT 5 2 vs GPT-5.4gpt-5-2-vs-gpt-5-4OpenAIGPT 4 vs GPT-5.4gpt-4-vs-gpt-5-4

Data as of Aug 3, 2026, 06:50 PM·Rankings are based on community-submitted tests and periodic health probes. Advisory only, not official data.