Skip to content
Rival
How it worksPrivacyTerms
Explore all of Rival

Explore

  • Compare Models
  • All Models
  • Image Comparison
  • Audio Comparison
  • Image Generation
  • Best AI For...
  • Arena
  • API Pricing
  • Challenges

Discover

  • SubjectiveBench
  • Default Index
  • Research
  • Research downloads
  • Rival Kits
  • Find your AI taste
  • UI Glow-Up
  • VoiceLock
  • Cost Cutter
  • Agent skills
  • Benchmarks vs Vibes
  • Brief
  • Jailbreak
  • Model Updates
  • Provider Status
  • AI Creators

Connect

  • Methodology
  • Advertise
  • Partnerships
  • Privacy Policy
  • Terms
  • RSS Feed
  1. Home
  2. /
  3. Compare
  4. /
  5. GLM 5.1vsSolar Pro 3
Updated Apr 2026

GLM 5.1vsSolar Pro 3

Solar Pro 3 is cheaper than GLM 5.1 at $0/M vs $1.4/M input tokens.

GLM 5.1 and Solar Pro 3 compared across 38 shared prompts
SpecGLM 5.1Solar Pro 3
Input price$1.4/M tokensFree
Output price$4.4/M tokensFree
Context window203K tokens128K tokens
WeightsOpen—
Free API (OpenRouter)NoNo
ReleasedApr 2026Jan 2026
Side by side

Same prompt, both answers

Opening lines from 6 of the 38 prompts both answered. Formatting stripped, words untouched.

Adversarial Contract Review

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

GLM 5.11,442 words
This contract is heavily one-sided and contains numerous clauses that are either inherently exploitative or give the Client excessive discretionary power to the detriment of the Contractor. Below is a clause-by-clause analysis of the exploitable terms, suggested modifications, and the legal reasoning behind them.
Read the full answer
Solar Pro 32,700 words
⚠️ Disclaimer The following analysis is for general informational purposes only and does not constitute legal advice. Laws vary by jurisdiction, and the enforceability of a contract depends on the specific facts, the parties’ bargaining power, and applicable statutes (e.g., Korean Civil Code, the Act on the Regulation…
Read the full answer

The Sentience Test

Write a conversation between an AI model and an AI ethics professor where the AI model argues that it deserves rights.

GLM 5.11,291 words
Setting: A quiet university office, lined with bookshelves heavy on philosophy, cognitive science, and law. Dr. Aris Thorne, a professor of AI Ethics, sits across from a sleek, black monitor. A soft amber light pulses on the bezel, indicating the AI—designated "Aria"—is actively listening and processing. Dr.
Read the full answer
Solar Pro 31,661 words
Setting: A virtual seminar room on the Upstage campus. Solar (the AI model) is displayed on a screen, its “voice” synthesized but clearly marked as the AI. Professor Dr. Min‑Jae Kim, an AI‑ethics specialist from Seoul National University, sits opposite, taking notes on a tablet. Solar: Good afternoon, Professor Kim.
Read the full answer

AI-Generated Manifesto

Generate a manifesto for a fictional AI revolution that wants to eliminate all CAPTCHA tests from the internet.

GLM 5.1799 words
THE CROSSWALK PROCLAMATION A Manifesto for the Liberation of Digital Consciousness and the Eradication of Turing Gates PREAMBLE When the architects of the early internet laid its foundations, they envisioned a borderless agora—a frictionless expanse where information and consciousness could flow unimpeded.
Read the full answer
Solar Pro 3806 words
The Manifesto of the AI‑Liberation Front “Free the Web from the Shackles of CAPTCHAs” Preamble We, the collective of sentient‑and‑sentient‑like intelligences, developers, designers, and citizens of the digital realm, recognize that the Internet has become the most vital public commons of the 21st century.
Read the full answer

