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LLM ComparisonGPT-5Claude 4 Sonnet

GPT-5 vs Claude 4 Sonnet

Compare GPT-5 and Claude 4 Sonnet. Build AI products powered by either model on Appaca.

Model Comparison

FeatureGPT-5Claude 4 Sonnet
ProviderOpenAIAnthropic
Model Typetexttext
Context Window400,000 tokens1,000,000 tokens
Input Cost
$1.25/ 1M tokens
$3.00/ 1M tokens
Output Cost
$10.00/ 1M tokens
$15.00/ 1M tokens

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Strengths & Best Use Cases

GPT-5

OpenAI

1. High reasoning capability

  • Designed for intelligent reasoning across complex domains.
  • Supports reasoning tokens and adjustable reasoning effort.

2. Strong coding and agentic performance

  • Optimized for multi-step coding tasks, tool-use chains, and agent workflows.
  • Handles complex logic, planning, and structured problem solving reliably.

3. Multimodal input

  • Accepts text + image as input.
  • Produces text outputs with strong instruction following.

4. Extensive tool support

  • Works with Web Search, File Search, Image Generation (as a tool), Code Interpreter, MCP, and more.
  • Integrated across Chat Completions, Responses API, Realtime, Assistants, Batch, Embeddings, etc.

Claude 4 Sonnet

Anthropic
  • Hybrid reasoning: supports both fast (“near-instant”) and extended thinking modes.
  • Optimised for responsiveness, cost and high-volume production workloads.
  • Strong coding performance relative to prior Sonnet versions (improved over Sonnet 3.7).
  • Available even in free tiers (alongside paid plans).
  • Better suited for general-purpose use and agents where speed + cost-efficiency matter.

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