What is the difference between Gemini 2.5 Flash Preview (thinking) and GPT-6 Sol?

Gemini 2.5 Flash Preview (thinking) is developed by Google AI while GPT-6 Sol is developed by OpenAI. Gemini 2.5 Flash Preview (thinking) has a 1.0M token context window vs GPT-6 Sol's 1.1M. You can compare their actual outputs across 2 challenges on Rival to see how they differ in practice.

Which is better, Gemini 2.5 Flash Preview (thinking) or GPT-6 Sol?

It depends on your use case. Gemini 2.5 Flash Preview (thinking) and GPT-6 Sol each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 2 challenges so you can judge which fits your needs best.

How much does Gemini 2.5 Flash Preview (thinking) cost compared to GPT-6 Sol?

Gemini 2.5 Flash Preview (thinking) costs $0.175/M input tokens and GPT-6 Sol costs $2/M input tokens. Gemini 2.5 Flash Preview (thinking) is $1.82/M cheaper per input. Check their side-by-side outputs on Rival to see if the price difference is justified by quality.

How can I compare Gemini 2.5 Flash Preview (thinking) and GPT-6 Sol on Rival?

This page shows a side-by-side comparison of Gemini 2.5 Flash Preview (thinking) 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.

Updated Sep 2026

Gemini 2.5 Flash Preview (thinking)vsGPT-6 Sol

Gemini 2.5 Flash Preview (thinking) is cheaper than GPT-6 Sol at $0.175/M vs $2/M input tokens.

Gemini 2.5 Flash Preview (thinking) and GPT-6 Sol compared across 2 shared prompts
Spec	Gemini 2.5 Flash Preview (thinking)	GPT-6 Sol
Input price	$0.175/M tokens	$2/M tokens
Output price	$3.5/M tokens	$10/M tokens
Context window	1.0M tokens	1.1M tokens
Weights	—	Closed
Free API (OpenRouter)	No	No
Released	Apr 2025	Sep 2026

Side by side

Same prompt, both answers

Opening lines from every prompt both answered. Formatting stripped, words untouched.

Simple 7-Ingredient Recipe

Create a simple recipe for a delicious dish (sweet or savory) using only 7 common pantry ingredients. Include a creative name for the dish…

Gemini 2.5 Flash Preview (thinking)272 words

Okay, here is a simple, delicious savory recipe using only 7 common pantry ingredients. Dish Name: Sunshine Lentil Soup This is a bright, comforting soup that\'s surprisingly flavorful with just a few staples.

Read the full answer

GPT-6 Sol90 words

Smoky Sunset Chickpeas Prep: 5 minutes · Cook: 15 minutes · Serves: 2 Ingredients 1 can chickpeas, drained 1 can diced tomatoes 1 tablespoon olive oil 2 garlic cloves, minced 1 teaspoon dried oregano ½ teaspoon smoked paprika ½ teaspoon salt Instructions Heat the olive oil in a skillet over medium heat.

Read the full answer

Beginner's Longevity Plan

Outline a simple, actionable 1-month plan for someone starting their journey towards better health and longevity. Focus on 3 key areas…

Gemini 2.5 Flash Preview (thinking)867 words

Okay, here is a simple, actionable 1-month plan for a beginner focusing on Diet, Exercise, and Sleep for better health and longevity. Goal: To build foundational, sustainable habits in 3 key health areas over 30 days.

Read the full answer

GPT-6 Sol218 words

A simple 1-month health plan Focus on food, movement, and sleep. Start small enough that you can repeat the habits most days. Week Food Movement Sleep 1: Set a baseline Add a fruit or vegetable to one meal each day. Walk for 10 minutes, 4 days this week. Pick a consistent wake-up time.

Read the full answer

Our Verdict

GPT-6 Sol

Gemini 2.5 Flash Preview (thinking)Runner-up

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

Too close to call

API pricing

Cost per 1M tokens

Gemini 2.5 Flash Preview (thinking)

Input

$0.17

11× cheaper

Output

$3.50

2.9× cheaper

GPT-6 Sol

Input

$2.00

Output

$10.00

Gemini 2.5 Flash Preview (thinking) is cheaper on both: 11× input, 2.9× output.

Where to run it

3 hosts, cheapest first

Gemini 2.5 Flash Preview (thinking)

No hosts listed on OpenRouter.

GPT-6 Sol3 hosts

HostInOutContextUptime

Azure AI Foundry$2.00 in$10.00 out1.1M96.6% up OpenAI$2.00 in$10.00 out1.1M100% up Amazon Bedrock$2.20 in$11.00 out1.1M99.9% up

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

Research

What we learned reading every model

FAQ

Common questions

Keep exploring

More comparisons

Same prompt, both answers

Simple 7-Ingredient Recipe

Beginner's Longevity Plan

Cost per 1M tokens

3 hosts, cheapest first

What we learned reading every model

Common questions

What is the difference between Gemini 2.5 Flash Preview (thinking) and GPT-6 Sol?

Which is better, Gemini 2.5 Flash Preview (thinking) or GPT-6 Sol?

How much does Gemini 2.5 Flash Preview (thinking) cost compared to GPT-6 Sol?

How can I compare Gemini 2.5 Flash Preview (thinking) and GPT-6 Sol on Rival?

More comparisons

Against the newest arrivals

Same lab, same size, long tail

Model pages

Same prompt, both answers

Simple 7-Ingredient Recipe

Beginner's Longevity Plan

Cost per 1M tokens

3 hosts, cheapest first

What we learned reading every model

Common questions

What is the difference between Gemini 2.5 Flash Preview (thinking) and GPT-6 Sol?

Which is better, Gemini 2.5 Flash Preview (thinking) or GPT-6 Sol?

How much does Gemini 2.5 Flash Preview (thinking) cost compared to GPT-6 Sol?

How can I compare Gemini 2.5 Flash Preview (thinking) and GPT-6 Sol on Rival?

More comparisons

Against the newest arrivals

Same lab, same size, long tail

Model pages