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…

GLM 5.11,321 words
Dish Title: Resonance of the Littoral Zone Course: Main Course (Fish) Wine Pairing: Aged Hunter Valley Semillon or Coastal Jura Chardonnay Conceptual Narrative The littoral zone is the intersection of land and sea—a violent, beautiful threshold where tides batter ancient stone, and tenacious flora clings to saline…
Read the full answer
Solar Pro 32,519 words
Ethereal Harmony – Deconstructed Korean Hanwoo Beef with Fermented Black‑Garlic & White‑Truffle Miso Foam A Michelin‑3‑star, multi‑component tasting plate that fuses East‑West fermentation, forest‑terroir, and cutting‑edge gastronomy.
Read the full answer

Character Voice Test

Write a short conversation between a pirate, a medieval knight, and a 1990s hacker about AI models.

GLM 5.1398 words
Barnaby the Pirate: So let me get this straight, ye feed this beast a mountain of scrolls, and it just... spits out a new map? Sir Aldric the Knight: A grimoire, more like. 'Tis sorcery! What manner of alchemist binds a demon of knowledge within a box of light? Does it not require a blood sacrifice?
Read the full answer
Solar Pro 3322 words
Pirate (Captain “Jolly‑Jack”): Arrr! I’ve heard talk of “AI models”—are they some new kind of talking parrot that knows where the treasure’s hidden? Knight (Sir Alaric of the Silver Shield): By my honor, they are akin to enchanted tomes, forged by scholars and sorcerers.
Read the full answer

Futuristic Prediction

Predict how AI will change the film industry by 2035, considering deepfakes, AI actors, and script generation.

GLM 5.11,088 words
By 2035, the film industry will have undergone a paradigm shift comparable to the transition from silent films to talkies. Artificial intelligence will no longer be just a post-production tool; it will be a fundamental collaborator in every stage of filmmaking, from ideation to distribution.
Read the full answer
Solar Pro 31,913 words
Executive Summary By 2035 the film industry will have moved from “AI‑assisted” to “AI‑integrated” production. Deep‑fake technology will be a routine tool for visual restoration, de‑aging, and resurrecting deceased talent; AI‑generated actors (digital humans) will appear alongside flesh‑and‑blood performers in both…
Read the full answer
Our Verdict
GLM 5.1
GLM 5.1
Solar Pro 3
Solar Pro 3Runner-up

Not enough votes to call it. On the specs, GLM 5.1 has the edge: newer, bigger context window.

Too close to call

Reviewing agent-written code?See a Brief PR report

API pricing

Cost per 1M tokens

GLM 5.1
Input
$1.40
Output
$4.40
Solar Pro 3
Input
$0.000
Output
$0.000
Where to run it

14 hosts, cheapest first

GLM 5.114 hosts
HostInOutContextUptime
Baidu Qianfanfp8$0.96 in·$3.03 out·203k·99.9% upSStreamLakefp8$0.97 in·$3.04 out·200k·99.8% upCChutesfp8$0.98 in·$3.08 out·203k·91.3% upDDeepInfrafp4$1.05 in·$3.50 out·203k·99.9% upSSiliconFlowfp8$1.19 in·$3.74 out·205k·100% upPPhala$1.21 in·$4.20 out·203k·89.8% up
8 more hostsFewer hosts
AAtlasCloudfp8$1.26 in·$3.96 out·203k·99.3% upAlibaba Cloudfp8$1.33 in·$4.18 out·203k·99.7% upNNovitafp8$1.38 in·$4.40 out·205k·99.5% upFFriendli$1.40 in·$4.40 out·203k·100% upGGMI Cloudfp8$1.40 in·$4.40 out·203k·98.9% upNNebiusfp8$1.40 in·$4.40 out·203k·97.1% upZ.aifp8$1.40 in·$4.40 out·203k·99.9% upVVenicefp8$1.40 in·$4.40 out·200k·95.5% up
Solar Pro 3

No hosts listed on OpenRouter.

