---
type: Comparison
title: Claude Opus 4 vs Claude Sonnet 4
description: Claude Opus 4 vs Claude Sonnet 4
resource: "https://www.contextstudios.ai/comparisons/opus-vs-sonnet"
category: provider
language: en
timestamp: "2026-03-18T10:07:30.212Z"
---

# Claude Opus 4 vs Claude Sonnet 4

## Comparison Factors

| Factor | Claude Opus 4 | Claude Sonnet 4 | Winner |
|--------|------|------|--------|
| Reasoning Depth | Exceptional depth for complex analyses, multi-step planning, and scientific tasks. Best when errors are costly. | Strong reasoning for most production tasks. Minor quality reduction on highly complex problems, sufficient for 90% of use cases. | a |
| Speed | Slower. Typical TTFT 1-3s, TPS 30-60. Suboptimal for real-time interactive applications. | 2-3x faster than Opus. Typical TTFT 300-800ms, TPS 50-100+. Ideal for latency-sensitive applications. | b |
| Cost | 4-5x more expensive per token. Only economically justified for use cases with clear quality requirements. | Better price-performance for most production workloads. Enables 4-5x more volume at same budget. | b |
| Code Quality | Excellent for complex architectural decisions, code review, and algorithmically challenging implementations. | Very good for most coding tasks. Slightly behind Opus on highly complex algorithms. | a |
| Context Understanding | Superior comprehension of long, complex documents and deeply nested dependencies. | Very good context understanding. Small quality drop with very long contexts (>100k tokens). | a |
| Price-Performance | Optimal for: strategic analyses, legal documents, scientific research, safety-critical code. | Optimal for: content generation, standard coding, chatbots, translation, SEO - 80% of all AI workflows. | b |

## Key Statistics

- Claude Sonnet is 4-5x cheaper than Opus at comparable performance for standard tasks
- Claude Opus 4 achieves ~5-8% higher scores than Sonnet on complex reasoning tasks
- For 75-80% of enterprise use cases, Sonnet is sufficient without measurable quality degradation
- Claude Opus 4 TTFT is typically 3-5x higher than Sonnet - critical for real-time applications

Keywords: Claude Opus vs Sonnet, Opus 4 comparison, Sonnet 4 comparison, Anthropic models, LLM comparison