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  5. GPT-5 NanovsQwen3.8 Flash
Updated Aug 2026

GPT-5 NanovsQwen3.8 Flash

Qwen3.8 Flash is the newer model, released after GPT-5 Nano.

GPT-5 Nano and Qwen3.8 Flash compared across 8 shared prompts
SpecGPT-5 NanoQwen3.8 Flash
Input price—$0.15/M tokens
Output price—$0.47/M tokens
Context window—1.0M tokens
WeightsClosedClosed
Free API (OpenRouter)NoNo
ReleasedAug 2025Aug 2026
Side by side

Same prompt, both answers

Opening lines from 2 of the 8 prompts 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…

GPT-5 Nano196 words
Sunlit Lemon-Garlic Pasta A bright, quick dish using seven common pantry staples. Ingredients 8 oz spaghetti (or any pasta) 2 tablespoons olive oil 3 cloves garlic, minced 1 lemon (zest and juice) 1/2 teaspoon salt (to taste) 1/4 teaspoon black pepper 1/4 teaspoon red pepper flakes Instructions Bring a large pot of…
Read the full answer
Qwen3.8 Flash147 words
Moon Halo Cookies A soft, golden sugar cookie with crisp edges and a tender center—made with just 7 pantry staples. Prep time: 10 minutes Cook time: 10 minutes Total time: 20 minutes Makes: About 16 cookies Ingredients 1/2 cup butter, softened 3/4 cup sugar 1 egg 1 teaspoon vanilla extract 1 1/2 cups all-purpose flour…
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…

GPT-5 Nano1,089 words
Here’s a simple, actionable 1-month plan focused on three beginner-friendly pillars: Diet, Movement (exercise), and Sleep. It’s designed to be easy to start, with small weekly progressions you can actually stick to.
Read the full answer
Qwen3.8 Flash368 words
1-Month Beginner Health & Longevity Plan Focus areas: Nutrition, Movement, Sleep Week 1: Build the basics Nutrition Add 1 serving of vegetables to 2 meals per day. Drink water with each meal. Choose protein at most meals: eggs, beans, tofu, chicken, fish, yogurt. Movement Walk 10–15 minutes daily.
Read the full answer
Our Verdict
Qwen3.8 Flash
Qwen3.8 Flash
GPT-5 Nano
GPT-5 NanoRunner-up

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

Too close to call
API pricing

Cost per 1M tokens

GPT-5 Nano
Input
—
Output
—
Qwen3.8 Flash
Input
$0.15
Output
$0.47
Where to run it

3 hosts

GPT-5 Nano2 hosts
HostInOutContextUptime
Azure AI Foundry$0.05 in·$0.40 out·400k·99.9% upOpenAI$0.05 in·$0.40 out·400k·100% up
Qwen3.8 Flash1 host
HostInOutContextUptime
Alibaba Cloud$0.15 in·$0.47 out·1M·100% up

Per million tokens. Prices and uptime via OpenRouter, checked 22 Sep 2026.

Research

What we learned reading every model

FAQ

Common questions

GPT-5 Nano is developed by OpenAI while Qwen3.8 Flash is developed by Qwen. You can compare their actual outputs across 8 challenges on Rival to see how they differ in practice.

It depends on your use case. GPT-5 Nano and Qwen3.8 Flash each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 8 challenges so you can judge which fits your needs best.

This page shows a side-by-side comparison of GPT-5 Nano and Qwen3.8 Flash 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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Same lab, same size, long tail

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Qwen3.8 Flash logoGPT-5.1 logo
Qwen3.8 Flash vs GPT-5.1Cross-provider
Qwen3.8 Flash logoGPT-5.1 Chat logo
Qwen3.8 Flash vs GPT-5.1 ChatSame size
Qwen3.8 Flash logoGPT-5.1-Codex logo
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Qwen3.8 Flash logoGPT-5.1 Codex Max logo
Qwen3.8 Flash vs GPT-5.1 Codex MaxCross-provider

Model pages

GPT-5 Nano logo
GPT-5 Nano59 outputs, specs and price
Qwen3.8 Flash logo
Qwen3.8 Flash8 outputs, specs and price
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