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  5. GPT-4vsQuasar Alpha
Updated Apr 2025

GPT-4vsQuasar Alpha

Quasar Alpha has a larger context window than GPT-4 (1.0M tokens vs 8K tokens).

GPT-4 and Quasar Alpha compared across 3 shared prompts
SpecGPT-4Quasar Alpha
Input price$30/M tokens—
Output price$60/M tokens—
Context window8K tokens1.0M tokens
ParametersNot disclosedNot disclosed
WeightsClosed—
Free API (OpenRouter)No—
ReleasedMay 2023Apr 2025
Our Verdict
GPT-4
GPT-4
Quasar Alpha
Quasar Alpha

Not enough votes to call it. On the specs, nothing separates them.

Too close to call
API pricing

Cost per 1M tokens

GPT-4
Input
$30.00
Output
$60.00
Quasar Alpha
Input
—
Output
—
Where to run it

2 hosts

GPT-42 hosts
HostInOutContextUptime
Azure AI Foundry$30.00 in·$60.00 out·8k·100% upOpenAI$30.00 in·$60.00 out·8k·100% up
Quasar Alpha

No hosts listed on OpenRouter.

Per million tokens. Prices and uptime via OpenRouter, checked 21 Sep 2026.

Research

What we learned reading every model

FAQ

Common questions

GPT-4 is developed by OpenAI while Quasar Alpha is developed by OpenRouter. GPT-4 has a 8K token context window vs Quasar Alpha's 1.0M. You can compare their actual outputs across 3 challenges on Rival to see how they differ in practice.

It depends on your use case. GPT-4 and Quasar Alpha each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 3 challenges so you can judge which fits your needs best.

This page shows a side-by-side comparison of GPT-4 and Quasar Alpha across shared challenges. You can vote on which model produced the better output in a blind duel. Browsing and voting are free. No account is needed to look; signing in only saves your votes and likes.

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