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  5. GPT-5.4 ProvsLing 3.0 Flash VL (free)
Updated Sep 2026

GPT-5.4 ProvsLing 3.0 Flash VL (free)

Ling 3.0 Flash VL (free) is cheaper than GPT-5.4 Pro at $0/M vs $30/M input tokens.

GPT-5.4 Pro and Ling 3.0 Flash VL (free) compared across 17 shared prompts
SpecGPT-5.4 ProLing 3.0 Flash VL (free)
Input price$30/M tokensFree
Output price$180/M tokensFree
Context window1.1M tokens262K tokens
WeightsClosed—
Free API (OpenRouter)NoYes (1 provider)
ReleasedMar 2026Sep 2026
Side by side

Same prompt, both answers

Opening lines from 6 of the 17 prompts both answered. Formatting stripped, words untouched.

Historical Counterfactual Analysis

If the transistor had been invented in 1920 instead of 1947, trace the likely technological, economic, and geopolitical implications through…

GPT-5.4 Pro2,183 words
Most likely, a transistor invented in 1920 would move the electronics/computing frontier forward by about 10–15 years by 1980, not the full 27 years. Reason: the transistor alone is not enough; you also need high-purity materials, crystal growth, photolithography, test equipment, software, batteries, precision…
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Ling 3.0 Flash VL (free)2,673 words
If the Transistor Had Been Invented in 1920: A Counterfactual Trajectory to 1980 Preconditions and plausibility By 1920, Karl Braun's cathode ray tube (1897) and Greenleaf Pickard's silicon crystal detector (1906) had already demonstrated semiconductor properties. Quantum theory was nascent (Planck, Bohr).
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Advanced Investment Memo (IC Memo)

You are writing an internal investment committee memo for a long/short equity fund. Company (fictional): LedgerLift (ticker: LLLT) – B2B…

GPT-5.4 Pro1,064 words
LedgerLift (LLLT) — IC Memo Recommendation: Pass 12-month PT range: $40–$47 2-sentence thesis: LedgerLift looks like a good business but only an average stock here: retention is strong (94% GRR, 123% NRR), the model is mostly subscription, and margins are inflecting, but at $46 the shares already discount a lot of the…
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Ling 3.0 Flash VL (free)1,203 words
INVESTMENT COMMITTEE MEMO — LEDGERLIFT (LLLT) Classification: Internal — Investment Committee Date: June 2025 Analyst: [Portfolio Team] Recommendation & Thesis Recommendation: SHORT 12-Month Price Target Range: $28–$38 (base-to-bull DCF; downside to $17 in bear) Thesis: LLLT trades at ~$46 (mkt cap ~$8.7B, EV ~$7.3B)…
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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-5.4 Pro151 words
Dragon Pantry Peanut Noodles A fast, sweet-savory noodle dish made from 7 pantry staples. Ingredients 8 oz spaghetti 1/3 cup peanut butter 3 tbsp soy sauce 1 tbsp honey 1 tbsp vegetable oil 1 tsp garlic powder 1/4 tsp red pepper flakes Water for boiling/thinning the sauce doesn’t count.
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Ling 3.0 Flash VL (free)234 words
✨ Midnight Stardust Pasta ✨ A silky, golden garlic butter pasta that tastes far more magical than its humble ingredients suggest. ⏱ Time Prep: 5 minutes Cook: 12 minutes Total: 17 minutes 🛒 Ingredients (7 Pantry Staples) Spaghetti (8 oz) Butter (4 tbsp) Olive oil (2 tbsp) Garlic (4 cloves, minced) Parmesan cheese (½…
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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-5.4 Pro785 words
Here’s a simple, beginner-friendly 1-month health and longevity plan built around 3 key areas: Nutrition Movement Recovery (sleep + stress) The goal is consistency, not perfection. Start small and make the habits easy enough to keep.
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Ling 3.0 Flash VL (free)493 words
🌱 Your 1-Month Health & Longevity Starter Plan 🥗 Key Area 1: Diet — Nourish Your Body Week 1: Add one extra serving of vegetables to your day (e.g., a handful of spinach in your morning eggs or a side salad at dinner). Week 2: Swap one sugary drink (soda, juice, sweetened coffee) per day for water or herbal tea.
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Debug This Architecture

Here's the architecture for a real-time collaborative document editor (like Google Docs): **System Overview:** - Frontend: React SPA with…

GPT-5.4 Pro2,331 words
This architecture will work for a demo, but it has major correctness, latency, and security problems for a Google-Docs-like editor. Highest-risk flaws Client-clock last-write-wins will lose edits and can be gamed by bad clocks.
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Ling 3.0 Flash VL (free)1,856 words
Architecture Audit: Real-Time Collaborative Document Editor Critical Issues Found: 25+ REAL-TIME COLLABORATION FAILURES Issue #1 — Last-Write-Wins Silently Destroys User Work Problem: If User A and User B both edit the same paragraph, the change with the later client timestamp wins.
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Michelin Star Recipe Design

Design an innovative recipe for a multi-component dish worthy of a Michelin 3-star restaurant. The recipe should feature an unusual…

GPT-5.4 Pro1,913 words
Below is a dish designed in the language of a contemporary 3-star tasting menu: precise, seasonal, technically layered, and centered on a pairing that feels surprising at first, then inevitable.
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Ling 3.0 Flash VL (free)2,639 words
"MYCELIUM" A Celebration of the Hidden Network Beneath the Forest Floor 🍄 CONCEPTUAL NARRATIVE Beneath every forest lies mycelium — the vast, invisible fungal network that connects trees, decomposes matter, and transforms the dead into life.
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Our Verdict
GPT-5.4 Pro
GPT-5.4 Pro
Ling 3.0 Flash VL (free)
Ling 3.0 Flash VL (free)Runner-up

Not enough votes to call it. On the specs, GPT-5.4 Pro has the edge: bigger model tier, bigger context window, major provider backing.

Too close to call

Reviewing agent-written code?See a Brief PR report

API pricing

Cost per 1M tokens

GPT-5.4 Pro
Input
$30.00
Output
$180.00
Ling 3.0 Flash VL (free)
Input
$0.000
Output
$0.000
Where to run it

3 hosts

GPT-5.4 Pro2 hosts
HostInOutContextUptime
Azure AI Foundry$30.00 in·$180.00 out·1.1M—OpenAI$30.00 in·$180.00 out·1.1M·100% up
Ling 3.0 Flash VL (free)1 host
HostInOutContextUptime
NNovitabf16$0 in·$0 out·262k·100% up

Per million tokens. Prices and uptime via OpenRouter, checked 23 Sep 2026.

Research

What we learned reading every model

FAQ

Common questions

GPT-5.4 Pro is developed by OpenAI while Ling 3.0 Flash VL (free) is developed by inclusionAI. GPT-5.4 Pro has a 1.1M token context window vs Ling 3.0 Flash VL (free)'s 262K. You can compare their actual outputs across 17 challenges on Rival to see how they differ in practice.

It depends on your use case. GPT-5.4 Pro and Ling 3.0 Flash VL (free) each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 17 challenges so you can judge which fits your needs best.

GPT-5.4 Pro costs $30/M input tokens and Ling 3.0 Flash VL (free) costs $0/M input tokens. Ling 3.0 Flash VL (free) is $30.00/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 GPT-5.4 Pro and Ling 3.0 Flash VL (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.

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Model pages

GPT-5.4 Pro logo
GPT-5.4 Pro18 outputs, specs and price
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Ling 3.0 Flash VL (free)18 outputs, specs and price
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