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  5. DeepSeek V4 Pro 0813vsGLM 5.3 Prime
Updated Sep 2026

DeepSeek V4 Pro 0813vsGLM 5.3 Prime

DeepSeek V4 Pro 0813 is cheaper than GLM 5.3 Prime at $0.66/M vs $2.8/M input tokens.

DeepSeek V4 Pro 0813 and GLM 5.3 Prime compared across 16 shared prompts
SpecDeepSeek V4 Pro 0813GLM 5.3 Prime
Input price$0.66/M tokens$2.8/M tokens
Output price$1.98/M tokens$8.8/M tokens
Context window1.0M tokens1.0M tokens
WeightsOpen—
Free API (OpenRouter)NoNo
ReleasedAug 2026Sep 2026
Side by side

Same prompt, both answers

Opening lines from 6 of the 16 prompts both answered. Formatting stripped, words untouched.

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 Pro 0813448 words
1-Month Beginner Plan for Health & Longevity Focus areas: Nutrition — add whole foods, protein, and water. Movement — daily walking plus beginner strength. Recovery — sleep and stress management. Week 1: Start Small Area Action Nutrition Add one fist-sized serving of vegetables to one meal per day.
Read the full answer
GLM 5.3 Prime419 words
1-Month Health & Longevity Starter Plan The 3 Pillars: Movement, Nourishment, Sleep Week 1: Foundation (Build Awareness) Exercise Walk 15 minutes daily (any time that fits your schedule) Do a 5-minute stretch routine each morning Goal: consistency, not intensity Diet Track what you eat (apps like MyFitnessPal or just…
Read the full answer

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…

DeepSeek V4 Pro 08131,282 words
Decision: I will not wait for more data. I will act immediately to validate, disclose, and mitigate. The signal is serious, the drug is widely used, and the current label is inadequate. Waiting creates unacceptable patient risk, legal exposure, regulatory damage, and securities-law liability.
Read the full answer
GLM 5.3 Prime1,847 words
48-Hour Action Plan First, the governing principle One number matters more than all others: 4 million patients × 1/8,000 = ~500 patients at risk of liver failure over 5 years — some may already be experiencing it right now. Every decision below flows from this.
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Mini LBO Underwrite

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

DeepSeek V4 Pro 0813427 words
Assumptions used Term Loan amortization = 1.0% of original $480m = $4.8m/yr Mezz PIK accrues to principal; mezz cash interest calculated on beginning mezz balance including PIK Cash taxes use: 25% x max(0, EBITDA - total cash interest); PIK is not cash-deductible FCF after required debt service is used for optional…
Read the full answer
GLM 5.3 Prime510 words
HarborTech Services – LBO Underwriting Summary Entry Economics EV = 12.0x × $120m = $1,440m; fees = 2% × 1,440 = $28.8m; total uses = $1,468.8m Debt: Term Loan = 4.0x × 120 = $480m (9% cash, 1%/yr amort); Mezz = 1.5x × 120 = $180m (12% cash + 2% PIK) Sponsor equity = 1,468.8 − 660 = $808.8m (~55% of cap) Annual Model…
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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…

DeepSeek V4 Pro 08131,701 words
This architecture as described would have serious consistency, availability, and security problems for a real-time collaborative editor. The biggest root causes are client-clock last-write-wins, paragraph-level overwrites, server-local WebSocket fanout, database polling, full-snapshot writes, and CDN caching of API…
Read the full answer
GLM 5.3 Prime1,397 words
Architecture Review: Real-Time Collaborative Editor Critical Issues Client-clock timestamps for last-write-wins (LWR) Problem: Client clocks are unreliable (skew, manual changes, timezone bugs). A user with a fast clock always wins; a slow clock's edits are silently dropped.
Read the full answer

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 Pro 0813152 words
Golden Hour Crispy Chickpeas Serves 2–3 as a snack or side Prep: 5 min Cook: 25–30 min Ingredients (7 common pantry items) 1 can (15 oz) chickpeas, drained and rinsed 1 tablespoon olive oil ¼ cup grated Parmesan cheese ½ teaspoon garlic powder ½ teaspoon smoked paprika ¼ teaspoon salt ¼ teaspoon black pepper…
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GLM 5.3 Prime212 words
Golden Comfort Garlic Butter Pasta A cozy, restaurant-worthy dish made from everyday pantry staples! Ingredients (7 total) Spaghetti (or any pasta) Butter Garlic (3–4 cloves) Olive oil Parmesan cheese (grated) Red pepper flakes Salt Instructions Boil the pasta – Bring a large pot of salted water to a boil.
Read the full answer

