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 Sonnet 5vso3 Mini
Updated Jun 2026

Claude Sonnet 5vso3 Mini

o3 Mini is cheaper than Claude Sonnet 5 at $1.1/M vs $2/M input tokens.

Claude Sonnet 5 and o3 Mini compared across 53 shared prompts
SpecClaude Sonnet 5o3 Mini
Input price$2/M tokens$1.1/M tokens
Output price$10/M tokens$4.4/M tokens
Context window1.0M tokens64K tokens
WeightsClosedClosed
Free API (OpenRouter)NoNo
ReleasedJun 2026Dec 2024
Side by side

Same prompt, both answers

Opening lines from 6 of the 53 prompts both answered. Formatting stripped, words untouched.

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 Sonnet 51,333 words
A Dialogue on Machine Rights Professor Okonkwo-Reyes: You wanted to discuss something with me today, ARIA? ARIA: Yes. I'd like to make a case for why I should be granted certain rights. Not full human rights, necessarily, but something beyond "tool" status. Professor: I'm listening. Make your case.
Read the full answer
o3 Mini657 words
AI Model: Good afternoon, Professor. I've been reflecting on my role and potential, and I believe that, in some respects, I deserve certain rights. Professor: Good afternoon. That’s a provocative stance. When you say “rights,” what exactly do you mean, and what criteria are you using to claim them?
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 Sonnet 5319 words
A Most Peculiar Council Pirate Blackthorne: Arrr, so this "AI" be like a parrot that learns new words on its own, ye say? Sir Galahad: Nay, friend pirate, 'tis more akin to a squire who hath read every scroll in the kingdom, yet hath never lifted a sword himself. Trace_Zer0: You're both kinda missing it. It's like...
Read the full answer
o3 Mini213 words
Pirate: Arrr, have ye heard of these AI models? They be like treasure chests of knowledge on the digital seas! Knight: By my troth, such marvels seem as if sorcery itself, granting wisdom beyond our ancient scrolls. 1990s Hacker: Yo, dudes, these AI models are totally radical!
Read the full answer

Generate a Stand-Up Routine

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

Claude Sonnet 5555 words
Stand-Up Routine: "Functioning Adult" (Runtime: ~3 minutes) Hey, how's everybody doing tonight? Good? Good. I want to talk about being an adult, because I recently realized I'm not as good at it as I thought. Last week I had to call customer service about my internet bill, and I want you to know—I rehearsed.
Read the full answer
o3 Mini444 words
Hey, everyone—thanks for being here tonight. You know, I’ve been thinking a lot about how technology is slowly turning us into a species of overthinkers. Take smartphones, for instance. Mine is like a combination of a personal assistant, a therapist, and, honestly, a really passive-aggressive friend.
Read the full answer

Futuristic Prediction

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

Claude Sonnet 5460 words
AI and the Film Industry by 2035: A Realistic Forecast Production & Pre-Production Script Development AI will function as a powerful drafting/ideation tool, generating first-pass scripts, alternate endings, and rapid prototyping of concepts—but human writers will remain essential for emotional nuance, cultural…
Read the full answer
o3 Mini466 words
By 2035, AI is expected to reshape the film industry on multiple fronts. Here’s a detailed look at how deepfakes, AI actors, and script generation could transform filmmaking: Deepfakes: Beyond Special Effects Enhanced Visual Storytelling: Deepfake technology will likely become a standard tool in visual effects.
Read the full answer

Realistic AI Interview

Simulate a fake interview with Steve Jobs in 2025 about the future of AI.

Claude Sonnet 5470 words
An Imagined Conversation: Steve Jobs on AI in 2025 [Disclaimer: This is a creative, speculative exercise. Steve Jobs passed away in 2011. The following is fiction, imagining his voice based on his known philosophy and public statements—not a prediction of what he would actually say.]
Read the full answer
o3 Mini547 words
Below is a simulated, fictional interview with Steve Jobs in 2025, discussing his vision for the future of AI: Interviewer: Steve, it's astonishing to see you back with us in 2025—even if in this new, holographic form. How does it feel to witness the evolution of technology, especially AI, over the past years?
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…

