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  5. DeepSeek V4 Flash Vision ExpvsGPT-5.1 Codex Max
Updated Aug 2026

DeepSeek V4 Flash Vision ExpvsGPT-5.1 Codex Max

DeepSeek V4 Flash Vision Exp is the newer model, released after GPT-5.1 Codex Max.

DeepSeek V4 Flash Vision Exp and GPT-5.1 Codex Max compared across 8 shared prompts
SpecDeepSeek V4 Flash Vision ExpGPT-5.1 Codex Max
Input price$0.22/M tokens—
Output price$0.66/M tokens—
Context window1.0M tokens—
WeightsOpenClosed
Free API (OpenRouter)NoNo
ReleasedAug 2026Dec 2025
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…

DeepSeek V4 Flash Vision Exp144 words
Sticky Soy-Glazed Midnight Noodles A sweet-savory, buttery noodle dish that comes together in about 20 minutes with pantry staples. Ingredients (7): 8 oz spaghetti or noodles 3 tbsp butter 3 cloves garlic, thinly sliced 2 tbsp soy sauce 1 tbsp honey ½ tsp chili flakes 1 tbsp sesame seeds Instructions: Cook the noodles…
Read the full answer
GPT-5.1 Codex Max175 words
Sunset Chickpea & Tomato Skillet A cozy, savory one-pan dish that comes together with staples you likely have on hand. Ingredients (7): 1 can (15 oz) chickpeas, drained and rinsed 1 can (14–15 oz) crushed tomatoes 1 medium onion, finely chopped 2 cloves garlic, minced (or 1 tsp garlic powder) 2 tbsp olive oil 1 tsp…
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…

DeepSeek V4 Flash Vision Exp565 words
Here’s a simple, beginner-friendly 1-month plan built around three key pillars: Nutrition, Movement, and Sleep & Stress. The goal is small, repeatable habits — not perfection. The 3 Key Areas Nutrition Goal: Eat more whole foods, more protein, and more plants.
Read the full answer
GPT-5.1 Codex Max386 words
Here's a simple four‑week framework to help you ease into healthier habits. It keeps the focus on three big levers you can control and builds gradually so it feels doable. Key areas: Nourishing food, regular movement, and rest/recovery.
Read the full answer
Our Verdict
DeepSeek V4 Flash Vision Exp
DeepSeek V4 Flash Vision Exp
GPT-5.1 Codex Max
GPT-5.1 Codex Max

Not enough votes to call it. On the specs, nothing separates them.

Too close to call
API pricing

Cost per 1M tokens

DeepSeek V4 Flash Vision Exp
Input
$0.22
Output
$0.66
GPT-5.1 Codex Max
Input
—
Output
—
Where to run it

6 hosts, cheapest first

DeepSeek V4 Flash Vision Exp5 hosts
HostInOutContextUptime
FFireworks$0.22 in·$0.66 out·1M·99.9% upGGMI Cloudfp8$0.44 in·$1.32 out·1M·99.8% upNNovita$0.44 in·$1.32 out·1M·99.9% upSSiliconFlowfp8$0.44 in·$1.32 out·1M·97.1% upDDeepInfrafp8degraded$0.22 in·$0.65 out·1M·77.7% up
GPT-5.1 Codex Max1 host
HostInOutContextUptime
Azure AI Foundry$1.25 in·$10.00 out·400k·100% up

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

Research

What we learned reading every model

FAQ

Common questions

DeepSeek V4 Flash Vision Exp is developed by DeepSeek while GPT-5.1 Codex Max is developed by OpenAI. You can compare their actual outputs across 8 challenges on Rival to see how they differ in practice.

It depends on your use case. DeepSeek V4 Flash Vision Exp and GPT-5.1 Codex Max 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 DeepSeek V4 Flash Vision Exp and GPT-5.1 Codex Max 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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DeepSeek V4 Flash Vision Exp logoSolar Pro 4 logo
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Same lab, same size, long tail

DeepSeek V4 Flash Vision Exp logoDeepSeek V4.1 Flash logo
DeepSeek V4 Flash Vision Exp vs DeepSeek V4.1 FlashSame lab
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GPT-5.1 Codex Max logoGPT-6 Astra Pro logo
GPT-5.1 Codex Max vs GPT-6 Astra ProSame lab
GPT-5.1 Codex Max logoGPT-6 Astra logo
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DeepSeek V4 Flash Vision Exp logoNVIDIA Nemotron Nano 9B V2 logo
DeepSeek V4 Flash Vision Exp vs NVIDIA Nemotron Nano 9B V2New provider
DeepSeek V4 Flash Vision Exp logoNex-N2.5-Mini (free) logo
DeepSeek V4 Flash Vision Exp vs Nex-N2.5-Mini (free)Same size
DeepSeek V4 Flash Vision Exp logoNex-N2.5-Pro (free) logo
DeepSeek V4 Flash Vision Exp vs Nex-N2.5-Pro (free)Same size
DeepSeek V4 Flash Vision Exp logoNorth Mini Code logo
DeepSeek V4 Flash Vision Exp vs North Mini CodeNew provider

Model pages

DeepSeek V4 Flash Vision Exp logo
DeepSeek V4 Flash Vision Exp8 outputs, specs and price
GPT-5.1 Codex Max logo
GPT-5.1 Codex Max53 outputs, specs and price
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