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  5. Claude Opus 4.1vsCommand A+
Updated Sep 2026

Claude Opus 4.1vsCommand A+

Command A+ is cheaper than Claude Opus 4.1 at $0.3/M vs $15/M input tokens.

Claude Opus 4.1 and Command A+ compared across 17 shared prompts
SpecClaude Opus 4.1Command A+
Input price$15/M tokens$0.3/M tokens
Output price$75/M tokens$1.5/M tokens
Context window200K tokens192K tokens
WeightsClosedClosed
Free API (OpenRouter)NoNo
ReleasedAug 2025Sep 2026
Side by side

Same prompt, both answers

Opening lines from 6 of the 17 prompts both answered. Formatting stripped, words untouched.

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 4.11,201 words
The Transistor Timeline Shift: A Cascade of Consequences The 1920s-1930s: The Foundation Disruption Immediate Technical Revolution With the transistor arriving in 1920, likely from Bell Labs or a European research institution, the first decade would see rapid miniaturization of radio equipment.
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Command A+2,523 words
A 1920 Transistor: The Ripple Effects Through 1980 The Early Spark – 1920s‑30s What would change? Solid‑state amplifiers appear a quarter‑century earlier. The first practical transistor (likely a point‑contact or junction type) would be patented by the early 1930s, giving radio receivers a tiny, low‑power, reliable…
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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 4.1538 words
Critical Issues Analysis Split-Brain Real-time Synchronization Problem: Users connected to different API servers experience 2+ second delays due to polling mechanism, creating divergent document states and poor collaboration experience.
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Command A+1,674 words
This architecture, while functional for a prototype, contains several critical architectural flaws regarding consistency, availability, and scalability. Below is a breakdown of the failure modes, race conditions, and bottlenecks, followed by proposed solutions and their trade-offs.
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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…

Claude Opus 4.1200 words
Midnight Velvet Pasta A silky, umami-rich pasta that comes together like magic Ingredients (serves 4): Spaghetti or linguine - 1 pound Soy sauce - 3 tablespoons Butter - 4 tablespoons Garlic - 4 cloves Black pepper - 1 teaspoon (freshly cracked) Honey - 1 tablespoon Dried red pepper flakes - ½ teaspoon Instructions…
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Command A+267 words
Dish Name: Golden Garlic Parmesan Pasta Ingredients (7 pantry staples only) 8 oz (≈ 225 g) dry pasta (any shape you like) 3 Tbsp unsalted butter 2 cloves garlic, minced 1 Tbsp olive oil ½ tsp salt (plus extra for pasta water) ¼ tsp freshly ground black pepper ½ cup grated Parmesan cheese Instructions Boil the pasta…
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Advanced Longevity Plan (Biohacker)

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

Claude Opus 4.11,265 words
Advanced 3-Month Biohacker Longevity Optimization Protocol Overview & Philosophy This protocol integrates evidence-based interventions targeting the nine hallmarks of aging while optimizing immediate performance metrics.
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Command A+2,382 words
3‑Month Biohacker Longevity Blueprint Goal: Maximize healthy lifespan, peak physical performance, and cognitive sharpness while building measurable resilience. QUICK‑START SUMMARY (ONE‑PAGE ACTION PLAN) Week Primary Focus Key Supplements (dose & timing) Fasting/Diet Exercise Wearable/HRV Stress/Neuro Lab/Tracking 1‑4…
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Beginner's Longevity Plan

Outline a simple, actionable 1-month plan for someone starting their journey towards better health and longevity. Focus on 3 key areas…

Claude Opus 4.1414 words
Your 1-Month Health & Longevity Kickstart Plan Week 1-2: Foundation Building Start small and build consistency with these three pillars: 🥗 NUTRITION: Simple Whole Foods Week 1: Add one serving of vegetables to lunch and dinner (frozen veggies count!)
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Command A+688 words
1‑Month Starter Plan for Better Health & Longevity Focus: Diet   Exercise   Sleep – three pillars that give the biggest bang‑for‑your‑buck. Why These Three? Diet fuels every cell and controls inflammation. Exercise keeps muscles, heart, and brain sharp.
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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…

Claude Opus 4.1733 words
"Tidal Reverie" White Miso-Aged Hamachi with Coffee Soil, Yuzu Pearls, and Crystallized Seaweed Conceptual Narrative This dish explores the liminal space between land and sea, where morning coffee meets ocean depths.
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Command A+1,636 words
Dish Title – “Moonlit Tide” A five‑component, multi‑textural voyage that marries the elemental forces of fire, water, earth, air and the celestial moon. The narrative follows a solitary night on the Japanese coast where the sea’s fire (charred sea urchin) meets the moon’s silver (gold leaf), the water’s whisper…
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Our Verdict
Claude Opus 4.1
Claude Opus 4.1
Command A+
Command A+Runner-up

Not enough votes to call it. On the specs, Claude Opus 4.1 has the edge: bigger model tier, major provider backing.

Command A+ costs 50x less per token.

Too close to call

Reviewing agent-written code?See a Brief PR report

API pricing

Cost per 1M tokens

Claude Opus 4.1
Input
$15.00
Output
$75.00
Command A+
Input
$0.30
50× cheaper
Output
$1.50
50× cheaper

Command A+ is cheaper on both: 50× input, 50× output.

Where to run it

2 hosts

Claude Opus 4.11 host
HostInOutContextUptime
Amazon Bedrock$15.00 in·$75.00 out·200k·100% up
Command A+1 host
HostInOutContextUptime
Cohere$0.30 in·$1.50 out·192k·99.3% up

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

Research

What we learned reading every model

FAQ

Common questions

Claude Opus 4.1 is developed by Anthropic while Command A+ is developed by Cohere. Claude Opus 4.1 has a 200K token context window vs Command A+'s 192K. You can compare their actual outputs across 17 challenges on Rival to see how they differ in practice.

It depends on your use case. Claude Opus 4.1 and Command A+ each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 17 challenges so you can judge which fits your needs best.

Claude Opus 4.1 costs $15/M input tokens and Command A+ costs $0.3/M input tokens. Command A+ is $14.70/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 Claude Opus 4.1 and Command A+ 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

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