Build AI powered apps for your work

Get started free
LLM ComparisonClaude 4 OpusClaude 3 Sonnet

Claude 4 Opus vs Claude 3 Sonnet

Compare Claude 4 Opus and Claude 3 Sonnet. Build AI products powered by either model on Appaca.

Model Comparison

FeatureClaude 4 OpusClaude 3 Sonnet
ProviderAnthropicAnthropic
Model Typetexttext
Context Window200,000 tokens200,000 tokens
Input Cost
$15.00/ 1M tokens
$3.00/ 1M tokens
Output Cost
$75.00/ 1M tokens
$15.00/ 1M tokens

Stop choosing. Use both.

With Appaca you don't have to pick — build apps that are powered by Claude 4 Opus, Claude 3 Sonnet, for your specific use case.

Build your first app free

Strengths & Best Use Cases

Claude 4 Opus

Anthropic
  • Highest capability in the family: described as “our most powerful model yet” by Anthropic.
  • Exceptional at long-running tasks requiring thousands of steps and sustained focus (e.g., continuous codebase work for hours).
  • Excellent performance on benchmarks: e.g., SWE-bench 72.5 % and Terminal-bench 43.2 %.
  • Designed for complex agentic workflows, deep reasoning, tool use, and large context windows.
  • Placed under a higher safety classification (ASL-3) due to its frontier capability and risk profile.

Claude 3 Sonnet

Anthropic

1. Speed + Intelligence Blend

  • 2x faster than Claude 2/2.1
  • Strong reasoning with lower cost

2. Enterprise-Ready

  • Designed for high-volume, large-scale deployments
  • Excellent stability for production workloads

3. Versatile Task Performance

  • Great for RAG, search, document understanding
  • High-quality code generation
  • Effective at sales automation and knowledge retrieval

4. Vision Capabilities

  • Reads charts, graphs, images reliably
  • Extracts text from visuals efficiently