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  5. GPT-5.1 Codex MaxvsLing 3.0 Flash Sante (free)
Updated Sep 2026

GPT-5.1 Codex MaxvsLing 3.0 Flash Sante (free)

Ling 3.0 Flash Sante (free) is the newer model, released after GPT-5.1 Codex Max.

GPT-5.1 Codex Max and Ling 3.0 Flash Sante (free) compared across 19 shared prompts
SpecGPT-5.1 Codex MaxLing 3.0 Flash Sante (free)
Input price—Free
Output price—Free
Context window—262K tokens
WeightsClosed—
Free API (OpenRouter)NoYes (1 provider)
ReleasedDec 2025Sep 2026
Side by side

Same prompt, both answers

Opening lines from 3 of the 19 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-5.1 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…
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Ling 3.0 Flash Sante (free)137 words
The Midnight Cookie Vault A gooey, chocolatey skillet cookie that feels like a secret treasure. Ingredients (7): Butter (½ cup, softened) Brown sugar (¾ cup) All-purpose flour (1¼ cups) Eggs (2 large) Semi-sweet chocolate chips (½ cup) Baking powder (1 tsp) Vanilla extract (1 tsp) Instructions: Preheat oven to 350°F…
Read the full answer

Mini LBO Underwrite

You are underwriting a 5-year LBO for a private equity investment committee. Company (fictional): HarborTech Services (HTS) –…

GPT-5.1 Codex Max192 words
1) Projected cash flows & debt (FY2026–FY2030, $m) (“FCF after debt service” = after interest, taxes, capex, ΔNWC, mandatory amort; applied to optional TL paydown) Year Revenue EBITDA TL Cash Int. Mezz Cash Int. Cash Taxes Capex ΔNWC FCF after debt service End TL Bal. End Mezz Bal. (incl.
Read the full answer
Ling 3.0 Flash Sante (free)349 words
HarborTech Services – 5-Year LBO Underwriting Entry Summary Item Value FY2025 Revenue / EBITDA $900m / $120m Purchase EV (12.0x) $1,440m Transaction fees (2%) $28.8m → equity Term Loan (4.0x) $480m @ 9% cash, 1% amort Mezzanine (1.5x) $180m @ 12% cash + 2% PIK Equity invested $808.8m Year-by-Year Model (FY2026–FY2030)…
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-5.1 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
Ling 3.0 Flash Sante (free)240 words
Here’s a low-pressure, 4-week blueprint. Pick one area to start (Week 1), then stack the next. Consistency beats intensity. Sleep (The Longevity Foundation) Week 1: Set a fixed wake time (±30 min, even weekends). Week 2: No caffeine after 2 pm; stop screens 30 min before bed.
Read the full answer
Our Verdict
GPT-5.1 Codex Max
GPT-5.1 Codex Max
Ling 3.0 Flash Sante (free)
Ling 3.0 Flash Sante (free)Runner-up

Not enough votes to call it. On the specs, GPT-5.1 Codex Max has the edge: bigger model tier, major provider backing.

Too close to call

Reviewing agent-written code?See a Brief PR report

API pricing

Cost per 1M tokens

GPT-5.1 Codex Max
Input
—
Output
—
Ling 3.0 Flash Sante (free)
Input
$0.000
Output
$0.000
Where to run it

2 hosts

GPT-5.1 Codex Max1 host
HostInOutContextUptime
Azure AI Foundry$1.25 in·$10.00 out·400k·100% up
Ling 3.0 Flash Sante (free)1 host
HostInOutContextUptime
NNovita$0 in·$0 out·262k·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-5.1 Codex Max is developed by OpenAI while Ling 3.0 Flash Sante (free) is developed by inclusionAI. You can compare their actual outputs across 19 challenges on Rival to see how they differ in practice.

It depends on your use case. GPT-5.1 Codex Max and Ling 3.0 Flash Sante (free) each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 19 challenges so you can judge which fits your needs best.

This page shows a side-by-side comparison of GPT-5.1 Codex Max and Ling 3.0 Flash Sante (free) 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

GPT-5.1 Codex Max logo
GPT-5.1 Codex Max53 outputs, specs and price
Ling 3.0 Flash Sante (free) logo
Ling 3.0 Flash Sante (free)19 outputs, specs and price
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