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  5. Gemini 2.5 Flash Preview 05-20 (thinking)vsQwen3.8 Max Prime
Updated Sep 2026

Gemini 2.5 Flash Preview 05-20 (thinking)vsQwen3.8 Max Prime

Gemini 2.5 Flash Preview 05-20 (thinking) is cheaper than Qwen3.8 Max Prime at $0.15/M vs $4/M input tokens.

Gemini 2.5 Flash Preview 05-20 (thinking) and Qwen3.8 Max Prime compared across 1 shared prompts
SpecGemini 2.5 Flash Preview 05-20 (thinking)Qwen3.8 Max Prime
Input price$0.15/M tokens$4/M tokens
Output price$3.5/M tokens$12/M tokens
Context window1.0M tokens1.0M tokens
Weights—Closed
Free API (OpenRouter)NoNo
ReleasedMay 2025Sep 2026
Our Verdict
Qwen3.8 Max Prime
Qwen3.8 Max Prime
Gemini 2.5 Flash Preview 05-20 (thinking)
Gemini 2.5 Flash Preview 05-20 (thinking)Runner-up

Not enough votes to call it. On the specs, Qwen3.8 Max Prime has the edge: bigger model tier, newer.

Gemini 2.5 Flash Preview 05-20 (thinking) costs 3.4x 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 (thinking)
Input
$0.15
27× cheaper
Output
$3.50
3.4× cheaper
Qwen3.8 Max Prime
Input
$4.00
Output
$12.00

Gemini 2.5 Flash Preview 05-20 (thinking) is cheaper on both: 27× input, 3.4× output.

Where to run it

1 host

Gemini 2.5 Flash Preview 05-20 (thinking)

No hosts listed on OpenRouter.

Qwen3.8 Max Prime1 host
HostInOutContextUptime
Alibaba Cloud$4.00 in·$12.00 out·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 (thinking) is developed by Google AI while Qwen3.8 Max Prime is developed by Qwen. Gemini 2.5 Flash Preview 05-20 (thinking) has a 1.0M token context window vs Qwen3.8 Max Prime's 1.0M. 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 (thinking) and Qwen3.8 Max Prime 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 (thinking) costs $0.15/M input tokens and Qwen3.8 Max Prime costs $4/M input tokens. Gemini 2.5 Flash Preview 05-20 (thinking) is $3.85/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 (thinking) and Qwen3.8 Max Prime 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

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Model pages

Gemini 2.5 Flash Preview 05-20 (thinking) logo
Gemini 2.5 Flash Preview 05-20 (thinking)12 outputs, specs and price
Qwen3.8 Max Prime logo
Qwen3.8 Max Prime19 outputs, specs and price
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