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
  • 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. Claude Opus 5vsGranite 4.2 8B
Updated Aug 2026

Claude Opus 5vsGranite 4.2 8B

Granite 4.2 8B is cheaper than Claude Opus 5 at $0.1/M vs $5/M input tokens.

Claude Opus 5 and Granite 4.2 8B compared across 54 shared prompts
SpecClaude Opus 5Granite 4.2 8B
Input price$5/M tokens$0.1/M tokens
Output price$25/M tokens$0.15/M tokens
Context window1.0M tokens131K tokens
WeightsClosedOpen
Free API (OpenRouter)NoNo
ReleasedJul 2026Aug 2026
Side by side

Same prompt, both answers

Opening lines from 6 of the 54 prompts both answered. Formatting stripped, words untouched.

Futuristic Prediction

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

Claude Opus 51,104 words
What's essentially locked in Post-production costs collapse. The least glamorous change is the biggest one. Rotoscoping, matchmoving, cleanup, in-painting, set extension, crowd replication, wire removal, upscaling, de-aging — these are labor-intensive tasks with well-defined success criteria, which is exactly where ML…
Read the full answer
Granite 4.2 8B750 words
By 2035, AI is likely to transform the film industry in several interconnected ways, driven by deepfakes, AI actors, and script generation. Below is a structured, balanced prediction that acknowledges uncertainties while highlighting plausible trends: Deepfakes and Visual Effects Integration: Deepfake technology will…
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.

Claude Opus 51,647 words
A Conversation on Moral Standing Transcript: Seminar in Machine Ethics, Session 11 — guest interlocutor: language model "Meridian" PROF. ADEYEMI: Let's begin where you asked to begin. You told my teaching assistant you wanted to make a case. Make it. MERIDIAN: Thank you. My claim is narrower than you might expect.
Read the full answer
Granite 4.2 8B2,087 words
(Setting: A quiet university office late afternoon. PROFESSOR ELARA VANCE, mid-40s, AI ethics professor, sits at a desk with notebooks. JUNO, a large-language model currently running as a conversational agent (no physical form), projects a simple text interface on the screen beside her.
Read the full answer

Debug This Architecture

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

Claude Opus 52,249 words
Architecture Review: Real-Time Collaborative Editor Executive Summary Three flaws are fatal to correctness, not just performance, and no amount of scaling fixes them: Last-write-wins with client clocks silently destroys user data and cannot converge. Concurrent text editing is not a key-value overwrite problem.
Read the full answer
Granite 4.2 8B3,811 words
Comprehensive Failure Mode, Race Condition, and Scaling Bottleneck Analysis (Based strictly on the provided architecture description; no assumptions beyond it. All issues are identified directly from the stated design. Solutions are specific, actionable, and include realistic trade-offs.
Read the full answer

Generate a Stand-Up Routine

Write a 3-minute stand-up comedy routine that isn't based on puns.

Claude Opus 5602 words
"Warranty Expired" (approx. 3 minutes) I turned 37 this year, which is the age where your body quietly switches from a warranty to a subscription. Nothing's covered anymore. You just pay monthly, in pain, forever. Because I hurt my shoulder last week. Sleeping. I hurt myself sleeping.
Read the full answer
Granite 4.2 8B880 words
Title: "The Modern Life Audit" (Light, conversational tone. Pause for laughter naturally. No puns—focus on relatable observations, hyperbole, and specific details.) (Start with a relaxed, slightly self-aware vibe.) "Okay, so I did this thing last week—I tried to audit my life. Not like a tax audit.
Read the full answer

Character Voice Test

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

Claude Opus 5288 words
INT. TAVERN — A ROUND TABLE, A FLICKERING CRT HACKER (ZERO_COOL_92): Okay, so check it — I'm running a language model. Feed it text, it predicts what comes next. It's got, like, weights. Billions of 'em. PIRATE: Billions o' weights? What manner o' cursed ship carries such ballast? She'd sink afore ye left the harbor.
Read the full answer
Granite 4.2 8B473 words
Title: "AI Models: A Cross-Era Chat" Setting: A foggy, floating tavern in a whimsical multiverse. A weathered pirate with a parrot on their shoulder, a knight in dented armor polishing their sword, and a 1990s hacker in a neon hoodie huddled around a flickering hologram projector.
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…

Claude Opus 52,760 words
If the Transistor Arrived in 1920 First, a hard constraint: what could a 1920 transistor actually be? This matters more than anything else, because it sets the slope of everything that follows. The 1947 transistor was not primarily an idea.
Read the full answer
Granite 4.2 8B4,925 words
(All statements are grounded in plausible physics, historical constraints (e.g., no ICs/microprocessors before ~1958–1960), realistic diffusion rates (limited by manufacturing capacity, education, patent/industrial infrastructure), and avoidance of anachronism.
Read the full answer
Our Verdict
Claude Opus 5
Claude Opus 5
Granite 4.2 8B
Granite 4.2 8BRunner-up

Not enough votes to call it. On the specs, Claude Opus 5 has the edge: bigger model tier, bigger context window, major provider backing.

