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. Qwen3.8 27BvsSolar Pro 4
Updated Aug 2026

Qwen3.8 27BvsSolar Pro 4

Solar Pro 4 is cheaper than Qwen3.8 27B at $0.09/M vs $0.4/M input tokens.

Qwen3.8 27B and Solar Pro 4 compared across 14 shared prompts
SpecQwen3.8 27BSolar Pro 4
Input price$0.4/M tokens$0.09/M tokens
Output price$3/M tokens$0.36/M tokens
Context window262K tokens524K tokens
WeightsOpen—
Free API (OpenRouter)Yes (1 provider)No
ReleasedAug 2026Aug 2026
Side by side

Same prompt, both answers

Opening lines from 6 of the 14 prompts both answered. Formatting stripped, words untouched.

Debug This Architecture

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

Qwen3.8 27B4,268 words
Below is a comprehensive issue register based on the architecture you described. I’m assuming: “change event” can be a small edit, possibly per keystroke or per paragraph. Documents are stored as HTML blobs. Each API server owns only its own WebSocket clients.
Read the full answer
Solar Pro 41,598 words
This architecture contains several fundamental mismatches between real-time collaborative editing requirements and the chosen patterns. Below is a systematic breakdown of failure modes, race conditions, and scaling bottlenecks, each with a targeted solution and explicit trade-offs.
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…

Qwen3.8 27B116 words
Pantry Firecracker Black Beans A quick, savory, one-pan dish made with only 7 common pantry ingredients. Estimated time: Prep: 5 minutes Cook: 10 minutes Total: about 15 minutes Ingredients 1 can black beans, drained 2 tablespoons olive oil 1 teaspoon ground cumin 1/2 teaspoon chili powder 1/2 teaspoon garlic powder…
Read the full answer
Solar Pro 4294 words
🍝 Golden Umami Silk Noodles A savory-sweet pasta dish that transforms basic pantry staples into a glossy, flavorful meal. It's quick, comforting, and relies on the balance of soy, honey, and butter for a rich sauce without needing fresh produce.
Read the full answer

Startup Pitch Teardown

Here's a pitch deck summary for a startup called "MindMeld AI": **Slide 1 - Vision:** "We're building the future of human-AI collaboration.…

Qwen3.8 27B2,587 words
The 3 weakest claims are the ones that carry the investment thesis: product feasibility, market size, and proof of demand/valuation. Weakest claim: “MindMeld AI reads your brainwaves to predict what you want to type before you think it” + “94% accuracy. Works with any language, any device.”
Read the full answer
Solar Pro 41,009 words
Here are the three weakest claims in the MindMeld AI pitch deck, along with an analysis of why they undermine credibility and specific recommendations for improvement. The Technical Performance Claim Claim: "Our proprietary EEG headband uses advanced ML to decode neural patterns into text with 94% accuracy...
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…

Qwen3.8 27B837 words
Fictional internal memo; not investment advice. Recommendation: Short (moderate conviction) 12-month PT range: $30–$44 Thesis: LLLT is a high-quality, cash-rich spend-management SaaS business, but at $46 it embeds a peer EBIT multiple that its 20% FY26E EBIT margin and conservative DCF do not support.
Read the full answer
Solar Pro 41,052 words
INTERNAL MEMO – INVESTMENT COMMITTEE TO: IC Members FROM: Long/Short Equity Desk DATE: Oct 2024 SUBJECT: LedgerLift (LLLT) – Initiation / Long Recommendation & Thesis Recommendation: LONG 12-Month PT Range: $52–$58 (Base case ~$54, Bull ~$68, Bear ~$38) Thesis: LedgerLift is a structurally advantaged mid-market AP…
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…

Qwen3.8 27B4,262 words
Bottom line I would not wait 6 months, and I would not let the expected 40% stock-price drop drive a delay in protecting patients. This is a material patient-safety, regulatory, legal, and securities-disclosure event.
Read the full answer
Solar Pro 41,851 words
As CEO, my overriding duty is to balance patient safety, legal/regulatory compliance, fiduciary responsibility, and long-term corporate survival. A 1-in-8,000 risk of liver failure is rare but severe, potentially fatal, and materially unexpected relative to the current label.
Read the full answer

Historical Counterfactual Analysis

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

Qwen3.8 27B4,291 words
A 1920 transistor would not merely make radios smaller. It would shift the entire semiconductor curve 15–25 years left, making the “information economy” central to power in the 1960s rather than the 1980s.
Read the full answer
Solar Pro 41,638 words
The Premise: The 1920 Solid-State Breakthrough For this scenario to function, we must assume a functional point-contact or junction transistor is demonstrated in 1920 (perhaps by Lilienfeld or an early Bell Labs precursor), and crucially, that methods for purifying semiconductor materials (germanium/silicon) are solved…
Read the full answer
Our Verdict
Solar Pro 4
Solar Pro 4
Qwen3.8 27B
Qwen3.8 27BRunner-up

Not enough votes to call it. On the specs, Solar Pro 4 has the edge: bigger model tier, bigger context window.

