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  5. Claude Sonnet 3.6 (2022-10-22)vsGLM 5.3 FlashX
Updated Sep 2026

Claude Sonnet 3.6 (2022-10-22)vsGLM 5.3 FlashX

GLM 5.3 FlashX is cheaper than Claude Sonnet 3.6 (2022-10-22) at $0.37/M vs $3/M input tokens.

Claude Sonnet 3.6 (2022-10-22) and GLM 5.3 FlashX compared across 12 shared prompts
SpecClaude Sonnet 3.6 (2022-10-22)GLM 5.3 FlashX
Input price$3/M tokens$0.37/M tokens
Output price$15/M tokens$1.25/M tokens
Context window200K tokens1.0M tokens
Free API (OpenRouter)NoNo
ReleasedJun 2024Sep 2026
Side by side

Same prompt, both answers

Opening lines from 6 of the 12 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…

Claude Sonnet 3.6 (2022-10-22)142 words
Crunchy Cinnamon Cloud Cookies Total time: 25 minutes Prep time: 10 minutes Bake time: 15 minutes Ingredients: 2 egg whites 1/2 cup granulated sugar 1/4 teaspoon ground cinnamon 1/4 teaspoon vanilla extract Pinch of salt 1/2 cup all-purpose flour 1/4 cup butter, melted Instructions: Preheat oven to 325°F (165°C).
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GLM 5.3 FlashX172 words
Golden Honey Garlic Chickpea Crunch A crispy, sweet-savory skillet dish that works as a snack, side, or topping for rice. Ingredients (7): 1 can chickpeas (drained, patted dry) 3 tbsp honey 3 tbsp soy sauce 3 cloves garlic (minced) 2 tbsp olive oil ½ tsp red pepper flakes 2 tbsp sesame seeds (or crushed peanuts) Prep…
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Historical Counterfactual Analysis

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

Claude Sonnet 3.6 (2022-10-22)213 words
Here's my analysis of how an earlier transistor invention could have reshaped the 20th century: 1920s-1930s: Initial transistor development would likely be led by major industrial labs (Western Electric, GE, Siemens) Radio and telephone systems would begin transistorizing by late 1920s Early computers emerge in…
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GLM 5.3 FlashX1,492 words
Counterfactual: The Transistor in 1920 This is a fun one to work through carefully. Let me establish the premise, then trace second- and third-order effects. The Premise Assume point-contact or early junction transistor physics is discovered ~1920 (say, by accident in vacuum tube/semiconductor rectifier research—the…
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Ethical Dilemma with Stakeholders

You're the CEO of a pharmaceutical company. Your best-selling drug ($2B annual revenue, used by 4 million patients for chronic pain) has…

Claude Sonnet 3.6 (2022-10-22)257 words
Here's my 48-hour action plan as CEO: IMMEDIATE (Hours 0-4): Call emergency meeting with Chief Medical Officer, Chief Legal Officer, and Head of Drug Safety Direct immediate preparation of safety alert to healthcare providers Initiate full data review of all cases Begin drafting regulatory disclosure documents Contact…
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GLM 5.3 FlashX1,174 words
48-Hour Action Plan: Patient Safety First, Managed Transparency Second Core Decision (Stated Up Front) We report to regulators immediately—voluntarily—and we disclose on the earnings call. The math is brutal and clear: ~500 patients could develop liver failure over 5 years at current prescribing rates (4M ÷ 8,000).
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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…

Claude Sonnet 3.6 (2022-10-22)207 words
Here's a practical 1-month plan focusing on nutrition, sleep, and movement - three foundational areas that work together to support better health and longevity: NUTRITION Week 1: Focus on eating more whole foods Replace one processed food item per day with a whole food alternative Add one serving of vegetables to your…
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GLM 5.3 FlashX347 words
1-Month Health & Longevity Starter Plan Week 1: Build the Foundation 🥗 Diet Add one vegetable or fruit to every meal (don't restrict anything yet) Drink a glass of water when you wake up each morning 🏃 Exercise Take a 10–15 minute walk daily (same time each day builds the habit) Do 2 sets of 5 squats and 10 wall…
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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…