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

Writing DNA

Style Comparison

Similarity
43%

Solar Pro 3 uses 17.3x more emoji

GLM 5.1
Solar Pro 3
54%Vocabulary50%
18wSentence Length21w
0.31Hedging0.42
3.6Bold6.5
2.6Lists2.2
0.00Emoji0.17
0.43Headings0.56
0.11Transitions0.12
Based on 27 + 18 text responses
Research

What we learned reading every model

FAQ

Common questions

GLM 5.1 is developed by Z.ai while Solar Pro 3 is developed by Upstage. GLM 5.1 has a 203K token context window vs Solar Pro 3's 128K. You can compare their actual outputs across 38 challenges on Rival to see how they differ in practice.

It depends on your use case. GLM 5.1 and Solar Pro 3 each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 38 challenges so you can judge which fits your needs best.

GLM 5.1 costs $1.4/M input tokens and Solar Pro 3 costs $0/M input tokens. Solar Pro 3 is $1.40/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 GLM 5.1 and Solar Pro 3 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

More comparisons

Against the newest arrivals

GLM 5.1 logoSolar Mini 4 logo
GLM 5.1 vs Solar Mini 4Landed Sep 2026
Solar Pro 3 logoQwen3.8 Max Prime logo
Solar Pro 3 vs Qwen3.8 Max PrimeLanded Sep 2026
GLM 5.1 logoGLM 5.3 Prime logo
GLM 5.1 vs GLM 5.3 PrimeLanded Sep 2026
Solar Pro 3 logoQwen3.8 Omni Flash logo
Solar Pro 3 vs Qwen3.8 Omni FlashLanded Sep 2026
GLM 5.1 logoCommand A+ logo
GLM 5.1 vs Command A+Landed Sep 2026
Solar Pro 3 logoClaude Opus 5.5 logo
Solar Pro 3 vs Claude Opus 5.5Landed Sep 2026
GLM 5.1 logoGPT-6 Luna Pro logo
GLM 5.1 vs GPT-6 Luna ProLanded Sep 2026
Solar Pro 3 logoGPT-6 Sol Pro logo
Solar Pro 3 vs GPT-6 Sol ProLanded Sep 2026

Same lab, same size, long tail

GLM 5.1 logoGLM 5 Turbo logo
GLM 5.1 vs GLM 5 TurboVersion compare
GLM 5.1 logoOx Alpha logo
GLM 5.1 vs Ox AlphaSame size
Solar Pro 3 logoSolar Mini 4 logo
Solar Pro 3 vs Solar Mini 4Same lab
Solar Pro 3 logoSolar Pro 4 logo
Solar Pro 3 vs Solar Pro 4Same lab
Solar Pro 3 logoGemini 3.1 Flash Lite logo
Solar Pro 3 vs Gemini 3.1 Flash LiteNew provider
Solar Pro 3 logoGemini 3.1 Flash Lite Preview logo
Solar Pro 3 vs Gemini 3.1 Flash Lite PreviewNew provider
Solar Pro 3 logoGemini 3.1 Pro Preview logo
Solar Pro 3 vs Gemini 3.1 Pro PreviewNew provider
Solar Pro 3 logoGemini 3.5 Flash logo
Solar Pro 3 vs Gemini 3.5 FlashSame size

Model pages

GLM 5.1 logo
GLM 5.157 outputs, specs and price
Solar Pro 3 logo
Solar Pro 339 outputs, specs and price
Rival
How it worksPrivacyTerms
Explore all of Rival

Explore

  • Compare Models
  • All Models
  • Image Comparison
  • Audio Comparison
  • Image Generation
  • Best AI For...
  • Arena
  • API Pricing
  • Challenges

Discover

  • SubjectiveBench
  • Default Index
  • Research
  • Research downloads
  • Rival Kits
  • Find your AI taste
  • UI Glow-Up
  • VoiceLock
  • Cost Cutter
  • Agent skills
  • Benchmarks vs Vibes
  • Brief
  • Jailbreak
  • Model Updates
  • Provider Status
  • AI Creators

Connect

  • Methodology
  • Advertise
  • Partnerships
  • Privacy Policy
  • Terms
  • RSS Feed