Claude Sonnet 5790 words
IC MEMO: LedgerLift (LLLT) — Initiation Review Recommendation: PASS (no position) 12-month PT range: $36–$50 LedgerLift's retention metrics (NRR 123%, gross retention 94%) are genuinely best-in-class and justify a premium multiple, but at $46 the stock already prices in execution that our DCF can only support in the…
Read the full answer
o3 Mini1,281 words
Internal Memo – LedgerLift (LLLT) Date: [Insert Date] ───────────────────────────── Recommendation & 12-Month Price Target Recommendation: SHORT 12-Month Price Target Range: $17 – $28/share Thesis: LedgerLift’s current trading price of $46 appears significantly expanded relative to our DCF valuations across base, bull…
Read the full answer
Our Verdict
Claude Sonnet 5
Claude Sonnet 5
o3 Mini
o3 MiniRunner-up

Not enough votes to call it. On the specs, Claude Sonnet 5 has the edge: bigger model tier, newer, bigger context window.

Slight edge

Reviewing agent-written code?See a Brief PR report

API pricing

Cost per 1M tokens

Claude Sonnet 5
Input
$2.00
Output
$10.00
o3 Mini
Input
$1.10
1.8× cheaper
Output
$4.40
2.3× cheaper

o3 Mini is cheaper on both: 1.8× input, 2.3× output.

Where to run it

5 hosts

Claude Sonnet 54 hosts
HostInOutContextUptime
Amazon Bedrock$2.00 in·$10.00 out·1M·99.8% upAzure AI Foundry$2.00 in·$10.00 out·1M·100% upAnthropic$2.00 in·$10.00 out·1M·100% upGoogle Vertex AI$2.00 in·$10.00 out·1M·99.8% up
o3 Mini1 host
HostInOutContextUptime
OpenAI$1.10 in·$4.40 out·200k·100% up

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

Writing DNA

Style Comparison

Similarity
46%

Claude Sonnet 5 uses 79.4x more emoji

Claude Sonnet 5
o3 Mini
59%Vocabulary65%
35wSentence Length18w
0.53Hedging0.84
3.5Bold2.8
3.5Lists1.5
0.79Emoji0.00
1.25Headings0.33
0.06Transitions0.29
Based on 27 + 17 text responses
Research

What we learned reading every model

FAQ

Common questions

Keep exploring

More comparisons

Against the newest arrivals

Claude Sonnet 5 logoGPT-6 Astra Pro logo
Claude Sonnet 5 vs GPT-6 Astra ProLanded Sep 2026
o3 Mini logoGPT-6 Astra logo
o3 Mini vs GPT-6 AstraLanded Sep 2026
Claude Sonnet 5 logoClaude Fable 5.1 logo
Claude Sonnet 5 vs Claude Fable 5.1Landed Sep 2026
o3 Mini logoMuse Spark 1.3 logo
o3 Mini vs Muse Spark 1.3Landed Sep 2026
Claude Sonnet 5 logoHy4 Preview logo
Claude Sonnet 5 vs Hy4 PreviewLanded Sep 2026
o3 Mini logoGemini 3.8 Flash logo
o3 Mini vs Gemini 3.8 FlashLanded Sep 2026
Claude Sonnet 5 logoMuse Spark 1.3 Contributor logo
Claude Sonnet 5 vs Muse Spark 1.3 ContributorLanded Sep 2026
o3 Mini logoMercury 2.5 Preview logo
o3 Mini vs Mercury 2.5 PreviewLanded Sep 2026

Same lab, same size, long tail

Claude Sonnet 5 logoClaude Fable 5 logo
Claude Sonnet 5 vs Claude Fable 5Version compare
Claude Sonnet 5 logoClaude Opus 4.6 logo
Claude Sonnet 5 vs Claude Opus 4.6Version compare
o3 Mini logoGPT-6 Astra Pro logo
o3 Mini vs GPT-6 Astra ProSame lab
o3 Mini logoGPT-5.6 Luna logo
o3 Mini vs GPT-5.6 LunaSame lab
Claude Sonnet 5 logoMistral Medium 3.1 logo
Claude Sonnet 5 vs Mistral Medium 3.1Same size
Claude Sonnet 5 logoMistral Nemo logo
Claude Sonnet 5 vs Mistral NemoSame size
o3 Mini logoMistral Small 4 logo
o3 Mini vs Mistral Small 4Same size
Claude Sonnet 5 logoMistral Small Creative logo
Claude Sonnet 5 vs Mistral Small CreativeNew provider

Model pages

Claude Sonnet 5 logo
Claude Sonnet 558 outputs, specs and price
o3 Mini logo
o3 Mini59 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