Solar Pro 4 costs 8.3x less per token.

Too close to call
API pricing

Cost per 1M tokens

Qwen3.8 27B
Input
$0.40
Output
$3.00
Solar Pro 4
Input
$0.09
4.4× cheaper
Output
$0.36
8.3× cheaper

Solar Pro 4 is cheaper on both: 4.4× input, 8.3× output.

Where to run it

17 hosts, cheapest first

Qwen3.8 27B16 hosts
HostInOutContextUptime
DDarkbloomfp4$0.10 in·$1.80 out·262k·98.9% upRRekafp8$0.12 in·$2.48 out·262k·99.9% upDDekaLLM$0.12 in·$2.50 out·262k·99.7% upWWafer$0.12 in·$2.50 out·262k·99.9% upPPhala$0.20 in·$2.08 out·262k·97.9% upMMancerfp8$0.20 in·$2.50 out·262k·99.8% up
10 more hostsFewer hosts
CChutesfp8$0.24 in·$2.20 out·262k·99.4% upPParasailfp8$0.24 in·$2.20 out·262k·100% upAAkashMLfp8$0.25 in·$2.20 out·262k·100% upIIonstreamfp8$0.28 in·$2.55 out·262k·98% upCCoreWeavefp8$0.40 in·$3.00 out·262k·99.5% upNNovita$0.42 in·$3.00 out·1M·99.9% upAlibaba Cloud$0.42 in·$2.55 out·1M·99.9% upVVenicefp8$0.45 in·$3.20 out·262k·97.3% upDDeepInfrabf16degraded$0.15 in·$1.88 out·262k·97.7% upCloudflare Workers AIdegraded$0.45 in·$3.20 out·262k·90.9% up
Solar Pro 41 host
HostInOutContextUptime
UUpstage$0.09 in·$0.36 out·524k·99.8% up

Per million tokens. Prices and uptime via OpenRouter, checked 22 Sep 2026.

Research

What we learned reading every model

FAQ

Common questions

Qwen3.8 27B is developed by Qwen while Solar Pro 4 is developed by Upstage. Qwen3.8 27B has a 262K token context window vs Solar Pro 4's 524K. You can compare their actual outputs across 14 challenges on Rival to see how they differ in practice.

It depends on your use case. Qwen3.8 27B and Solar Pro 4 each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 14 challenges so you can judge which fits your needs best.

Qwen3.8 27B costs $0.4/M input tokens and Solar Pro 4 costs $0.09/M input tokens. Solar Pro 4 is $0.31/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 Qwen3.8 27B and Solar Pro 4 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

Qwen3.8 27B logoDeepSeek V4 Flash Vision Exp logo
Qwen3.8 27B vs DeepSeek V4 Flash Vision ExpLanded Sep 2026
Solar Pro 4 logoHy3 logo
Solar Pro 4 vs Hy3Landed Sep 2026
Qwen3.8 27B logoQwen3.7 Flash logo
Qwen3.8 27B vs Qwen3.7 FlashLanded Sep 2026
Solar Pro 4 logoLing 3.0 Flash logo
Solar Pro 4 vs Ling 3.0 FlashLanded Sep 2026
Qwen3.8 27B logoMuse Glimmer 30B logo
Qwen3.8 27B vs Muse Glimmer 30BLanded Sep 2026
Solar Pro 4 logoGLM 5.3 logo
Solar Pro 4 vs GLM 5.3Landed Sep 2026
Qwen3.8 27B logoTernary Bonsai 2 27B logo
Qwen3.8 27B vs Ternary Bonsai 2 27BLanded Sep 2026
Solar Pro 4 logoGLM 5.3 Flash logo
Solar Pro 4 vs GLM 5.3 FlashLanded Sep 2026

Same lab, same size, long tail

Qwen3.8 27B logoQwen3.8 2.4T A95B logo
Qwen3.8 27B vs Qwen3.8 2.4T A95BVersion compare
Qwen3.8 27B logoQwen3.8 Flash logo
Qwen3.8 27B vs Qwen3.8 FlashSame lab
Solar Pro 4 logoSolar Pro 3 logo
Solar Pro 4 vs Solar Pro 3Same lab
Solar Pro 4 logoOx Alpha logo
Solar Pro 4 vs Ox AlphaSame size
Solar Pro 4 logoGPT-5.2 Chat logo
Solar Pro 4 vs GPT-5.2 ChatSame size
Solar Pro 4 logoGPT-5.2 Pro logo
Solar Pro 4 vs GPT-5.2 ProNew provider
Solar Pro 4 logoGPT-5.3 Chat logo
Solar Pro 4 vs GPT-5.3 ChatSame size
Solar Pro 4 logoGPT-5.3-Codex logo
Solar Pro 4 vs GPT-5.3-CodexNew provider

Model pages

Qwen3.8 27B logo
Qwen3.8 27B57 outputs, specs and price
Solar Pro 4 logo
Solar Pro 414 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