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  5. DeepSeek V4 Pro 0813vsLaguna XS 2.1 (free)
Updated Aug 2026

DeepSeek V4 Pro 0813vsLaguna XS 2.1 (free)

Laguna XS 2.1 (free) is cheaper than DeepSeek V4 Pro 0813 at $0/M vs $0.66/M input tokens.

DeepSeek V4 Pro 0813 and Laguna XS 2.1 (free) compared across 11 shared prompts
SpecDeepSeek V4 Pro 0813Laguna XS 2.1 (free)
Input price$0.66/M tokensFree
Output price$1.98/M tokensFree
Context window1.0M tokens262K tokens
WeightsOpen—
Free API (OpenRouter)NoYes (1 provider)
ReleasedAug 2026Jul 2026
Side by side

Same prompt, both answers

Opening lines from 6 of the 11 prompts both answered. Formatting stripped, words untouched.

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…

DeepSeek V4 Pro 08131,665 words
Littoral Caramelised Orkney Scallop, Smoked Bone Marrow Custard, White Miso Butterscotch, Sea Buckthorn & Finger Lime Gel, Nori Buckwheat Tuile, Dill Ash Serves 4 Conceptual Narrative This dish is built on an unusual but deeply logical pairing: the sweet, saline delicacy of a hand-dived scallop and the primal…
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Laguna XS 2.1 (free)602 words
Recipe: "Nocturne of Shadows and Light" Concept: A poetic exploration of ancient flavors (pomegranate, quince) intertwined with modernist techniques (spherification, sous vide) and an unexpected coffee-cocoa depth, harmonizing the boldness of game with the elegance of fruit.
Read the full answer

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…

DeepSeek V4 Pro 0813908 words
IC Memo: LedgerLift (LLLT) Recommendation: Short 12-month PT range: $25–$31 (probability-weighted DCF ~$29) Thesis: LLLT is a high-quality SaaS compounder, but at $46 the market is pricing roughly 6.5% terminal growth or ~6.3% WACC in our base model, leaving no margin for error.
Read the full answer
Laguna XS 2.1 (free)877 words
INVESTMENT COMMITTEE MEMO Subject: LedgerLift (LLLT) – Long/Short/Comps Analysis Date: [Insert Date] Recommendation: LONG 12-Month Price Target Range: $85–$105 Thesis: LedgerLift is executing on a best-in-class B2B SaaS spend management platform with high net revenue retention (NRR), strong gross margins, and a rapidly…
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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Laguna XS 2.1 (free)635 words
I'll analyze each clause in this software consulting agreement to identify potential risks to the contractor and suggest modifications with legal reasoning. Clause-by-Clause Analysis Clause 1: SCOPE Risk: Unlimited scope creep without additional compensation Modification: Add: "Any modification to the scope requiring…
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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…

DeepSeek V4 Pro 08131,444 words
Assume the 1920 device is a crude but reproducible point-contact transistor — a “crystal triode” — developed in a major U.S. industrial lab (e.g., GE, Westinghouse, or AT&T’s development group).
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Laguna XS 2.1 (free)870 words
The Transistor Revolution: A 1920 Timeline Analysis Immediate Impact (1920-1940) Early Military Applications With transistors available 27 years before radar, telecommunications would see revolutionary improvements: Radio warfare: Nations could develop sophisticated radio direction-finding and jamming capabilities by…
Read the full answer

Advanced Longevity Plan (Biohacker)

Develop a comprehensive, cutting-edge 3-month longevity plan for a biohacker aiming to optimize longevity, physical and cognitive…

DeepSeek V4 Pro 0813772 words
3-Month Longevity & Performance Plan for a Biohacker Disclaimer: This plan is for educational purposes only and is not medical advice. It assumes you are a healthy, active adult with no contraindications. Some components—especially prescription drugs, fasting, and high-intensity training—require medical supervision.
Read the full answer
Laguna XS 2.1 (free)828 words
3-Month Longevity & Performance Optimization Plan for a Biohacker Designed for advanced biohackers with a focus on longevity, cognitive sharpness, and peak physical performance. Assumes access to basic medical testing, wearables, and some advanced tools (e.g., neurofeedback apps).
Read the full answer

