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  5. Gemini 2.5 Flash Preview 05-20vsGPT-6 Sol
Updated Sep 2026

Gemini 2.5 Flash Preview 05-20vsGPT-6 Sol

Gemini 2.5 Flash Preview 05-20 is cheaper than GPT-6 Sol at $0.15/M vs $2/M input tokens.

Gemini 2.5 Flash Preview 05-20 and GPT-6 Sol compared across 1 shared prompts
SpecGemini 2.5 Flash Preview 05-20GPT-6 Sol
Input price$0.15/M tokens$2/M tokens
Output price$0.6/M tokens$10/M tokens
Context window1.0M tokens1.1M tokens
Weights—Closed
Free API (OpenRouter)NoNo
ReleasedMay 2025Sep 2026
Our Verdict
GPT-6 Sol
GPT-6 Sol
Gemini 2.5 Flash Preview 05-20
Gemini 2.5 Flash Preview 05-20Runner-up

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

Gemini 2.5 Flash Preview 05-20 costs 17x less per token.

Too close to call

Reviewing agent-written code?See a Brief PR report

API pricing

Cost per 1M tokens

Gemini 2.5 Flash Preview 05-20
Input
$0.15
13× cheaper
Output
$0.60
17× cheaper
GPT-6 Sol
Input
$2.00
Output
$10.00

Gemini 2.5 Flash Preview 05-20 is cheaper on both: 13× input, 17× output.

Where to run it

3 hosts, cheapest first

Gemini 2.5 Flash Preview 05-20

No hosts listed on OpenRouter.

GPT-6 Sol3 hosts
HostInOutContextUptime
Azure AI Foundry$2.00 in·$10.00 out·1.1M·96.6% upOpenAI$2.00 in·$10.00 out·1.1M·100% upAmazon Bedrock$2.20 in·$11.00 out·1.1M·99.9% up

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

Research

What we learned reading every model

FAQ

Common questions

Gemini 2.5 Flash Preview 05-20 is developed by Google AI while GPT-6 Sol is developed by OpenAI. Gemini 2.5 Flash Preview 05-20 has a 1.0M token context window vs GPT-6 Sol's 1.1M. You can compare their actual outputs across 1 challenges on Rival to see how they differ in practice.

It depends on your use case. Gemini 2.5 Flash Preview 05-20 and GPT-6 Sol each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 1 challenges so you can judge which fits your needs best.

Gemini 2.5 Flash Preview 05-20 costs $0.15/M input tokens and GPT-6 Sol costs $2/M input tokens. Gemini 2.5 Flash Preview 05-20 is $1.85/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 Gemini 2.5 Flash Preview 05-20 and GPT-6 Sol 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.

Keep exploring

More comparisons

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Same lab, same size, long tail

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Model pages

Gemini 2.5 Flash Preview 05-20 logo
Gemini 2.5 Flash Preview 05-2011 outputs, specs and price
GPT-6 Sol logo
GPT-6 Sol20 outputs, specs and price
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