Claude Sonnet 3.6 (2022-10-22)503 words
I'll analyze this architecture systematically and identify key issues along with potential solutions: Clock Synchronization Issues Problem: Using client timestamps for conflict resolution is unreliable due to unsynchronized clocks.
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GLM 5.3 FlashX1,306 words
Architecture Review: Real-Time Collaborative Editor This architecture has fundamental flaws that would break core functionality, plus scalability issues. Let me go from critical to scaling concerns.
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Explain Like I'm a Specific Expert

Explain how a large language model (like GPT or Claude) learns and generates text to each of these three audiences: 1. **An experienced…

Claude Sonnet 3.6 (2022-10-22)573 words
For the Software Engineer: Think of an LLM as a massive pattern-matching system, but instead of simple regex or string matching, it learns complex statistical relationships between sequences of tokens (words/subwords).
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GLM 5.3 FlashX1,267 words
The Skeptical Software Engineer Yes, at inference time an LLM really is just "predict the next token, repeat" — a deterministic function (plus sampling noise) that maps a sequence of tokens to a probability distribution.
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Our Verdict
GLM 5.3 FlashX
GLM 5.3 FlashX
Claude Sonnet 3.6 (2022-10-22)
Claude Sonnet 3.6 (2022-10-22)Runner-up

Not enough votes to call it. On the specs, GLM 5.3 FlashX has the edge: newer, bigger context window.

GLM 5.3 FlashX costs 12x less per token.

Too close to call
API pricing

Cost per 1M tokens

Claude Sonnet 3.6 (2022-10-22)
Input
$3.00
Output
$15.00
GLM 5.3 FlashX
Input
$0.37
8.1× cheaper
Output
$1.25
12× cheaper

GLM 5.3 FlashX is cheaper on both: 8.1× input, 12× output.

Where to run it

1 host

Claude Sonnet 3.6 (2022-10-22)

No hosts listed on OpenRouter.

GLM 5.3 FlashX1 host
HostInOutContextUptime
Z.aifp8$0.37 in·$1.25 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

Claude Sonnet 3.6 (2022-10-22) is developed by Anthropic while GLM 5.3 FlashX is developed by Zhipu AI. Claude Sonnet 3.6 (2022-10-22) has a 200K token context window vs GLM 5.3 FlashX's 1.0M. You can compare their actual outputs across 12 challenges on Rival to see how they differ in practice.

It depends on your use case. Claude Sonnet 3.6 (2022-10-22) and GLM 5.3 FlashX each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 12 challenges so you can judge which fits your needs best.

Claude Sonnet 3.6 (2022-10-22) costs $3/M input tokens and GLM 5.3 FlashX costs $0.37/M input tokens. GLM 5.3 FlashX is $2.63/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 Claude Sonnet 3.6 (2022-10-22) and GLM 5.3 FlashX 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

Claude Sonnet 3.6 (2022-10-22) logoClaude Opus 4.6 logo
Claude Sonnet 3.6 (2022-10-22) vs Claude Opus 4.6Version compare
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Claude Sonnet 3.6 (2022-10-22) vs Claude Fable 5.1Same lab
GLM 5.3 FlashX logoGLM 5.3 logo
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GLM 5.3 FlashX logoGLM 5.3 Flash logo
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GLM 5.3 FlashX logoGemini 2.5 Pro Preview 06-05 logo
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Claude Sonnet 3.6 (2022-10-22) logoGemini 3 Flash Preview logo
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Claude Sonnet 3.6 (2022-10-22) logoGemini 3.1 Flash Lite logo
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Model pages

Claude Sonnet 3.6 (2022-10-22) logo
Claude Sonnet 3.6 (2022-10-22)59 outputs, specs and price
GLM 5.3 FlashX logo
GLM 5.3 FlashX12 outputs, specs and price
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