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…

DeepSeek V4 Pro 0813958 words
For the experienced software engineer Think of an LLM as a function with billions of parameters that maps a sequence of tokens to a probability distribution over the next token.
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Laguna XS 2.1 (free)610 words
For the Software Engineer Think of training a language model like building a distributed prediction system with an incredibly complex API contract. Instead of training on labeled datasets where you explicitly tell it "this text is sentiment-positive," you're feeding it massive amounts of text and asking it to predict…
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Our Verdict
DeepSeek V4 Pro 0813
DeepSeek V4 Pro 0813
Laguna XS 2.1 (free)
Laguna XS 2.1 (free)Runner-up

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

Slight edge

Reviewing agent-written code?See a Brief PR report

API pricing

Cost per 1M tokens

DeepSeek V4 Pro 0813
Input
$0.66
Output
$1.98
Laguna XS 2.1 (free)
Input
$0.000
Output
$0.000
Where to run it

23 hosts, cheapest first

DeepSeek V4 Pro 081322 hosts
HostInOutContextUptime
SSail Researchfp4$0.40 in·$4.30 out·1M·99.3% upWWafer$0.46 in·$2.90 out·1M·99.5% upSStreamLake$0.46 in·$1.39 out·1M·99.7% upIIonstream$0.62 in·$2.88 out·1M·99.3% upNNovitafp8$0.99 in·$2.97 out·1M·100% upGGMI Cloudfp8$1.06 in·$3.17 out·1M·99.9% up
16 more hostsFewer hosts
Alibaba Cloud$1.12 in·$3.37 out·1M·100% upNNextBitfp8$1.12 in·$3.37 out·1M·95.9% upDDeepInfrafp8$1.30 in·$2.60 out·1M·99.4% upCCoreWeavefp8$1.31 in·$3.96 out·1M·97.3% upAAtlasCloudfp8$1.32 in·$3.96 out·1M·99.8% upBaidu Qianfanfp8$1.32 in·$3.96 out·1M·100% upBBasetenfp4$1.32 in·$3.96 out·1M·92.5% upCloudflare Workers AI$1.32 in·$3.96 out·1M·97.8% upDeepSeek$1.32 in·$3.96 out·1M·100% upDDigitalOcean$1.32 in·$3.96 out·1M·97.8% upFFireworks$1.32 in·$3.96 out·1M·99.5% upPParasailfp8$1.32 in·$3.96 out·1M·99.7% upSSiliconFlowfp8$1.32 in·$3.96 out·1M·97.5% upTTogether$1.32 in·$3.96 out·1M·99.7% upPPhala$1.45 in·$4.36 out·1M·99.9% upVVenice$1.65 in·$4.95 out·1M·83.6% up
Laguna XS 2.1 (free)1 host
HostInOutContextUptime
PPoolsidefp8$0 in·$0 out·262k·99.8% up

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

Research

What we learned reading every model

FAQ

Common questions

DeepSeek V4 Pro 0813 is developed by DeepSeek while Laguna XS 2.1 (free) is developed by Poolside. DeepSeek V4 Pro 0813 has a 1.0M token context window vs Laguna XS 2.1 (free)'s 262K. You can compare their actual outputs across 11 challenges on Rival to see how they differ in practice.

It depends on your use case. DeepSeek V4 Pro 0813 and Laguna XS 2.1 (free) each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 11 challenges so you can judge which fits your needs best.

DeepSeek V4 Pro 0813 costs $0.66/M input tokens and Laguna XS 2.1 (free) costs $0/M input tokens. Laguna XS 2.1 (free) is $0.66/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 Laguna XS 2.1 (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

DeepSeek V4 Pro 0813 logo
DeepSeek V4 Pro 081358 outputs, specs and price
Laguna XS 2.1 (free) logo
Laguna XS 2.1 (free)11 outputs, specs and price
Rival
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Explore all of Rival

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