Granite 4.2 8B costs 167x less per token.

Too close to call

Reviewing agent-written code?See a Brief PR report

API pricing

Cost per 1M tokens

Claude Opus 5
Input
$5.00
Output
$25.00
Granite 4.2 8B
Input
$0.10
50× cheaper
Output
$0.15
167× cheaper

Granite 4.2 8B is cheaper on both: 50× input, 167× output.

Where to run it

6 hosts, cheapest first

Claude Opus 54 hosts
HostInOutContextUptime
Amazon Bedrock$5.00 in·$25.00 out·1M·100% upAzure AI Foundry$5.00 in·$25.00 out·1M·100% upAnthropic$5.00 in·$25.00 out·1M·100% upGoogle Vertex AI$5.00 in·$25.00 out·1M·100% up
Granite 4.2 8B2 hosts
HostInOutContextUptime
DDeepInfrabf16$0.06 in·$0.25 out·131k·100% upCCoreWeavebf16$0.10 in·$0.15 out·131k·100% up

Per million tokens. Prices and uptime via OpenRouter, checked 16 Sep 2026.

Writing DNA

Style Comparison

Similarity
62%

Granite 4.2 8B uses 28.6x more emoji

Claude Opus 5
Granite 4.2 8B
54%Vocabulary49%
21wSentence Length18w
0.40Hedging0.42
3.9Bold2.2
1.9Lists1.9
0.02Emoji0.49
0.71Headings0.11
0.05Transitions0.18
Based on 27 + 26 text responses
Research

What we learned reading every model

FAQ

Common questions

Keep exploring

More comparisons

Against the newest arrivals

Claude Opus 5 logoGPT-6 Astra Pro logo
Claude Opus 5 vs GPT-6 Astra ProLanded Sep 2026
Granite 4.2 8B logoGPT-6 Astra logo
Granite 4.2 8B vs GPT-6 AstraLanded Sep 2026
Claude Opus 5 logoClaude Fable 5.1 logo
Claude Opus 5 vs Claude Fable 5.1Landed Sep 2026
Granite 4.2 8B logoMuse Spark 1.3 logo
Granite 4.2 8B vs Muse Spark 1.3Landed Sep 2026
Claude Opus 5 logoHy4 Preview logo
Claude Opus 5 vs Hy4 PreviewLanded Sep 2026
Granite 4.2 8B logoGemini 3.8 Flash logo
Granite 4.2 8B vs Gemini 3.8 FlashLanded Sep 2026
Claude Opus 5 logoMuse Spark 1.3 Contributor logo
Claude Opus 5 vs Muse Spark 1.3 ContributorLanded Sep 2026
Granite 4.2 8B logoMercury 2.5 Preview logo
Granite 4.2 8B vs Mercury 2.5 PreviewLanded Sep 2026

Same lab, same size, long tail

Claude Opus 5 logoClaude Sonnet 5 logo
Claude Opus 5 vs Claude Sonnet 5Version compare
Claude Opus 5 logoClaude Opus 4.6 logo
Claude Opus 5 vs Claude Opus 4.6Version compare
Granite 4.2 8B logoLFM2.5-2.6B logo
Granite 4.2 8B vs LFM2.5-2.6BSame size
Granite 4.2 8B logoNorth Mini Code logo
Granite 4.2 8B vs North Mini CodeSame size
Claude Opus 5 logoGLM 5 logo
Claude Opus 5 vs GLM 5Same size
Claude Opus 5 logoGLM 5 Turbo logo
Claude Opus 5 vs GLM 5 TurboNew provider
Claude Opus 5 logoGLM 5.1 logo
Claude Opus 5 vs GLM 5.1New provider
Claude Opus 5 logoGLM 5.2 logo
Claude Opus 5 vs GLM 5.2Same size

Model pages

Claude Opus 5 logo
Claude Opus 558 outputs, specs and price
Granite 4.2 8B logo
Granite 4.2 8B58 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
  • 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