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  5. GPT-6 Sol ProvsGrok 3 Mini Beta
Updated Sep 2026

GPT-6 Sol ProvsGrok 3 Mini Beta

Grok 3 Mini Beta is cheaper than GPT-6 Sol Pro at $0.4/M vs $2/M input tokens.

GPT-6 Sol Pro and Grok 3 Mini Beta compared across 5 shared prompts
SpecGPT-6 Sol ProGrok 3 Mini Beta
Input price$2/M tokens$0.4/M tokens
Output price$10/M tokens$0.8/M tokens
Context window1.1M tokens131K tokens
WeightsClosed—
Free API (OpenRouter)NoNo
ReleasedSep 2026Apr 2025
Our Verdict
GPT-6 Sol Pro
GPT-6 Sol Pro
Grok 3 Mini Beta
Grok 3 Mini BetaRunner-up

Not enough votes to call it. On the specs, GPT-6 Sol Pro has the edge: bigger model tier, newer, bigger context window.

Grok 3 Mini Beta costs 13x less per token.

Slight edge
API pricing

Cost per 1M tokens

GPT-6 Sol Pro
Input
$2.00
Output
$10.00
Grok 3 Mini Beta
Input
$0.40
5.0× cheaper
Output
$0.80
13× cheaper

Grok 3 Mini Beta is cheaper on both: 5.0× input, 13× output.

Where to run it

2 hosts

GPT-6 Sol Pro2 hosts
HostInOutContextUptime
Azure AI Foundry$2.00 in·$10.00 out·1.1M·99.9% upOpenAI$2.00 in·$10.00 out·1.1M·100% up
Grok 3 Mini Beta

No hosts listed on OpenRouter.

Per million tokens. Prices and uptime via OpenRouter, checked 25 Sep 2026.

Research

What we learned reading every model

FAQ

Common questions

GPT-6 Sol Pro is developed by OpenAI while Grok 3 Mini Beta is developed by xAI. GPT-6 Sol Pro has a 1.1M token context window vs Grok 3 Mini Beta's 131K. You can compare their actual outputs across 5 challenges on Rival to see how they differ in practice.

It depends on your use case. GPT-6 Sol Pro and Grok 3 Mini Beta each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 5 challenges so you can judge which fits your needs best.

GPT-6 Sol Pro costs $2/M input tokens and Grok 3 Mini Beta costs $0.4/M input tokens. Grok 3 Mini Beta is $1.60/M cheaper per input. Check their side-by-side outputs on Rival to see if the price difference is justified by quality.

This page shows a side-by-side comparison of GPT-6 Sol Pro and Grok 3 Mini Beta 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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Model pages

GPT-6 Sol Pro logo
GPT-6 Sol Pro20 outputs, specs and price
Grok 3 Mini Beta logo
Grok 3 Mini Beta13 outputs, specs and price
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