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Sub2API

sub2api.fenglq.com

LMSpeed tracks Sub2API API pricing, model coverage, speed tests, and uptime signals for sub2api.fenglq.com.

An OpenAI-compatible API relay service by FengLQ, providing access to multiple AI models.

OpenAIGPT-5.4

Sub2API offers 23 LLM API models.

Speed benchmark average: 34 tok/s.

Sub2API interface preview
OverviewPerformance23HealthEmbed
Avg Speed34.32 tok/s
Latency1.75 s
Updated6/10/2026
Created At4/19/2026
Website

API Endpoints

  • sub2api.fenglq.com
    Domain registered 2/1/2023

Supported Models

ModelSpeedLatencyTests
OpenAIgpt-5.4-xhigh
16.28 tok/s
1.71s
10
OpenAIgpt-5.4
52.36 tok/s
1.79s
10

Available Models

21 models available (last updated: 4/19/2026)

claude-haiku-4-5-20251001claude-opus-4-5-20251101claude-opus-4-6claude-opus-4-7claude-sonnet-4-5-20250929claude-sonnet-4-6gpt-3.5-turbogpt-4gpt-4ogpt-5openaigpt-5.1openaigpt-5.1-codexopenaigpt-5.1-codex-maxopenaigpt-5.1-codex-miniopenaigpt-5.2openaigpt-5.2-codexopenaigpt-5.3-codexopenaigpt-5.3-codex-sparkopenaigpt-5.4openaigpt-5.4-miniopenai
Showing 20 of 21 models.

Data as of Jun 10, 2026, 09:21 AM·Rankings are based on community-submitted tests and periodic health probes. Advisory only, not official data.