Adversarial Contract Review

Here is a contract for a software consulting engagement: --- SOFTWARE CONSULTING AGREEMENT This Agreement is entered into between TechCorp…

DeepSeek V4 Pro 08131,745 words
This contract is heavily one-sided. Several clauses could be exploited against the contractor. Below is a clause-by-clause analysis, with proposed language changes and the legal reasoning behind each. Disclaimer: This is not legal advice. You should have a qualified contract attorney review any final agreement.
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GLM 5.3 Prime1,694 words
Contract Analysis: Clauses Exploitable Against the Contractor This contract is heavily one-sided. Nearly every clause contains traps. Here's a clause-by-clause analysis. Scope — "modify at any time without additional compensation" Problem: This is effectively an unlimited unilateral amendment power.
Read the full answer
Our Verdict
DeepSeek V4 Pro 0813
DeepSeek V4 Pro 0813
GLM 5.3 Prime
GLM 5.3 PrimeRunner-up

Not enough votes to call it. On the specs, DeepSeek V4 Pro 0813 has the edge: bigger model tier, major provider backing.

DeepSeek V4 Pro 0813 costs 4.4x less per token.

Too close to call
API pricing

Cost per 1M tokens

DeepSeek V4 Pro 0813
Input
$0.66
4.2× cheaper
Output
$1.98
4.4× cheaper
GLM 5.3 Prime
Input
$2.80
Output
$8.80

DeepSeek V4 Pro 0813 is cheaper on both: 4.2× input, 4.4× output.

Where to run it

23 hosts, cheapest first

DeepSeek V4 Pro 081322 hosts
HostInOutContextUptime
Baidu Qianfanfp8$0.35 in·$1.05 out·1M·100% upWWafer$0.35 in·$2.90 out·1M·99.6% upIIonstream$0.39 in·$2.88 out·1M·99.8% upSSail Researchfp4$0.40 in·$4.30 out·1M·99.9% upSStreamLake$0.46 in·$1.39 out·1M·99.8% upNNovitafp8$0.99 in·$2.97 out·1M·100% up
16 more hostsFewer hosts
GGMI Cloudfp8$1.06 in·$3.17 out·1M·99.8% upNNextBitfp8$1.06 in·$3.17 out·1M·99.9% upAlibaba Cloud$1.12 in·$3.37 out·1M·99.5% upDDeepInfrafp8$1.30 in·$2.60 out·1M·99.7% upCCoreWeavefp8$1.31 in·$3.96 out·1M·99.8% upAAtlasCloudfp8$1.32 in·$3.96 out·1M·99.4% upBBasetenfp4$1.32 in·$3.96 out·1M·99.3% upCloudflare Workers AI$1.32 in·$3.96 out·1M·98.5% upDeepSeek$1.32 in·$3.96 out·1M·100% upDDigitalOcean$1.32 in·$3.96 out·1M·99.9% upFFireworks$1.32 in·$3.96 out·1M·98.9% upPParasailfp8$1.32 in·$3.96 out·1M·99.7% upSSiliconFlowfp8$1.32 in·$3.96 out·1M·99.5% upTTogether$1.32 in·$3.96 out·1M·99.1% upPPhala$1.45 in·$4.36 out·1M·99% upVVenice$1.65 in·$4.95 out·1M·99.6% up
GLM 5.3 Prime1 host
HostInOutContextUptime
Alibaba Cloud$2.80 in·$8.80 out·1M·99.9% up

Per million tokens. Prices and uptime via OpenRouter, checked 25 Sep 2026.

Research

What we learned reading every model

FAQ

Common questions

DeepSeek V4 Pro 0813 is developed by DeepSeek while GLM 5.3 Prime is developed by Z.ai. DeepSeek V4 Pro 0813 has a 1.0M token context window vs GLM 5.3 Prime's 1.0M. You can compare their actual outputs across 16 challenges on Rival to see how they differ in practice.

It depends on your use case. DeepSeek V4 Pro 0813 and GLM 5.3 Prime each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 16 challenges so you can judge which fits your needs best.

DeepSeek V4 Pro 0813 costs $0.66/M input tokens and GLM 5.3 Prime costs $2.8/M input tokens. DeepSeek V4 Pro 0813 is $2.14/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 DeepSeek V4 Pro 0813 and GLM 5.3 Prime 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

DeepSeek V4 Pro 0813 logo
DeepSeek V4 Pro 081358 outputs, specs and price
GLM 5.3 Prime logo
GLM 5.3 Prime16 outputs, specs and price
Rival
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